Article
Nanoscience & Nanotechnology
Kang Wang, Takashi Taniguchi, Kenji Watanabe, Jiamin Xue
Summary: Two-dimensional semiconductors show great potential as channel materials for field-effect transistors. Unlike traditional three-dimensional semiconductors, their surface with saturated chemical bonds maintains excellent properties even at monolayer thickness. However, the edges of these materials, which often go unnoticed, have important effects on devices. This study demonstrates that the edges of exfoliated and etched MoS2 are naturally p-type doped and can form p-n junctions with the bulk of the flake, which can be utilized to create rectifying or optoelectronic devices without the need for external doping.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Yinqi Wang, Xiaoyue Wang, Junsong Peng, Ming Yan, Kun Huang, Heping Zeng
Summary: This paper demonstrated a series of short-living mode-locking states in a fiber laser before reaching a steady state, revealing the transient dynamics related to pump power, gain depletion, and recovery. The unexpected transient lasing behaviors of a soliton laser were uncovered, providing insights into the complex dynamics of mode-locked lasers.
CHINESE OPTICS LETTERS
(2021)
Article
Instruments & Instrumentation
Tiegang Guo, Zhaokun Wang, Changyu Shen, Chunliu Zhao, Xuebin Zhang
Summary: In this study, wavelength-tunable spatiotemporal mode locking was achieved in a partial multimode fiber laser with a linear cavity. The interaction between different solitons was found to have a notable impact on the beam distribution of the multimode solitons. Furthermore, a spatial instability for the spatiotemporal mode locking conventional solitons was observed within a certain pump power range.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Article
Optics
Song Yang, Qian-Yun Zhang, Zhi-Wei Zhu, Yao-Yao Qi, Peng Yin, Yan-Qi Ge, Li Li, Lei Jin, Ling Zhang, Han Zhang
Summary: This review discusses the generation and propagation mechanisms of dark solitons in fiber lasers, and summarizes the recent progress in this field. Dark solitons have wide applications in areas such as optics communication, optics sensing, and nonlinear optics.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Yaoyao Qi, Song Yang, Jingjing Wang, Li Li, Zhenxu Bai, Yulei Wang, Zhiwei Lv
Summary: Ultrafast fiber lasers play important roles in various fields such as laser communications, ultra-precision manufacturing, and biomedical diagnostics. Optical vector solitons, especially those generated with low-dimensional materials, have attracted significant attention due to their wide range of applications in laser sensing and light control technology. The recent advances in vector solitons using low-dimensional materials as saturable absorbers in fiber lasers are reviewed, emphasizing material types, unique characteristics, and preparation methods.
MATERIALS TODAY PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Tianhao Xian, Wenchao Wang, Wenyan Zhang, Li Zhan
Summary: By introducing a non-equilibrium saturable absorber into the laser cavity, a new pulse dynamics capable of generating time-stretched dissipative solitons has been demonstrated. The stable nanosecond pulses with exact sech shape can be used as a pump source for optical parametric oscillators, showing potential applications in optical communication, material processing, and biomedicine technology.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Junsong Peng, Mariia Sorokina, Heping Zeng
Summary: Mode-locked lasers emit ultrashort pulses in a narrow parameter space but often experience instabilities like soliton explosions and noise-like pulsing. By using mutual information analysis, it is found that noise-like pulses are generally correlated and some even exhibit high degrees of correlation, challenging the previous assumption of stochastic radiation.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Optics
Ying'an Chen, Yicheng Zhou, Zhipeng Qin, Guoqiang Xie, Peng Yuan, Jingui Ma, Liejia Qian
Summary: This paper demonstrates the first experimental realization of a spatiotemporally mode-locked soliton laser in mid-infrared fluoride fiber, achieving a record pulse energy of 16.1 nJ and peak power of 74.6 kW at 2.8 mu m wavelength. This work extends the spatiotemporal mode-locking to soliton fiber lasers and should be of wide interest for the laser community.
HIGH POWER LASER SCIENCE AND ENGINEERING
(2023)
Article
Optics
Tiegang Guo, Zhaokun Wang, Feng Gao, Chunliu Zhao, Shuo Chang, Xuebin Zhang, Ruisi Li
Summary: This paper reports the experimental observations of diverse structural multimode (MM) soliton molecules in an all fiber spatiotemporal mode-locked (STML) laser. Different soliton structures such as soliton triplet, soliton quartet, soliton quintet, and compound soliton are achieved by adjusting the intracavity devices. The transverse mode distributions for different soliton molecule complexes differ from each other.
