Article
Materials Science, Multidisciplinary
A. Ceferino, S. J. Magorrian, V Zolyomi, D. A. Bandurin, A. K. Geim, A. Patane, Z. D. Kovalyuk, Z. R. Kudrynskyi, I. Grigorieva, V. Fal'ko
Summary: The paper demonstrates the tunability of spin-orbit coupling strength in few-layer gamma-InSe films, potentially enabling electrically switchable spintronic devices. Theoretical calculations and experimental measurements show good agreement in terms of Dyakonov-Perel spin relaxation due to SOC.
Article
Chemistry, Multidisciplinary
Oliver Dowinton, Denis Maryenko, Rodion Vladimirovich Belosludov, Bohm-Jung Yang, Mohammad Saeed Bahramy
Summary: 2D phases of matter have brought a wealth of novel quantum phenomena and device applications. This study presents a non-traditional method to realize a quasi-2D electron gas in a 3D bulk oxide perovskite, with magnetically controllable topological spin textures. The anomalous Hall effect and quantum oscillations in charge conductivity and thermoelectric properties are proposed as routes to experimentally demonstrate the quasi-2D behavior.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Physics, Multidisciplinary
Josep Ingla-Aynes, Franz Herling, Jaroslav Fabian, Luis E. Hueso, Felix Casanova
Summary: The ultimate goal of spintronics is to achieve electrically controlled coherent manipulation of electron spin at room temperature for devices such as spin field-effect transistors. The use of 2D materials with strong spin anisotropy and valley character provides unique control knobs for manipulating spin precession. Experimental results have shown successful coherent spin precession in the absence of an external magnetic field, even in the diffusive regime, by manipulating spin-orbit coupling in bilayer graphene.
PHYSICAL REVIEW LETTERS
(2021)
Article
Materials Science, Multidisciplinary
I. R. de Assis, R. Raimondi, G. J. Ferreira
Summary: Controlling the spin dynamics and spin lifetimes is a major challenge in spintronics. Research has shown that a persistent spin helix regime with a long lifetime can be achieved when the Rashba and Dresselhaus spin-orbit couplings are balanced. The intersubband scattering rate, controlled by electric fields and maximized for symmetric quantum wells, is a key factor in controlling spin dynamics and can lead to reduced diffusion constants and longer spin lifetimes.
Article
Materials Science, Multidisciplinary
I. A. Kokurin
Summary: Understanding the subband spectrum and wave functions of holes in III-V semiconductor nanowires is crucial for current applications. Previous studies have simplified the calculation of hole subbands, neglecting important features such as the real nanowire cross section shape and crystal orientation. In this study, these features are taken into account to calculate the subbands in GaAs nanowires. The results show that the lack of an inversion center significantly affects the subband spectrum and wave functions.
Article
Materials Science, Multidisciplinary
Genevieve Fleury, Michael Barth, Cosimo Gorini
Summary: This study shows that pure spin injection from a magnetic electrode into a system with broken inversion symmetry can generate a transverse charge current. This tunneling spin galvanic conversion is robust to disorder and nonlocal and exhibits strong anisotropy in the presence of a nontrivial angular dependence of the internal spin-orbit field.
Article
Chemistry, Physical
Xingchi Mu, Yiming Pan, Jian Zhou
Summary: We have elucidated a bias-free light-induced orbital and spin current through nonlinear response theory, and demonstrated this effect in two-dimensional nonmagnetic ferroelectric materials. This hidden photo-induced pure orbital current could lead to a pure spin current via spin-orbit coupling interactions, offering a route to generalizing nanoscale devices into orbitronics and spintronics.
NPJ COMPUTATIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Jiajia Chen, Kai Wu, Wei Hu, Jinlong Yang
Summary: Research shows that 2D polar perovskites have large Rashba constants and strong electric field responses, making them suitable for use in spin FETs, enabling a short spin channel length of tens of nanometers to preserve spin coherence.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Ke-Yu Lu, Ya-Ping He, Zhi-Yi He, Mi-Mi Zu, Mao-Wang Lu
Summary: In this study, we theoretically investigate the spin-polarized transport induced by Dresselhaus spin-orbit coupling for electrons tunneling through a single-layered semiconductor nanostructure (InSb). We observe a significant electron-spin polarization in this nanostructure, which is associated with the electron energy and in-plane wave vector and can be manipulated by strain engineering or layer thickness. Based on this nanostructure, we propose a controllable electron-spin filter for spintronics device applications.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Materials Science, Multidisciplinary
Jia-Xin Xiong, Shan Guan, Jun-Wei Luo, Shu-Shen Li
Summary: Contrary to conventional wisdom, a strong and tunable k-linear Rashba SOC has been discovered in Ge/Si semiconductor quantum wells, originating from a combination of heavy-hole-light-hole mixing and direct dipolar coupling to the external electric field. Ge/Si QWs oriented in the [110] direction exhibit a much stronger linear Rashba SOC compared to their [001] counterparts, making them an excellent platform for large-scale quantum computation.
