Article
Materials Science, Multidisciplinary
Dong Zhao, Xiaoyang Wang, Ling Chang, Wenli Pei, Chun Wu, Fei Wang, Luran Zhang, Jianjun Wang, Qiang Wang
Summary: Super-fine L1(0)-FePt nanoparticles with high ordering degree were successfully prepared using a modified two-step sintering method. By applying a high magnetic field during the post-sintering process, the fine size characteristics of the nanoparticles were retained and the ordering degree was significantly improved. The high magnetic field can enhance lattice distortion and magnetization energy, leading to a more efficient disorder-order transition.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Luran Zhang, Xinchen Du, Hongjie Lu, Dandan Gao, Huan Liu, Qilong Lin, Yongze Cao, Jiyang Xie, Wanbiao Hu
Summary: FePt and FePtCu nanoparticles with good dispersion were successfully fabricated using a simple, green, one-step solid-phase reduction method, with the addition of 5% Cu significantly improving the properties of FePt nanoparticles. The highest performance FePtCu nanoparticles were obtained when annealed at 750 degrees Celsius.
Article
Chemistry, Multidisciplinary
Xin Liu, Shulan Zuo, Hui Wang, Tianli Zhang, Ying Dong, Chengbao Jiang
Summary: In this study, L1(0)-FePt/Co core-shell nanoparticles were synthesized using a seed-mediated growth method, and high-performance nanocomposite magnets were obtained by tuning the Co shell thickness and orienting the nanoparticles under an external magnetic field.
Article
Materials Science, Multidisciplinary
Munevver Koroglu, Burcak Ebin, Srecko Stopic, Sebahattin Gurmen, Bernd Friedrich
Summary: AgCu nanoparticles were prepared using hydrogen-reduction-assisted Ultrasonic Spray Pyrolysis and the Hydrogen Reduction method with different precursor concentrations, resulting in changes in morphology and crystal structure. The increase in concentration led to larger particle sizes and enhanced antibacterial activity against Escherichia coli. These nanoparticles have potential applications in various industries.
Article
Chemistry, Multidisciplinary
Ling Chang, Chun Wu, Qunshou Wang, Ting Li, Dong Zhao, Kai Wang, Qiang Wang, Wenli Pei
Summary: A facile strategy to operate interfaces during the synthesis of L1(0)-FePt@Bi-rich nanoparticles has been proposed. The study demonstrates that controlling the heating rates can influence the formation of different interfaces and improve the uniformity of phases and composition in the nanoparticles.
Article
Energy & Fuels
Liqiang Zhang, Shanshan Li, Zhengda Yang, Xinwei Wang, Dawei Li, Riyi Lin
Summary: By studying the effects of the first step pyrolysis temperature and residence time on the two-step pyrolysis of lignin, it was found that higher pyrolysis temperature promoted the break of lignin structure and removal of side chains, significantly affecting the product distribution. Two-step pyrolysis of lignin can improve the selectivity of value-added chemicals.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Biochemistry & Molecular Biology
Wendong Wang, Donghua Li, Ping Xiang, Yunwu Zheng, Zhifeng Zheng, Xu Lin, Xiahong He, Can Liu
Summary: The pyrolysis of biomass can convert it into high-performance chemicals and functional materials. However, current technologies have limitations in terms of conversion rates and products. This study presents a method for producing nitrogen-containing chemicals and biochar with high adsorption capacity through the carbonization of walnut shells. It provides an efficient, rapid, and environmentally friendly approach for utilizing biomass.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Abdalla Obeidat, Bilal Aladerah, Mohammad-Khair Qaseer
Summary: A Monte Carlo simulation is used to explore the magnetic properties of L1(0) ordered FeNi and FePt binary alloys. The calculated variations of specific heat, magnetic susceptibility, and magnetization with temperature show good agreement with experimental values. The study also includes the calculation of thermal hysteresis loops, magnetic remanence, and coercive field. Additionally, the magnetic properties of the ferrimagnetic phase are presented.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jiao Chen, Zhenhua Zhu, Jiali Cai, Mengru Cao, Feng Sha, Sha Tao, Hao Yang, Haifeng Gan, Hongli Wu, Fei Cao, Lili Zhao, Pingkai Ouyang
Summary: This study developed a novel pathway for synthesizing the high-value pharmaceutical intermediate 2-furylglyoxylic acid from a bio-based sugar-acid monomer. Through experiments and theoretical calculations, the transformation process and the flexibility and versatility of furan-based compounds were explored.