OPTICS COMMUNICATIONS
(2022)
Article
Optics
Yusong Liu, Yiyang Luo, Ran Xia, Yang Xiang, Wenjun Ni, Siyun Huang, Zhijun Yan, Qizhen Sun, Perry Ping Shum, Xiahui Tang
Summary: This study reports on the real-time internal motions of harmonically mode-locked soliton molecules in a fiber laser controlled by nonlinear polarization rotation, revealing various real-time scenarios towards multi-pulse states, and demonstrating the interactions and energy flow between soliton molecules.
OPTICS COMMUNICATIONS
(2021)
Article
Optics
Qimeng Lin, Li Yan, Yuanqi Song, Xuzhuo Jia, Xiaoqiang Feng, Lei Hou, Jintao Bai
Summary: This study demonstrated the switchable single- and dual-wavelength femtosecond soliton generation in Er-doped fiber lasers using GO-COOH saturable absorbers for the first time. By adjusting the pump power, dual-wavelength solitons can be obtained at 1531.9 nm and 1555.2 nm. The experimental results showed the great potential of GO-COOH in ultrafast fiber lasers as broadband SAs.
CHINESE OPTICS LETTERS
(2021)
Article
Optics
Nurul Athirah M. A. Ghafar, Nur Farhanah Zulkipli, Ahmad Haziq A. Rosol, A. H. Zaidan, Y. G. Y. Yhuwana, Arni Munira Markom, Moh Yasin, Sulaiman Wadi Harun
Summary: Picosecond laser pulses are generated by utilizing the saturable absorption of Vanadium Aluminum Carbide (V2AlC) MAX phase as a mode-locker in an Erbium-doped fiber laser (EDFL) cavity. The V2AlC-PVA film functions as a saturable absorber (SA) and successfully produces a highly stable soliton pulse operating at 1560 nm wavelength.
Article
Physics, Multidisciplinary
Heze Zhang, Dong Mao, Yueqing Du, Chao Zeng, Zhipei Sun, Jianlin Zhao
Summary: Researchers have successfully created heteronuclear multicolor soliton compounds composed of chirp-free conventional solitons and chirped dissipative solitons in mode-locked fiber lasers by introducing convex-concave frequency phases. Despite different lasing wavelengths, the dissipative solitons always overlapped with the conventional solitons, resulting in modulated wavepackets. The resonant sidebands of the two solitons followed the same phase-matching principle determined by the absolute value of cavity dispersion. Experimental results were fully substantiated by simulations, confirming that the overlapping of two solitons was dominated by the co-action of saturable absorption and group-delay compensation. It was demonstrated that the phase-managed dissipative system could support multicolor soliton compounds with distinct properties, providing an effective platform to study the interaction of dissimilar nonlinear wavepackets.
COMMUNICATIONS PHYSICS
(2023)
Article
Optics
Cong Zhang, Hongwei Chu, Zhongben Pan, Han Pan, Shengzhi Zhao, Dechun Li
Summary: Single-crystalline square BiOCl nanosheets with oxygen vacancies were synthesized via a simple solvothermal route. These nanosheets were then deposited on a tapered microfiber to act as a saturable absorber. By interacting with the BiOCl saturable absorber, a soliton mode-locked Er-doped fiber laser was successfully demonstrated, producing ultrafast pulses with a pulse duration of 990 fs, a central wavelength of 1563 nm, and a FWHM bandwidth of 3.2 nm. The signal-to-noise ratio reached 36 dB at a fundamental repetition rate of 7.9 MHz.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Physical
H. T. Zheng, Y. C. Zhang, X. He, H. H. Liu, A. Y. Chen, X. F. Xie
Summary: This study developed MoS2/PVA hydrogels with rapid self-healing properties by utilizing the excellent photothermal conversion effect of MoS2 under near-infrared light. The effects of microstructure and MoS2 content on the self-healing and mechanical properties of the hydrogels were investigated. The hydrogels exhibited significant self-healing function, increased tensile strength and ductility when modified with flower-like MoS2 spheres at a content of 0.5 wt%. The addition of flower-like MoS2 spheres into the PVA network also significantly enhanced the fracture strength of the hydrogel.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
Huai-Yung Wang, Chih-Hsien Cheng, Borching Su, Gong-Ru Lin