Article
Chemistry, Multidisciplinary
Victor Lopes, Guillermo Chiappe, Laercio C. Ribeiro, Enrique Anda
Summary: This paper investigates the behavior of electronic current in a one-dimensional lead with spin-orbit coupling. The study focuses on the injection of this current into a metallic conductor through two contacts, forming a closed loop. The results show that, under the influence of an external potential, the current becomes spin-dependent and interferes with itself to create spin-polarized interference patterns. This discovery has significant implications for spintronics applications.
Article
Chemistry, Multidisciplinary
Mi-Jin Jin, Doo-Seung Um, Kohei Ohnishi, Sachio Komori, Nadia Stelmashenko, Daeseong Choe, Jung-Woo Yoo, Jason W. A. Robinson
Summary: This study demonstrates nonlocal spin-transport on a two-dimensional surface-conducting SrTiO3 (STO) via the spin Hall effect, without the need for a ferromagnetic spin-injector. Anisotropic spin-signal consistent with Hanle precession of pure spin current is observed by applying magnetic fields at different angles to the nonlocal spin-diffusion. Key transport parameters extracted include a spin Hall angle of approximately 0.25, a spin lifetime of around 49 ps, and a spin diffusion length of approximately 1.23 μm at 2 K.
Article
Physics, Applied
Zhi Ping Niu, Yong Mei Zhang
Summary: We theoretically investigate the conductance spectra induced by Andreev reflection (AR) in antiferromagnet/normal layer/superconductor junctions with hexagonal lattices. The antiferromagnet may exhibit spin polarization when the PT symmetry is broken by the staggered sublattice potential. The conductance peak divides into two peaks near the singlet-gap energy, indicating the existence of spin-triplet pairings in the antiferromagnet when the equal-spin AR process dominates. Further modulation of the conductance peak splitting can be achieved by controlling the amplitudes of conventional and equal-spin ARs, providing a method to distinguish between spin-singlet and spin-triplet pairings. These findings highlight the potential of antiferromagnet/superconductor junctions in future superconducting spintronics applications.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Physics, Applied
Moh. Adhib Ulil Absor, Iman Santoso
Summary: The recent discovery of materials hosting persistent spin texture (PST) opens up new possibilities for energy-saving spintronics. However, the stability of PST is affected by symmetry breaking induced by external perturbations like electric fields. In this paper, the authors report the emergence of a stable PST in a two-dimensional ferroelectric bilayer WTe2, which can be effectively controlled by an out-of-plane external electric field. These findings offer a promising platform for highly efficient and non-volatile spintronic devices.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Chia-Tse Tai, Po-Yuan Chiu, Chia-You Liu, Hsiang-Shun Kao, C. Thomas Harris, Tzu-Ming Lu, Chi-Ti Hsieh, Shu-Wei Chang, Jiun-Yun Li
Summary: The demonstration of 2D hole gases in GeSn/Ge heterostructures shows a high mobility of up to 20,000 cm(2) V-1 s(-1). The study observed Shubnikov-de Haas oscillations and integer quantum Hall effect, and investigated the Rashba spin-orbit coupling through magneto-transport. Additionally, a transition from weak localization to weak anti-localization was observed, demonstrating the tunability of SOC strength by gating.