Article
Physics, Applied
Daiki Isurugi, Takashi Saito, Shun Kaneko, Kim Kong Tham, Tomoyuki Ogawa, Shin Saito
Summary: This study evaluated the blocking temperature (T (B)) and blocking temperature distribution (Delta T (B)) of magnetic grains in L1(0)-type FePt granular films with different grain boundary materials (GBMs). T (B) and Delta T (B) were measured from remanent magnetization. The relationship between the degree of order and Curie temperature (T (C)) for the L1(0)-type FePt phase was separately evaluated using alloy films. The obtained mean T (B), mean T (B)/T (C), and Delta T (B) for granular films with SnO GBM were 620 K, 0.83 K, and 200 K, respectively, while for granular films with TiO2 GBM, they were 450 K, 0.61 K, and 260 K, respectively. Based on these values, mean T (B), mean T (B)/T (C), and Delta T (B) were calculated assuming a relaxation time of 2 x 10(-7) s, which corresponds to HAMR writing time. For SnO GBM film, these values were 737 K, 0.98 K, and 24 K, respectively, and for TiO2 GBM film, they were 685 K, 0.93 K, and 72 K, respectively. These results for granular films can be useful for designing a hard disk drive with HAMR.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Sadhana Singh, Dileep Kumar
Summary: The magnetization reversal of the soft ferromagnetic FeCo layer coupled to the hard FePt layer in the FePt/FeCo bilayer was studied in-situ by increasing the thickness of the FeCo layer. Magneto-optical Kerr effect measurements showed the presence of exchange bias (EB) in the hysteresis loops, which decreased with increasing thickness of the FeCo layer. The EB is attributed to the combined effect of magnetostatic coupling and interfacial exchange interaction.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hao Zhou, Mojgan Kouhnavard, Sungyoon Jung, Rohan Mishra, Pratim Biswas
Summary: This study focuses on the aerosol synthesis of a semiconducting double perovskite oxide KBaTeBiO6, investigating its formation mechanism, purity, particle size control, and photocatalytic performance for CO2 photoreduction. The research demonstrates the successful synthesis of highly pure KBaTeBiO6 nanoparticles through a single-step furnace aerosol reactor process, showing promising results for CO2 photoreduction with a high CO production rate and quantum efficiency.
Article
Chemistry, Multidisciplinary
Dong Zhao, Ling Chang, Xiaoyang Wang, Kexin Liu, Qunshou Wang, Zhimeng Sun, Chuanzhi Liu, Jianjun Wang, Qiang Wang, Wenli Pei
Summary: In this work, L1(0)-FePt nanoparticles with high coercivity and ordering degree were successfully synthesized by adding Ag. The evolution process of Ag in the ordering transition was investigated, and it was found that the diffusion of Ag played a significant role in the ordering rearrangement of Fe and Pt atoms, resulting in the formation of a highly ordered structure.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Energy & Fuels
Shijie Zheng, Yan Qian, Xuebin Wang, Milan Vujanovic, Yingjia Zhang, Zia Ur Rahman, Penghui Yang, Fei Duan, Houzhang Tan, Amir De Toni, Yang Li, Hrvoje Mikulcic
Summary: This study investigated the pyrolysis and oxidation processes of DMF and the use of NH3-SNCR method to control NOx emissions. The results showed that NH3-SNCR had a significant deNOx effect in the industrial incineration of DMF at temperatures between 825-875 degrees Celsius, but it was not effective in limiting N2O emissions at the same time.