Summary: A 28-GHz millimeter-wave-over-fiber (MMWoF) link is created by using a dual-wavelength vertical cavity surface emitting laser (VCSEL) encoded with novel quadrature amplitude modulation generalized frequency division multiplexing (QAM-GFDM) modulation schemes, allowing the fusion of a long-reach single-mode-fiber wired network and a beyond fifth-generation (B5G) mobile wireless network without the need for localized synthesizer and mixer. The optimized electrical-to-electrical 5-GHz 64-QAM-GFDM link achieves an error vector magnitude (EVM) of 3.04%, a signal-to-noise ratio (SNR) of 30.3 dB, and a bit error ratio (BER) of 2.1x10(-13). The wireless transmission via horn antenna pair achieves a maximal bandwidth of 2 GHz and a data rate of 4 Gbit/s for the received 4-QAM GFDM data.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
J. I. N. F. E. N. Hong, J. I. N. H. A. I. Zou, Y. U. S. H. U. Wang, Q. I. U. J. U. N. Ruan, T. I. N. G. T. I. N. G. Chen, Y. A. N. G. Cheng, Y. I. K. U. N. Bu, Z. H. E. N. G. Q. I. A. N. Luo
Summary: We present a compact continuous-wave all-fiber cyan laser, which achieves downconversion cyan lasing at 491.5 nm with a maximum output power of 97.5 mW, a slope efficiency of 23.7%, and a power fluctuation of less than 0.41%. This all-fiber cyan laser has great significance in expanding the color reproduction range of laser displays and has potential applications in fluorescence imaging, underwater communication, and detection.
Article
Optics
Hang Wang, Yadi Yang, Jinfen Hong, Xin Zhou, Qiujun Ruan, Zhipeng Dong, Mikhail Melkumov, Sergey Firstov, Alexey Lobanov, Zhengqian Luo
Summary: In this study, we demonstrate a dissipative soliton resonance (DSR) in a bismuth-doped phosphosilicate fiber (Bi-PSF) laser operating at dual-wave bands of 1.3/1.4 μm. By utilizing a homemade Raman fiber laser at 1239 nm as the pump source and a non-linear amplifying loop mirror for initiating mode-locking, stable DSR operation is achieved at the wavelengths of 1343 nm and 1406 nm with large spectral bandwidths. This work opens up opportunities for various applications, including all-spectral-band communications, bio-medical imaging, and terahertz difference frequency generation.
Article
Materials Science, Multidisciplinary
Meng-Cheng Yen, Chia-Jung Lee, Yung-Chi Yao, Yuan-Ling Chen, Sheng-Chan Wu, Hsu-Cheng Hsu, Yuto Kajino, Gong-Ru Lin, Kaoru Tamada, Ya-Ju Lee
Summary: Constructing polaritonic devices with monolayer-featured exciton-emitters in ultra-compact photonic architectures is essential for exploring the potential applications of optical nonlinearities, macroscopic condensations, and superfluidity. In this study, a feasible strategy for exciton-polariton formations is demonstrated by implementing a Tamm-plasmon polaritonic device with single-monolayered perovskite quantum dots. The metallic character of the device allows for a highly confined resonance mode that strongly overlaps with the embedded quantum dots, resulting in enhanced light-matter coupling. The dispersion relation and polariton-polariton interaction energy of the device can be tuned, making it a determinant step towards strong light-matter coupling and polariton spintronics.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Optics
Tianran Li, Ziyu Wang, Jinhai Zou, Jinfen Hong, Qiujun Ruan, Hang Wang, Zhipeng Dong, Zhengqian Luo
Summary: This study demonstrates, for the first time, the direct generation of millijoule-level green pulses from a fiber laser, overcoming the limitations of near-IR laser frequency conversion and providing a model for compact, high-efficiency, and high-energy visible fiber pulsed lasers.
PHOTONICS RESEARCH
(2023)
Article
Optics
Liquan Zhu, Zhipeng Dong, Jinhai Zou, Linxiao Deng, Ting Li, Yuantong Chen, Chun Gu, Lixin Xu, Zhengqian Luo
Summary: This study investigates the use of optical fiber lasers in display systems by integrating a Pr3+-doped green all-fiber laser into a laser projection display system. A 520 nm semiconductor green laser diode module was integrated as a control group for comparison. The color gamut and speckle performances were studied and compared. The experimental group showed slightly better performance in color gamut volume, and the speckle contrast rapidly decreased with increasing power. This study is the first to apply a fiber laser to a laser display system, providing insights for developing speckle-free or speckle-reduced laser display systems.