ADVANCED MATERIALS
(2021)
Article
Quantum Science & Technology
Tom Bosma, Gerrit J. J. Lof, Carmem M. Gilardoni, Olger Zwier, Freddie Hendriks, Bjorn Magnusson, Alexandre Ellison, Andreas Gallstrom, Ivan G. Ivanov, N. T. Son, Remco W. A. Havenith, Caspar H. van der Wal
NPJ QUANTUM INFORMATION
(2018)
Article
Materials Science, Multidisciplinary
Jorge Quereda, Talieh S. Ghiasi, Caspar H. van der Wal, Bart J. van Wees
Article
Physics, Applied
Muhammad Javaid Iqbal, Dirk Reuter, Andreas Dirk Wieck, Caspar van der Wal
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
Xu Yang, Caspar H. van der Wal, Bart J. van Wees
Article
Physics, Multidisciplinary
Carmem M. Gilardoni, Tom Bosma, Danny van Hien, Freddie Hendriks, Bjorn Magnusson, Alexandre Ellison, Ivan G. Ivanov, N. T. Son, Caspar H. van der Wal
NEW JOURNAL OF PHYSICS
(2020)
Article
Nanoscience & Nanotechnology
Jorge Quereda, Jan Hidding, Talieh S. Ghiasi, Bart J. van Wees, Caspar H. van der Wal, Marcos H. D. Guimaraes
Summary: The study revealed the impact of Schottky contacts on CPC, showing that additional contributions are allowed when Schottky barriers are present in the device, resulting in the emergence of CPC under normal incidence illumination.
NPJ 2D MATERIALS AND APPLICATIONS
(2021)
Article
Physics, Multidisciplinary
Carmem M. Gilardoni, Irina Ion, Freddie Hendriks, Michael Trupke, Caspar H. van der Wal
Summary: Transition metal defects in SiC can be optically addressed in the telecom range and have been intensively studied for their spin and optical properties. The presence of a central nuclear spin can lead to a non-trivial mixing of electronic spin states while maintaining defect symmetry, enabling efficient manipulation of the electronic spin.The interplay between a small applied magnetic field and hyperfine coupling opens up magnetic microwave transitions that are forbidden in the absence of hyperfine coupling.
NEW JOURNAL OF PHYSICS
(2021)
Article
Physics, Applied
Tom Bosma, Joop Hendriks, Misagh Ghezellou, Nguyen T. Son, Jawad Ul-Hassan, Caspar H. van der Wal
Summary: Researchers have proposed a method for fabricating integrated photonic devices in silicon carbide and successfully tested it. They fabricated SiC structures, demonstrated waveguide functionality, and showed low propagation losses. These waveguide types allow for addressing color centers over a broad wavelength range with low inhomogeneity of optical properties.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Applied
Olger Zwier, Tom Bosma, Carmem M. Gilardoni, Xu Yang, Alexander R. Onur, Takeshi Ohshima, Nguyen T. Son, Caspar H. van der Wal
Summary: Researchers have successfully achieved electromagnetically induced transparency in silicon carbide, enabling strong interfacing between optical signals and quantum coherence of electronic spins. However, implementing this phenomenon is challenging due to the inhomogeneous broadening of optical transitions and multiple ground-state levels in silicon carbide. By carefully designing the measurement geometry, researchers have established high visibility of the electromagnetically induced transparency effect.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Rafael R. Rojas-Lopez, Freddie Hendriks, Caspar H. van der Wal, Paulo S. S. Guimaraes, Marcos H. D. Guimaraes
Summary: Semiconductor transition metal dichalcogenides (TMDs) exhibit equivalent dynamics for their two spin/valley species, which is due to the energy-degenerated spin states connected through time-reversal symmetry. Application of an out-of-plane magnetic field breaks the time-reversal symmetry and leads to different bandgaps and dynamics in the K + - 2. The magnetic field can control the light-induced spin accumulation in the two valley states, with minimal effect on recombination lifetimes.
Article
Materials Science, Multidisciplinary
Carmem M. Gilardoni, Freddie Hendriks, Caspar H. van der Wal, Marcos H. D. Guimaraes
Summary: Transition metal dichalcogenides (TMDs) exhibit interesting optical and spintronic properties due to their large spin-orbit coupling and crystal symmetries, allowing for potential development of novel optospintronic devices. Different spin-scattering processes are found in monolayer and bilayer TMDs, with distinct behaviors of electrons and holes leading to unique spin lifetimes. The presence of hidden spin polarization within each layer in bilayer and bulk TMDs enables external control of the spin lifetime through an out-of-plane electric field.
Article
Materials Science, Multidisciplinary
Xu Yang, Tom Bosma, Bart J. van Wees, Caspar H. van der Wal
Article
Materials Science, Multidisciplinary
Xu Yang, Caspar H. van der Wal, Bart J. van Wees
Article
Materials Science, Multidisciplinary
A. R. Onur, C. H. van der Wal
Article
Materials Science, Multidisciplinary
Jorge Quereda, Talieh S. Ghiasi, Feitze A. van Zwol, Caspar H. van der Wal, Bart J. van Wees
