Article
Physics, Multidisciplinary
Shuang-Long Yang, De-Zheng Yang, Yu Miao, Cun-Xu Gao, De-Sheng Xue
Summary: This study investigated the anisotropic magnetoresistances in single crystalline Co(6 nm)/SrTiO3(001) heterostructures, revealing anomalous AMR phenomena and proposing a crystal symmetry-adapted model to explain it.
Article
Materials Science, Multidisciplinary
Jia Xu, Mengwen Jia, Chao Zhou, Qian Li, Padraic Shafer, Gong Chen, Mengmeng Yang, Alpha T. N'Diaye, Elke Arenholz, Ziqiang Qiu, Yizheng Wu
Summary: The spin Hall magnetoresistance (SMR) effect in single-crystalline Pt/CoO(001) bilayers has been systematically investigated. X-ray magnetic linear dichroism measurements prove that CoO antiferromagnetic (AFM) spins can be switched into the direction orthogonal to the applied field. We find that the SMR signal is composed of two components related to either the switching of CoO AFM Neel order or the applied strong field effect. Both SMR components show a positive angular dependence. The observed positive SMR is mainly attributed to the uncompensated spins at the Pt/CoO interface.
Article
Engineering, Environmental
Tingting Chen, Yang Bai, Xiao Xiao, Huan Pang
Summary: A hydrothermal method was used to synthesize uniform single-crystal fl-Ni(OH)2 quasi-nanocubes for developing a stable aqueous Ni-Zn battery with good energy density. The nanosized fl-NQNCs enhanced the stability of the cathode and accelerated the charge transfer process. The battery exhibited excellent areal specific capacity, energy density, power density, and flexibility under bending.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Ruchi Tomar, Sonali Kakkar, Chandan Bera, S. Chakraverty
Summary: A two-dimensional electron gas at the interfaces of perovskite oxides has exhibited various emergent phenomena, including weak antilocalization, planar Hall effect, and anisotropic magnetoresistance. The (001)-oriented heterointerface shows a higher anisotropic magnetoresistance compared to the (111)-oriented heterointerface, with unique characteristics observed for both orientations. These phenomena can be linked to Fermi surface reconstruction due to orbital occupancy and polarization/hybridization.
Article
Engineering, Electrical & Electronic
Luiz G. Enger, Stephane Flament, Imtiaz N. Bhatti, Olivier Rousseau, Bruno Guillet, Marc Lam Chok Sing, Victor Pierron, Sylvain Lebargy, Sandeep K. Chaluvadi, Bernadette Domenges, Arturo Vera, Jose M. Diez, Isidoro Martinez, Ruben Guerrero, Lucas Perez, Maria T. Gonzalez, Rodolfo Miranda, Julio Camarero, Paolo Perna, Laurence Mechin
Summary: The current trend in magnetoresistive sensors development is to increase the sensitivity of single sensing elements by using multilayer structures and to design them into arrays. Here, single layer anisotropic magnetoresistive (AMR) sensors using low noise epitaxial La2/3Sr1/3MnO3 (LSMO) oxide thin films deposited on vicinal SrTiO3 substrates are reported. A good agreement between experimental data and the expected sensor response confirms the correct operation of the device. The study of fabrication parameters and their effects on film anisotropy field and device detectivity are also presented.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Multidisciplinary Sciences
Piotr Konieczny, Dominik Czernia, Takashi Kajiwara
Summary: The magnetocaloric effect was investigated in highly anisotropic single crystals of two single molecule magnets. It was found that the magnitude of the effect was greater when the magnetic field was applied perpendicular to the crystal structure. The rotating magnetocaloric effect was evaluated and found to have a high relative efficiency at moderate magnetic fields.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Multidisciplinary
Sanxuan Han, Jie Zhang, Xiaowei Lei, Ruining Yang, Nan Wang
Summary: It is unknown whether anisotropy affects the electro-chemical corrosion behavior of Ni-based single crystal superalloy in marine environment. This study reveals that the corrosion resistance increases in the order of (001) < (111) < (011), which is consistent with the sequence of film thickness. The passive films mainly contain W6+, Ta5+, Al3+, and Mo6+ oxides. The optimal performance of (011) surface is due to the thickest film and the highest fractions of W6+ and Al3+ oxides. These findings pave the way for orientation design of laser repaired superalloys to achieve optimal corrosion properties.
