Review
Materials Science, Multidisciplinary
I. V. Rozhansky, V. N. Mantsevich, N. S. Maslova, P. I. Arseyev, N. S. Averkiev
Summary: This review article provides an overview of the experimental and theoretical investigation of dynamic electron spin injection in semiconductor nanostructures. The focus is on spin-dependent recombination and spin-dependent tunneling phenomena, which lead to photoluminescence polarization. These phenomena result in fundamentally different dynamic spin polarization compared to the steady state polarization seen in stationary spin injection or s(p)-d exchange interaction in metal/ferromagnetic or semiconductor/ferromagnetic hybrid structures. The study of dynamic spin polarization is receiving increasing attention due to the ability to control the process using external gating and the rich physics of time-dependent processes in semiconductor nanostructures. This article discusses the spin-dependent recombination via deep paramagnetic centers and dynamic spin polarization in hybrid heterostructures, as well as the potential implementation of dynamic spin polarization in spin lasers.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Oliver Busch, Boerge Goebel, Ingrid Mertig
Summary: The spin Hall effect is typically associated with spin-orbit interaction, but it can also occur in specific materials even in absence of spin-orbit coupling. Coplanar kagome antiferromagnets Mn3X are interesting candidates for applications involving spin currents. The main contribution to the intrinsic spin Hall signal in these materials comes from noncollinear magnetic texture and is most significant in coplanar systems. Furthermore, spin-orbit coupling or out-of-plane tilting of magnetic moments can effectively reduce the spin Hall effect.
Article
Chemistry, Multidisciplinary
Ruiheng Pan, Xiantong Tang, Lixuan Kan, Yang Li, Haomiao Yu, Kai Wang
Summary: This study demonstrates the circular photogalvanic effect (CPGE) and linear photogalvanic effect (LPGE) in (R-MBA)(2)PbI4 and (S-MBA)(2)PbI4 thin film materials. These effects exhibit decent two-fold symmetry for a complete cycle in a wide temperature range from 4 K to 300 K. The effect can be effectively tuned by constant magnetic fields, and the Bychkov-Rashba spin orbit coupling and chiral-induced magnetization are responsible for it. This research shows the promising future of using chiral lead halide perovskites for spin-orbitronics.
Article
Chemistry, Physical
Yang Zhang, Yue Nie, Yu Wang, Xiaolan Xue, Shenbo Zhu, Baoxin Hu, Yu Liu, Liwei Shi, Yong-Hai Chen
Summary: A spin-related photocurrent excited by circularly polarized light is observed near the electrodes on a few-layer ReS2 sample at room temperature. The phenomenon arises from the inverse spin Hall effect due to the local electric field near the electrode. The research shows that the electric field near the electrodes has a significant impact on the spin transmission operation, which is important for manufacturing spintronic devices in the future.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Benjamin M. Fregoso
Summary: This paper calculates the electric spin susceptibility of Bloch electrons with spin-orbit coupling to second order. It is found that a nonequilibrium spin polarization can be generated in the bulk of nonmagnetic inversion-symmetric materials using linearly polarized electric fields, but this process depends on interband coherence and results in heating. Circular polarization may be able to avoid heating in certain scenarios. The standard Edelstein effect and spin orientation effects can also be recovered in appropriate limits within the formalism. Additionally, in metals, the electric spin susceptibility has contributions proportional to spin multipole moments of the Fermi sea, which dominate the low frequency spin response.
Article
Optics
Simone Laterza, Antonio Caretta, Richa Bhardwaj, Roberto F. Lammini, Paolo Moras, Matteo Jugovac, Piu Rajak, Mahabul Islam, Regina Ciancio, Valentina Bonanni, Barbara Casarin, Alberto Simoncig, Marco Zangrando, Primoz Rebernik Ribic, Giuseppe Penco, Giovanni De Ninno, Luca Giannessi, Alexander Demidovich, Miltcho Danailov, Fulvio Parmigiani, Marco Malvestuto
Summary: In this study, the propagation characteristics of spin currents across metal-semiconductor interfaces were revealed using ultrafast time-resolved Kerr spectroscopy, providing experimental evidence for their existence and behavior.