Article
Pharmacology & Pharmacy
Ernesto R. R. Soto, Charles A. A. Specht, Chrono K. K. Lee, Stuart M. M. Levitz, Gary R. R. Ostroff
Summary: This paper describes a new method of encapsulating His-tagged vaccine antigens using GP-Ni as a delivery vehicle, allowing for one-step binding and targeted delivery to antigen-presenting cells. The efficacy of this approach was demonstrated using Cda2 cryptococcal antigens in a mouse infection model, showing comparable results to a previous method utilizing MSA and yeast RNA trapping of Cda2 in GPs.
Article
Engineering, Environmental
Hongyang Zhang, Yingjie Sun, Zhao Chen, Weigao Wang, Qiwei Wang, Shuming Chen, Yuqing Xu, Wai-Yeung Wong
Summary: Solution processing of OLEDs is an attractive approach due to its low cost and accessibility to a variety of materials. This study focuses on the fabrication of high-performance deep red and NIR OLEDs using evaporation and solution processing methods. The devices achieved high maximum external quantum efficiencies and the effects of functional substituents and p-pi conjugation on the optoelectronic properties were investigated. This research provides new insights into developing efficient OLEDs based on Ir(III) complexes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yalei Wang, Jun Song, Wai-Yeung Wong
Summary: Researchers report an alternately stacked MOF/MX heterostructure with a 2D sandwich-like structure that exhibits abundant active sites, improved electrical conductivity, and exceptional structural stability. The study reveals a reversible intercalation mechanism of zinc ions and high electrical conductivity in the 2D heterostructure. Electrochemical tests confirm excellent rate performance and long-term cycling stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Physics, Applied
Jing Ming Liang, Xu Wen Zhao, Yu Kuai Liu, Pei Gen Li, Sheung Mei Ng, Hon Fai Wong, Wang Fai Cheng, Yan Zhou, Ji Yan Dai, Chee Leung Mak, Chi Wah Leung
Summary: The magnetization reversal of terbium iron garnet (TbIG) thin films at different temperatures was studied using anomalous Hall effect measurements. The compensation temperature (T-comp) of TbIG thin films was determined and the effect of film thickness on T-comp was investigated. The results showed that T-comp increases with decreasing film thickness. Two possible origins for this behavior were proposed, including interfacial element diffusion and strain effects between TbIG films and Gd3Ga5O12 substrates. These findings have implications for the study of spintronic devices based on ultrathin rare-earth iron garnet thin films.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Shuyun Wang, Haipeng Wang, Shengmei Chen, Ka Kiu Keith Cheung, Hon Fai Wong, Chi Wah Leung, Juan Antonio Zapien
Summary: In order to meet the increasing demand for clean energy storage in modern society, efficient and low-cost electrocatalysts are required. In this study, a simple two-step method was used to directly prepare NiFe-LDH on a NiFe foam substrate, resulting in a sample (NiFe-20-H) with excellent oxygen evolution reaction performance and long-term stability in alkaline electrolyte.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Yun Ma, Diankun Zhang, Wen Lv, Qiang Zhao, Wai-Yeung Wong
Summary: Fluorescence microscopy imaging is essential for visualizing morphological details in tissue with subcellular resolution. Heavy-metal complex based probes, especially iridium(III) solvato complexes, offer unique advantages for live cell imaging due to their excellent photophysical properties. In this study, seven water soluble cationic iridium(III) complexes were designed and synthesized for live cell imaging, with tunable emission colors from green to red. The use of these complexes enables multicolor phosphorescent imaging and various advanced imaging techniques like two-photon excited imaging and fluorescence lifetime imaging microscopy.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Danjun Liu, Yunxia Wang, Qiang Zhang, Ye Ming Qing, Yaorong Wang, Haitao Huang, Chi Wah Leung, Dangyuan Lei
Summary: This research presents a photoswitchable molecule-sandwiched metallic particle-on-film nanocavity that can achieve light-controlled linear and nonlinear optical tuning. It has the potential for developing miniaturized integrated optical circuits for ultrafast all-optical information processing and communication.