Article
Physics, Applied
Sk Jamaluddin, Subir Sen, Dola Chakrabartty, Ajaya K. Nayak
Summary: This study presents the finding of two types of distinct Hall signals in single crystalline Hall devices of a D-2d symmetric antiskyrmion host Mn-Ni-Ga sample. One is the topological Hall signal originating from the antiskyrmion phase, and the other is the two-component anomalous Hall effect arising due to the presence of twinning microstructure.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
M. Zarifi, P. Kameli, A. Ghotbi Varzaneh, H. Nikmanesh, H. Ahmadvand
Summary: The relationship between anisotropic magnetoresistance (AMR) and phase separation in LPCMO/NGO films was investigated in this study. It was found that by adjusting the annealing process and target substrate distance, the crystalline orientation of the films can be modified, leading to changes in the metal insulator transition (MIT) temperature and magnetoresistance (MR).
Article
Chemistry, Physical
Jehong Park, Jongsu Kim
Summary: A highly (113)-oriented Zn2SiO4:Mn2+ single-crystalline luminescent film was successfully fabricated on amorphous quartz glass without the need for a seed-crystal layer. The unique microstructure of the film was found to influence its luminescent behavior, offering potential applications in silicon-based optoelectronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xuanwei Zhao, Xianming Zheng, Ji Qi, Xiaohua Luo, Shengcan Ma, Sajjad Ur Rehman, Weijun Ren, Changcai Chen, Zhenchen Zhong
Summary: The antiferromagnetic HoNiGe3 single crystal grown by Ge flux method exhibits anisotropic magnetocaloric effect and magnetoresistance, with spin-flip and spin-flop transitions occurring along different orientations. The maximum magnetic entropy changes and refrigeration capacity show HoNiGe3 to be a promising candidate for novel rotating magnetic refrigeration at low temperatures.
Review
Chemistry, Physical
Lianshan Ni, Shu Zhang, Andi Di, Wentao Deng, Guoqiang Zou, Hongshuai Hou, Xiaobo Ji
Summary: This article reviews the development and application of Ni-rich layered oxide cathodes and compares the single-crystalline and polycrystalline Ni-rich cathodes. The advantages and debates of single-crystalline Ni-rich cathodes over polycrystalline Ni-rich cathodes are summarized, and improvement strategies and prospects are proposed.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Gang-Hua Deng, Yuqin Qian, Xia Li, Tong Zhang, Wei Jiang, Avetik R. Harutyunyan, Gugang Chen, Hanning Chen, Yi Rao
Summary: This study utilized polarized transient absorption microscopy and ab initio simulations to investigate the role of vibronic coupling in singlet fission in pentacene. The findings revealed that a 35.0 cm(-1) phonon with vibrational coherence greatly facilitates singlet fission, resulting in notable directional anisotropicity in the fission rate. Additionally, the coherence-preserving phonon drives the formation of a decoupled triplet dimer from a correlated triplet pair.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jinjin Zhao, Yingjie Zhao, Yangwu Guo, Xiuqin Zhan, Jiangang Feng, Yue Geng, Meng Yuan, Xin Fan, Hanfei Gao, Lei Jiang, Yongli Yan, Yuchen Wu
Summary: The study developed a capillary-bridge-manipulated strategy to fabricate perovskite microwire arrays with controlled geometry, pure orientation, and single crystallinity. Introducing chiral ammonium molecules allowed the microwire arrays to exhibit excellent second-order nonlinear optical properties.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Environmental
Lianshan Ni, Ruiting Guo, Wentao Deng, Baowei Wang, Jun Chen, Yu Mei, Jinqiang Gao, Xu Gao, Shouyi Yin, Huanqing Liu, Shu Zhang, Guoqiang Zou, Hongshuai Hou, Xiaobo Ji
Summary: This study successfully improved the structure stability and cycling durability of single-crystalline Ni-rich LiNi0.83Co0.11Mn0.06O2 cathode prepared by molten salt-assisted method, which showed superior capacity retention after 100 cycles. Moreover, increasing Ni fraction can effectively enhance the discharge capacity and energy density, but may lead to aggravated particle microcracking when Ni proportion is higher than 88%, affecting cycling performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Physics, Applied
C. Q. Liu, Y. B. Zhang, G. Z. Chai, Y. Z. Wu
Summary: The study reveals that the crystalline direction dependent Dzyaloshinskii-Moriya interaction in single crystal CoFeB(211)/Pt(110) films exhibits a clear 1/t(CFB) relationship, with significant differences in DMI strength along different crystal orientations and a large anisotropy ratio.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Multidisciplinary
Jia Xu, Jing Xia, Xichao Zhang, Chao Zhou, Dong Shi, Haoran Chen, Tong Wu, Qian Li, Haifeng Ding, Yan Zhou, Yizheng Wu
Summary: We experimentally demonstrate that the switching rate of the antiferromagnetic (AFM) domain can be significantly enhanced by more than 2 orders of magnitude through applying an alternating square-wave field on a Fe/CoO bilayer. This finding opens up new opportunities for designing antiferromagnet-based spintronic devices.