Article
Chemistry, Physical
Jing-Jing He, Fang-Wen Guo, Hui-Min Ni, Jia-Ren Yuan, Wen-Dou Cui, Tian-Yi Lu, Yan-Dong Guo, Xiao-Hong Yan
Summary: Compared with traditional magnetic approaches, electrical modulation of spin-polarized current can reduce energy consumption and scale of nanodevices and improve their operating speed. The novel material β-SiC7 shows excellent spin-dependent electron transport properties, enabling precise control of spin polarization. The results suggest great potential for applications and indicate the intrinsic nature of this material's properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
D. H. Waldeck, R. Naaman, Y. Paltiel
Summary: The experiments on the chiral induced spin selectivity (CISS) effect have shown common attributes in different material systems, including the ability to observe spin selectivity for two point contact configurations and the correlation between the optical activity of chiral systems and a material's spin filtering properties. Recent experiments indicate that spin selectivity does not require pure coherent charge transport and electron spin polarization can persist over hundreds of nanometers in an ordered medium. However, there are still issues to be explored regarding the CISS mechanism, such as the role of phonons and electron-electron interactions.
Article
Physics, Applied
Zhi Ping Niu, Xin Pei Wen
Summary: Antiferromagnetic spintronics is a rapidly growing subfield in condensed-matter physics and information technology. By applying a transverse electric field E(y) to collinear antiferromagnetic junctions, we can observe spin polarization in the band structures of the antiferromagnets. The separation between spin-up and spin-down bands is controlled by E(y), and high spin polarization can be achieved at high exchange energy. The amplitude and sign of spin polarization can also be controlled by E(y), indicating the suitability of collinear antiferromagnetic materials for future spintronics applications.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Physics, Applied
M. K. Zhao, C. H. Wan, X. M. Luo, Y. Z. Wang, T. Y. Ma, W. L. Yang, Y. Zhang, L. Yin, G. Q. Yu, X. F. Han
Summary: Spin logics offer a shortcut to logic-in-memory architectures by independently controlling magnetization of in-plane and perpendicular layers without an external magnetic field. Experimental construction of five Boolean logic gates in a single device in a field-free condition marks progress towards practical spin-orbit torque logics.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Multidisciplinary
Cong Xiao, Huiying Liu, Weikang Wu, Hui Wang, Qian Niu, Shengyuan A. Yang
Summary: An intrinsic nonlinear electric spin generation effect dominant in centrosymmetric magnets is proposed, with the band geometric origin and symmetry characters clarified. This effect, determined solely by the material's band structure, represents a material characteristic. Combining theory and calculations, sizable nonlinear spin generation in single-layer MnBi2Te4 is predicted, which can be detected experimentally. This theory opens a new route for all-electric controlled spintronics in centrosymmetric magnets, beyond the current paradigm based on linear spin response.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Yotam Wolf, Yizhou Liu, Jiewen Xiao, Noejung Park, Binghai Yan
Summary: Chirality-induced spin selectivity (CISS) refers to the phenomenon where electrons become spin polarized after passing through chiral molecules in a nanoscale transport device or in photoemission experiments. Contrary to common belief, this study finds that both transmitted and reflected electrons exhibit the same type of spin polarization, which is a universal characteristic for two-terminal devices. Chiral molecules act as spin polarizers rather than spin filters, and the direction of spin polarization is determined by the molecule's chirality and the incident direction of the electron. The magnitude of spin polarization is influenced by local spin-orbit coupling in the device.
Article
Chemistry, Physical
Yuhui Li, Jun Deng, Yan-Fang Zhang, Xin Jin, Wen-Han Dong, Jia-Tao Sun, Jinbo Pan, Shixuan Du
Summary: This study reports a 2D material VSeF with opposite spin-polarized valence and conduction band edges, and proposes a general nonvolatile strategy to control the spin polarizations in BMS materials by introducing a ferroelectric gate. The electric dipole of ferroelectric bilayer Al2Se3 successfully controls the spin-up/spin-down polarization of VSeF, and the interfacial doping effect enhances its Curie temperature. Two types of spin field effect transistors, multiferroic memory and spin filter, are achieved in VSeF/Al2Se3 and VSeF/Al2Se3/Al2Se3 multiferroic heterostructures. This work will promote the application of 2D BMS materials in future spintronic nanodevices.