Article
Physics, Applied
Jing Ming Liang, Xu Wen Zhao, Xin Yuan, Yu Kuai Liu, Sheung Mei Ng, Hon Fai Wong, Pei Gen Li, Yan Zhou, Fu Xiang Zhang, Chee Leung Mak, Chi Wah Leung
Summary: This study provides a detailed investigation on the interlayer antiferromagnetic coupling and magnetization reversal behavior in rare-earth iron garnet bilayers under different factors such as temperature, crystallographic orientation, and layer thickness. The interlayer coupling strength was calculated by measuring the minor magnetic hysteresis loops. The results offer important insights for future research on interlayer antiferromagnetic coupling phenomena and the potential use of rare-earth garnet bilayers to manipulate magnetic properties for spintronics studies and other applications.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Organic
Biquan Xiong, Lulu Si, Longzhi Zhu, Yu Liu, Weifeng Xu, Ke-Wen Tang, Shuang-Feng Yin, Peng-Cheng Qian, Wai-Yeung Wong
Summary: A copper-catalyzed aerobic oxidative/decarboxylative phosphorylation of aryl acrylic acids with P(III)-nucleophiles via the Michaelis-Arbuzov rearrangement is reported. The reaction can be carried out effectively without the use of a ligand and a base. Various aryl acrylic acids and P(III)-nucleophiles are compatible in this transformation, providing β-keto-organophosphorus compounds with good to excellent yields. The possible mechanism and kinetic studies show that this transformation may proceed through second-order chemical kinetics and involves a radical process.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Qiwei Wang, Lu Jiang, Wai-Yeung Wong
Summary: 2,1,3-Benzothiadiazole (BT) and its derivatives play a crucial role in the development of photofunctional compounds and organic optoelectronic devices. The construction of molecules with a BT core can enhance the electronic properties of organic materials. In this study, novel organometallic acetylide polymers bridged by bis(fluorenyl)-benzothiadiazole were synthesized and their photophysical, thermal, and electrochemical properties were investigated.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Zhenjia Huang, Gary Chi-Pong Tsui, Ka-Wai Yeung, Chun Li, Chak-Yin Tang, Mo Yang, Miao Zhang, Wai-Yeung Wong
Summary: 4D printed photo-triggered liquid crystal elastomers (LCEs) microactuators by direct laser writing via two-photon polymerization (DLW-TPP) have gained attention for their manipulation flexibility and reversible and rapid actuation capabilities. However, the lack of room-temperature printable liquid crystal (LC) photoresists has hindered their development. In this study, we developed new light-responsive LC photoresists by incorporating novel conjugated polymers (CPs) as photothermal agents for DLW-TPP technology. The CPs exhibited a remarkable photothermal effect and solved aggregation problems typically seen with inorganic nanoparticles in photoresists.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Govardhana Babu Bodedla, Muhammad Imran, Jianzhang Zhao, Xunjin Zhu, Wai-Yeung Wong
Summary: In this study, TPE-ZnPF was successfully synthesized and characterized by single-crystal X-ray diffraction. TPE-ZnPF aggregates exhibit long-lived photoexcited states, and enhance emission intensity through suppression of non-radiative decay channels. Moreover, TPE-ZnPF aggregates show more efficient light-harvesting ability, well-defined nanosphere morphology, and more efficient photoinduced charge separation compared to Ph-ZnPF aggregates. As a result, TPE-ZnPF aggregates demonstrate an excellent photocatalytic hydrogen evolution rate of 56.20 mmol g(-1) h(-1), which is 94-fold higher than that of Ph-ZnPF aggregates without TPE groups.
Article
Chemistry, Inorganic & Nuclear
Rashid Ilmi, Xiaofang Li, Nawal K. Al Rasbi, Liang Zhou, Wai-Yeung Wong, Paul R. Raithby, Muhammad S. Khan
Summary: Two new organo-europium complexes were synthesized and characterized, and they were used to fabricate red organic light emitting diodes. Exceptional device performance was achieved through device engineering optimization.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Rashid Ilmi, Xiaofang Li, Nawal K. Al Rasbi, Liang Zhou, Wai-Yeung Wong, Paul R. Raithby, Muhammad S. Khan
Summary: Two new organo-europium complexes have been successfully synthesized and characterized. These complexes exhibit strong red emissions in the solid state with high photoluminescence quantum yields. They were used as dopants in the emitting layer of red organic light emitting diodes, resulting in exceptional overall performance through device engineering.