PHYSICAL REVIEW LETTERS
(2022)
Article
Multidisciplinary Sciences
Gong Chen, Colin Ophus, Alberto Quintana, Heeyoung Kwon, Changyeon Won, Haifeng Ding, Yizheng Wu, Andreas K. Schmid, Kai Liu
Summary: In this study, a novel approach of using hydrogen adsorption for writing and deleting skyrmions at room temperature was demonstrated. Through Monte-Carlo simulations, it was found that hydrogen-induced magnetic anisotropy change led to the creation and annihilation of skyrmions. Additionally, the effects of hydrogen and oxygen on magnetic anisotropy and skyrmion deletion on other magnetic surfaces were also explored.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Hong Xia, Haoran Chen, Changyeon Won, Haibin Zhao, Yizheng Wu
Summary: In this study, we investigated the propagation and emission of spin waves (SWs) in thin film systems with strong interfacial Dzyaloshinskii-Moriya interaction (DMI) using micromagnetic simulation. We found that DMI affects the propagation of SWs in a way analogous to the spin Doppler effect caused by the flow of magnetic medium, and this effect can be enhanced or suppressed by a spin-polarized current. Furthermore, by combining the interfacial DMI and the spin-polarized current, we demonstrated a continuous emission of SWs from a static source, providing a promising approach to generate SWs with tunable frequency.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Multidisciplinary Sciences
Junxue Li, Mina Rashetnia, Mark Lohmann, Jahyun Koo, Youming Xu, Xiao Zhang, Kenji Watanabe, Takashi Taniguchi, Shuang Jia, Xi Chen, Binghai Yan, Yong-Tao Cui, Jing Shi
Summary: Van der Waals heterostructures allow for integration of different materials with distinct properties, leading to novel physical phenomena. In this study, Li et al combine a quantum spin hall insulator, WTe2, with an insulating ferromagnet, Cr2Ge2Te6, resulting in induced magnetism in the WTe2 layer and anomalous Hall and Nernst effects. The proximity-induced ferromagnetic order in WTe2 manifests in various transport phenomena, and spin-polarized edge states are revealed in the magnetized quantum spin hall insulator.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Applied
Yawen Liu, Haoyu Liu, Wei Yuan, Yuhang Li, Junxue Li, Qiming Shao, Ran Cheng, Jing Shi
Summary: This study demonstrates highly efficient control of antiferromagnetic (AFM) magnon spins in heterostructures of yttrium iron garnet (YIG) and Cr2O3. By the interfacial exchange interaction exerted by YIG, the degeneracy between the AFM magnon modes in Cr2O3 is lifted, resulting in controlled spin polarization and spin current.
PHYSICAL REVIEW APPLIED
(2022)
Article
Chemistry, Multidisciplinary
Shunjia Wang, Wentao Qin, Sheng Zhang, Yuchen Lou, Changqin Liu, Tong Wu, Qiong He, Chuanshan Tian, Lei Zhou, Yizheng Wu, Zhensheng Tao
Summary: In this work, the authors demonstrate the realization of multifunctional spintronic-metasurface emitters, which allow simultaneous beam-steering and full polarization control of terahertz waves. The nanoengineered metasurface enables flexible control over the terahertz beam's spatial distribution and polarization states, offering a solution to the challenges associated with the growing variety of terahertz technology applications.