NPJ COMPUTATIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yue Zhao, Xingchi Mu, Gaoyang Gou, Jian Zhou, Xiaoli Lu, Yue Hao
Summary: This study demonstrates the possibility of optical generation and nonvolatile control of pure spin photocurrent in a ferroelectric semiconductor perovskite material through theoretical calculations and optical response simulations. The findings are important for information processing and novel device designs in the field of semiconductor spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Physics, Multidisciplinary
Ke Zhang, Shixuan Zhao, Zhanyang Hao, Shiv Kumar, Eike F. Schwier, Yingjie Zhang, Hongyi Sun, Yuan Wang, Yujie Hao, Xiaoming Ma, Cai Liu, Le Wang, Xiaoxiao Wang, Koji Miyamoto, Taichi Okuda, Chang Liu, Jiawei Mei, Kenya Shimada, Chaoyu Chen, Qihang Liu
Summary: Research has discovered distinct spin-momentum-layer locking phenomena in centrosymmetric crystals, with spin highly polarized along the Brillouin zone boundary and almost vanishing near the zone center. This sheds new light on the design metrics for future spintronic materials.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Applied
Nozomi Nishizawa, Masaki Aoyama, Ronel C. Roca, Kazuhiro Nishibayashi, Hiro Munekata
APPLIED PHYSICS EXPRESS
(2018)
Article
Physics, Applied
B. Al-Qadi, Y. Sakatoku, N. Nishizawa, H. Munekata
JOURNAL OF APPLIED PHYSICS
(2018)
Article
Engineering, Electrical & Electronic
A. Goschew, R. C. Roca, N. Nishizawa, H. Munekata, A. Delimitis, P. Fumagalli
IEEE TRANSACTIONS ON MAGNETICS
(2019)
Article
Physics, Applied
Hiro Munekata, Shunta Ogawa, Kento Michihiro, Kazuhiro Nishibayashi, Nozomi Nishizawa
JAPANESE JOURNAL OF APPLIED PHYSICS
(2020)
Article
Physics, Applied
Nozomi Nishizawa, Atsushi Hamada, Kazumasa Takahashi, Takahiro Kuchimaru, Hiro Munekata
JAPANESE JOURNAL OF APPLIED PHYSICS
(2020)
Article
Physics, Applied
E. A. Mashkovich, K. A. Grishunin, H. Munekata, A. Kimel
APPLIED PHYSICS LETTERS
(2020)
Article
Physics, Applied
Ronel Christian Roca, Nozomi Nishizawa, Hiro Munekata
Article
Biochemical Research Methods
Nozomi Nishizawa, Bassam Al-Qadi, Takahiro Kuchimaru
Summary: This study experimentally verified the potential for cancer identification using circularly polarized light scattering and observed significant differences in circular polarizations between cancerous and healthy tissues. Line-scanning experiments showed step-like behaviors in circular polarization corresponding to tissue states, whether cancerous or normal. Different resolutions for identifying cancerous tissues were induced by oblique and perpendicular incidence, indicating the importance of selecting optical arrangements based on resolution priorities.
JOURNAL OF BIOPHOTONICS
(2021)
Review
Chemistry, Analytical
Nozomi Nishizawa, Hiro Munekata
Summary: Lateral-type spin-photonic devices have advantages in circularly polarized light applications including compactness, standalone nature, room temperature operation, high circular polarization emission, polarization controllability, and are widely used in various fields and potentially for biological diagnosis.
Article
Biochemical Research Methods
Nozomi Nishizawa, Takahiro Kuchimaru
Summary: This study investigates the quantitative depth estimation of tumor invasion in early gastric cancer using the scattering of circularly polarized light. The results suggest that the degree of circular polarization of scattered light is related to the thickness and depth of the cancerous layer, indicating the possibility of in vivo quantitative estimation of cancer progression in early gastric cancer.
JOURNAL OF BIOPHOTONICS
(2022)
Article
Physics, Applied
Nicholas W. G. Smith, Yannick Pleimling, Brenden A. Magill, Rathsara R. H. H. Mudiyanselage, Alex Shenenberger, Shunta Ogawa, Nozomi Nishizawa, Hiro Munekata, Giti A. Khodaparast
Summary: In this study, we investigated the femtosecond-pulse-induced precession of magnetization in Co/Pd multilayer systems with different Co thicknesses. We found that the precession amplitudes increase as the Co layer thickness decreases. Further analysis showed that the enhancement of structural-dependent energy transfer efficiency is responsible for the observed variations in precession amplitudes.
JOURNAL OF APPLIED PHYSICS
(2022)
Proceedings Paper
Engineering, Biomedical
N. Nishizawa, S. Kawashima, B. Al-Qadi, T. Kuchimaru, H. Munekata
BIOMEDICAL IMAGING AND SENSING CONFERENCE 2020
(2020)
Article
Materials Science, Multidisciplinary
Brenden A. Magill, Sunil Thapa, Jade Holleman, Stephen McGill, Hiro Munekata, Christopher J. Stanton, Giti A. Khodaparast
Article
Materials Science, Multidisciplinary
A. Gatilova, E. A. Mashkovich, K. A. Grishunin, A. Pogrebna, R. Mikhaylovskiy, Th Rasing, P. M. Christianen, N. Nishizawa, H. Munekata, A. Kimel