Article
Engineering, Electrical & Electronic
Zhipeng Dong, Hang Wang, Wencheng Jia, Jinhai Zou, Zhengqian Luo
Summary: In this study, a 488 nm blue picosecond pulse was generated by frequency doubling a homemade 977 nm picosecond fiber laser. The original laser had a 977.84 nm central wavelength, 0.13 nm spectral width, 12.94 ps pulse duration, 76.09 MHz repetition rate, and 5.12 mW average power. After scaling up the power to 2.06 W, the pulse duration and spectral width slightly increased to 16.84 ps and 0.24 nm, respectively. The blue picosecond laser achieved a central wavelength of 488.92 nm and a linewidth of 0.17 nm. This compact and high-power laser has potential applications in high-resolution imaging, underwater detection, and material processing.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Chi-Cheng Yang, Chih-Hsien Cheng, Ting-Hui Chen, Yung-Hsiang Lin, Jr-Hau He, Din-Ping Tsai, Gong-Ru Lin
Summary: Amorphous-Ge (a-Ge) or free-standing nanoparticles (NPs) synthesized via hydrogen-free plasma-enhanced chemical vapor deposition (PECVD) can be used as transmissive or reflective saturable absorbers to start up passively mode-locked erbium-doped fiber lasers (EDFLs). The a-Ge film can serve as a saturable absorber for self-starting EDFL pulsation, while the Ge-NP-on-Au (Ge-NP/Au) films can act as a reflective-type saturable absorber for broadened pulsewidth under high-gain operation. Both the a-Ge film and free-standing Ge NP exhibit potential as transmissive and reflective saturable absorbers, respectively, for ultrafast fiber lasers.
Article
Optics
Yu-Hong Lin, Chih-Hsien Cheng, Cheng-Ting Tsai, Wei-Li Wu, Kent D. Choquette, Gong-Ru Lin
Summary: This study analyzes the transmission performance of bit-loaded quadrature amplitude modulation-orthogonal frequency division multiplexing (QAM-OFDM) encoding and photonic-crystal-engineered multi-mode vertical-cavity surface-emitting lasers (MM-VCSELs). Different surface photonic-crystal designs are used to configure the MM-VCSELs, reducing modal dispersion during OM5-MMF transmission. Comparing the original MM-VCSEL with the photonic-crystal-configured MM-VCSELs, the data rate and transmission performance can be significantly increased.
Article
Engineering, Electrical & Electronic
Bo-Yuan Lee, Chih-Hsien Cheng, Cheng-Ting Tsai, Huang-Shen Lin, Shih-Chun Kao, Patrick Chiang, Hsiang-Chieh Lee, Tien-Tsorng Shih, Hao-Chung Kuo, Gong-Ru Lin
Summary: A silicon (Si) Mach-Zehnder modulator (MZM) is used for 10-km SMF Link at C-band (1550 nm) to enable 50 GBaud (100 Gbit/s) per channel pre-emphasized 4-level pulse amplitude modulation (PAM-4) data transmission. The PAM-4 data is encoded onto the Si MZM, compensating for channel dispersion-induced power fading. The Si MZM device exhibits lower power consumption and circuit complexity, making it suitable for 50-GBaud PAM-4 data applications between data centers.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Hang Wang, Ziyu Wang, Wencheng Jia, Luming Song, Tingting Chen, Jinhai Zou, Zhipeng Dong, Zhengqian Luo
Summary: A 978 nm ultrafast fiber laser was demonstrated with a robust all-polarization-maintaining mode-locking using a phase-biased nonlinear amplifying loop mirror. It achieved a stable self-starting mode-locking with an average output power of 2.12 W. The laser was further amplified and used for second harmonic generation, producing a 489 nm ultrashort laser.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2023)
Article
Optics
Hang Wang, Wencheng Jia, Yongjia Yao, Xinyun Yang, Mikhail Melkumov, Sergey Firstov, Alexey Lobanov, Zhipeng Dong, Zhengqian Luo
Summary: In this study, a 1.3/1.4μm random fiber laser (RFL) was successfully generated using bismuth-doped phosphosilicate fiber. The RFL showed excellent long-term operational stability and a wide emission spectrum. Compared to traditional laser sources, the RFL reduced the speckle contrast of images.
CHINESE OPTICS LETTERS
(2023)
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)