DALTON TRANSACTIONS
(2023)
Review
Chemistry, Physical
Shujie Liang, Hong Deng, Zhi Zhou, Wai-Yeung Wong
Summary: This article summarizes important synthesis strategies of Graphdiyne (GDY) and GDY-based materials, elaborates on modifications to regulate the structure and properties of GDY, and highlights recent achievements in energy and environmental applications in photocatalysis. Furthermore, the challenges and potential developments of GDY in catalytic research are discussed.
Review
Chemistry, Multidisciplinary
Leon Li-Min Zhang, Wai-Yeung Wong
Summary: This review summarizes the progress and potential applications of atomically precise CuNCs, highlighting their attractive properties and versatility in different fields.
Article
Materials Science, Multidisciplinary
Mengjiao Dong, Liyun Liao, Chensheng Li, Yingxiao Mu, Yanping Huo, Zhong-Min Su, Fushun Liang
Summary: This study investigates the influence of the polarity of polymer matrices on persistent room-temperature phosphorescence (pRTP). It is discovered that intense phosphorescence emission can be achieved in highly polar matrices such as polyacrylic acid (PAA). The dipole-dipole interaction between the polar fluorophore and polar matrix is proposed to stabilize the excited state and facilitate the generation of efficient room-temperature phosphorescence emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Han-Jiang Yang, Weijia Xiang, Xiangzhou Zhang, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Summary: This article reports a 2D copper(I)-based cluster material for X-ray imaging, which exhibits ultra-high spatial resolution, high photoluminescence efficiency, and low detection limit. The material shows excellent linear response to X-ray dose rates and light output, and has the best spatial resolution among reported lead-free metal halide hybrids.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Review
Materials Science, Multidisciplinary
Taek Joon Kim, Sang-hun Lee, Dayeong Kwon, Jinsoo Joo
Summary: Donor-acceptor heterostructures using organic-inorganic halide perovskites, two-dimensional transition metal dichalcogenides, pi-conjugated organic small/macro molecules, and quantum dots are promising platforms for exciton-based photonics and optoelectronics. Hetero-interlayer excitons and hetero-intermolecular excitons formed through optical and/or electrical charge transfer in various heterostructures are important quasi-particles for light emission, detection, and harvesting systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Liemao Cao, Xiaohui Deng, Zhen-kun Tang, Rui Tan, Yee Sin Ang
Summary: We investigate the interface properties between WSi2N4 and Mo2B, O-modified Mo2B, and OH-modified Mo2B nanosheets. We find that WSi2N4 and Mo2B form n-type Schottky contacts, while functionalizing Mo2B with O and OH leads to the formation of both n-type and p-type ohmic contacts with WSi2N4. Additionally, we demonstrate the emergence of quasi-ohmic contact with ultralow lateral Schottky barrier and zero vertical interfacial tunneling barriers in Mo2B(OH)2-contacted WSi2N4.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ga Eun Kim, Hae-Jin Kim, Heesuk Jung, Minwoo Park
Summary: This study presents a solution to the commercialization challenges of flexible LEDs based on MAPbBr(3) by incorporating polyurethane and an In-Ga-Zn-Sn liquid alloy. The designed devices showed high flexibility, efficiency, and durability, with improved electron injection and reduced defects, making them promising for next-generation displays.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tao Shen, Zeng Wu, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Summary: Sidechain engineering is an important molecular design strategy for tuning the solid-state packing and structural ordering of conjugated polymers. The effects of sidechain direction on the optoelectronic properties of polymers and device performance were systematically investigated in this study. The results demonstrate that tuning the sidechain substitution direction can effectively improve the molecular structure and light absorption properties of polymers, providing new insights for the rational design of functional polymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Lotte Clinckemalie, Bapi Pradhan, Roel Vanden Brande, Heng Zhang, Jonathan Vandenwijngaerden, Rafikul Ali Saha, Giacomo Romolini, Li Sun, Dirk Vandenbroucke, Mischa Bonn, Hai I. Wang, Elke Debroye