Article
Physics, Applied
J. He, Z. R. Zhao, H. Xia, T. Li, E. Liang, G. Ni, J. Wang, C. X. Sheng, L. Y. Chen, Y. Z. Wu, H. B. Zhao
Summary: We investigate the modulation of interlayer exchange coupling (IEC) between ferromagnet (FM) Fe and insulating antiferromagnet (AFM) CoO and its effect on Gilbert damping using a time-resolved magneto-optical Kerr effect technique. Inserting a wedge spin conductor Ag layer at the Fe/CoO interface reveals that the precession frequency and damping of the Fe film decrease with increasing Ag thickness, reaching intrinsic values above 2 nm where IEC is eliminated. The temperature dependence of the precession frequency and damping also follows a similar trend for attenuated IEC. These findings emphasize the crucial role of exchange coupling at the FM-AFM interface in spin angular momentum transfer and suggest implications for spintronic applications.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Hongyue Xu, Haoran Chen, Fanlong Zeng, Jia Xu, Xi Shen, Yizheng Wu
Summary: We investigated the anisotropy of Gilbert damping in Co-Fe-B(001) films and found a clear four-fold symmetry with respect to the in-plane field orientation. The maximum damping was observed for the field along Co-Fe-B(100). The anisotropic magnetoresistance (AMR) in the films showed little current-orientation dependence, indicating weak correlation with the origin of damping anisotropy. This research provides a useful way to control intrinsic damping for designing and optimizing spintronics devices based on Co-Fe-B.
PHYSICAL REVIEW APPLIED
(2023)
Article
Materials Science, Multidisciplinary
Xia Xiao, Jiajun Guo, Zexin Gao, Dashuai Zhai, Ruxin Liu, Shuchao Qin, Mehran Khan Alam, Zhi Sun
Summary: In this study, stable and reproducible complementary resistive switching (CRS) behavior is achieved in egg albumen-based devices using non-inert aluminum as the top electrode. Applying a compliance current leads to the transformation from CRS to bipolar resistive switching (BRS) and enables the emulation of synaptic functions. It is found that the CRS is attributed to the interfacial Schottky barriers caused by aluminum electrode oxidation. These findings provide significant insights into the role of non-inert electrodes and contribute to a comprehensive understanding of the CRS mechanism, facilitating the development of high-performance CRS biodevices.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Nanoscience & Nanotechnology
Chao Zhou, Jia Xu, Tong Wu, Yizheng Wu
Summary: Antiferromagnets, with high stability and stray-field-free property, are considered as a promising host material for the next generation of magnetic storage. However, conventional magnetometry becomes ineffective in investigating their microscopic properties due to the absence of net magnetization. In this Perspective, an overview of various antiferromagnetic domain imaging techniques is provided, with a focus on the promising optical imaging method based on the magneto-optical birefringence effect. Recent advances in imaging antiferromagnetic domains using the magneto-optical birefringence technique are highlighted.
Article
Materials Science, Multidisciplinary
Xi Shen, Haoran Chen, Dong Shi, Hong Xia, Jia Xu, Fanlong Zeng, Yizheng Wu
Summary: The study investigates magnetization dynamics in disconnected kagome artificial spin ice (ASI) lattices using experimental and theoretical approaches. The research identifies the dynamical coupling effects and special magnon modes in different field orientations. This contributes to a better understanding of collective spin-dynamics behavior in nanomagnet systems.
Article
Materials Science, Multidisciplinary
Xingyu Shen, Yunjiao Cai, Yizheng Wu, Yi Ji
Summary: The ability to tune the spin relaxation length in mesoscopic Cu channels using ionic gating technique has been explored, showing reversibility at low temperature and room temperature. The tuning range can be gradually amplified through repeated gate voltage cycling.
Article
Materials Science, Multidisciplinary
Gang Qin, Xichao Zhang, Ruixuan Zhang, Ke Pei, Chendi Yang, Chunyang Xu, Yan Zhou, Yizheng Wu, Haifeng Du, Renchao Che
Summary: We experimentally demonstrate the reversible motion of skyrmions driven by a controlled temperature gradient in a chiral magnet FeGe. The skyrmions show directional thermal diffusion along the gradient of temperature, indicating the thermal-induced skyrmion Hall effect. Our results provide a promising way for the realization of caloritronic applications based on topological spin textures.
Article
Optics
Changqin Liu, Sheng Zhang, Shunjia Wang, Qingnan Cai, Peng Wang, Chuanshan Tian, Lei Zhou, Yizheng Wu, Zhensheng Tao
Summary: A novel laser-driven terahertz emitter is proposed in this study, utilizing metasurface-patterned magnetic multilayer heterostructures to efficiently generate and manipulate broadband chiral terahertz waves.
ADVANCED PHOTONICS
(2021)