Summary: In this study, a facile strategy using a non-conductive polymer was proposed to fabricate stable, pinhole-free thick films. The effect of introducing a second phase into CsPbBr3 perovskite crystals on their photophysical properties and charge transport was investigated. The dual phase devices exhibited improved stability and more effective operation at higher voltages in X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jingye Zou, Shenglan Hao, Pascale Gemeiner, Nicolas Guiblin, Omar Ibder, Brahim Dkhil, Charles Paillard
Summary: When rare-earth ions are embedded in a ferroelectric material, their photoluminescence can serve as an all-optical probe for temperature, electric field, and mechanical stimulus. However, the impact of ferroelectric phase transitions on photoluminescence is not well understood. In this study, we demonstrate changes in the photoluminescence of green emission bands during critical ferroelectric transitions in an Er-doped BaTiO3 material. We also find that the intensity ratio and wavelength position difference of sub-peaks provide information on the phase transitions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jiangchao Han, Daming Zhou, Wei Yang, Chen Lv, Xinhe Wang, Guodong Wei, Weisheng Zhao, Xiaoyang Lin, Shengbo Sang
Summary: Rare type-II spin-gapless semiconductors (SGSs) have attracted increasing attention due to their unique spin properties. In this study, the interface contacts and spin transport properties of different devices composed of VSi2P4 ferromagnetic layers were investigated. The results show that VSi2P4 is a promising material for designing vertical van der Waals heterostructures with a giant tunnel magnetoresistance (TMR) in spintronic applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tianqi Zhao, Renagul Abdurahman, Qianting Yang, Ruxiangul Aiwaili, Xue-Bo Yin
Summary: In this study, we designed and prepared Cr and Ba-doped gamma-Ga2O3 nanoparticles to achieve near-infrared emission and enhance the emission intensity. The emission mechanism was proposed based on the trap depth, band gap, and energy levels of Cr ions. The ratiometric temperature sensing and encryption information transfer demonstrated the potential applications of this technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Shuvankar Gupta, Jyotirmoy Sau, Manoranjan Kumar, Chandan Mazumdar
Summary: In this study, a new spin-gapless semiconductor material CoFeMnSn is reported, and its stable structure and spin-polarized band structure are determined through experimental realization and theoretical calculations. The compound exhibits a high ferromagnetic transition temperature, making it excellent for room temperature applications. The nearly temperature-independent resistivity, conductivity, and carrier concentration of the compound, adherence to the Slater-Pauling rule, and the high intrinsic anomalous Hall conductivity achieved through hole doping further confirm its spin-gapless semiconductor nature. Additionally, the compound's SGS and topological properties make it suitable for spintronics and magneto-electronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ikumi Aratani, Yoji Horii, Yoshinori Kotani, Hitoshi Osawa, Hajime Tanida, Toshiaki Ina, Takeshi Watanabe, Yohko F. Yano, Akane Mizoguchi, Daisuke Takajo, Takashi Kajiwara
Summary: In this study, two-dimensional arrays of single-molecule magnets (SMMs) based on metal-organic frameworks (MOFs) were systematically modified through Langmuir-Blodgett methods and chemical modifications. The introduction of bulky alkoxide groups induced structural changes and perpendicular magnetic anisotropy. This research provides a promising strategy for the construction of high-density magnetic memory devices using molecular spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Zonghao Lei, Houhe Dong, Lijie Sun, Bing Teng, Yanfei Zou, Degao Zhong
Summary: Researchers have successfully developed four different up-conversion phosphors based on the Eulytite-type host Ba3Yb(PO4)(3). The optical temperature sensing properties of these phosphors were thoroughly investigated, and it was found that Ba3Yb(PO4)(3):Tm/Er/Ho showed potential for optical temperature measurement applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
C. Roncero-Barrero, M. A. Carvajal, J. Ribas-Arino, I. de P. R. Moreira, M. Deumal
Summary: This study computationally investigates the conductivity of four isostructural compounds with different Se contents, and reveals the parameters that define their conductivity in stable organic radical materials. The results provide insights into the influence of Se content on the conductivity and highlight the importance of considering multiple parameters in understanding the trends in conductivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
