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The spin-orbit interaction in a solid couples the spin of an electron to its momentum. This coupling gives rise to mutual conversion between spin and charge currents: the direct and inverse spin Hall effects. The spin Hall effects have been…

Materials Science · Physics 2015-05-28 Kazuya Ando , Eiji Saitoh

We report measurements of spin susceptibility of a two-dimensional hole gas confined at an GaAs/AlGaAs interface in density range from 2.8 x 10^10 to 6.5 x 10^10 cm-2. We used the method of spin polarization of carriers in parallel magnetic…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Mukesh Kumar , Giorgio Mori , Flavio Capotondi , Giorgio Biasiol , Lucia Sorba

We show that two types of spin-orbit coupling in the 2 dimensional hole gas (2DHG), with and without inversion symmetry breaking, contribute to the intrinsic spin Hall effect\cite{murakami2003,sinova2003}. Furthermore, the vertex correction…

Other Condensed Matter · Physics 2009-11-10 B. Andrei Bernevig , Shou-Cheng Zhang

In this letter, we show that Giant Spin Hall Effect (GSHE) MRAM can enable better energy- delay and voltage performance than traditional MTJ based spin torque devices at scaled nanomagnet dimensions (10-30 nm). Firstly, we derive the effect…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 Sasikanth Manipatruni , Dmitri E. Nikonov , Ian A. Young

The generation and manipulation of carrier spin polarization in semiconductors solely by electric fields has garnered significant attention as both an interesting manifestation of spin-orbit physics as well as a valuable capability for…

Mesoscale and Nanoscale Physics · Physics 2008-06-03 N. P. Stern , D. W. Steuerman , S. Mack , A. C. Gossard , D. D. Awschalom

The spin Hall effect (SHE), in which electrical current generates transverse spin current, plays an important role in spintronics for the generation and manipulation of spin-polarized electrons. The phenomenon originates from spin-orbit…

The spin Hall effect (SHE) allows efficient generation of spin polarization or spin current through charge current and plays a crucial role in the development of spintronics. While SHE typically occurs in non-magnetic materials and is…

A fully relativistic description of the spin-orbit induced spin Hall effect is presented that is based on Kubo's linear response formalism. Using an appropriate operator for the spin current density a Kubo-St\v{r}eda-like equation for the…

The quantum spin Hall effect (QSHE) has formed the seed for contemporary research on topological quantum states of matter. Since its discovery in HgTe/CdTe quantum wells and AlGaAs/GaAs heterostructures, all such systems have so far been…

Strongly Correlated Electrons · Physics 2018-11-07 Gang Li , Werner Hanke , Ewelina M. Hankiewicz , Felix Reis , Joerg Schaefer , Ralph Claessen , Congjun Wu , Ronny Thomale

Since spin currents can be generated, detected, and manipulated via the spin Hall effect (SHE), the design of strong SHE materials has become a focus in the field of spintronics. Because of the recent experimental progress also the spin…

Materials Science · Physics 2018-05-31 Yang Zhang , Qiunan Xu , Klaus Koepernik , Johannes Gooth , Jeroen van den Brink , Claudia Felser , Yan Sun

We investigate the intrinsic spin Hall conductivity (SHC) and the d-orbital Hall conductivity (OHC) in metallic d-electron systems, by focusing on the t_{2g}-orbital tight-binding model for Sr2MO4 (M=Ru,Rh,Mo). The conductivities obtained…

Strongly Correlated Electrons · Physics 2009-11-13 H. Kontani , T. Tanaka , D. S. Hirashima , K. Yamada , J. Inoue

Spin gapless semiconductor (SGS) has attracted long attention since its theoretical prediction, while concrete experimental hints are still lack in the relevant Heusler alloys. Here in this work, by preparing the series alloys of…

Materials Science · Physics 2023-12-01 Cheng Zhang , Shuang Pan , Peihao Wang , Yuchen Men , Xiang Li , Yuqing Bai , Li Tang , Feng Xu , Guizhou Xu

We present a detailed analysis of harmonic longitudinal and Hall voltage measurements for in-plane magnetized Pt/Co/Ta and Ta/Co/Pt trilayers in reference to Pt/Co and Ta/Co bilayers. Enhancement of spin-orbit torques (SOTs) and…

Mesoscale and Nanoscale Physics · Physics 2021-11-17 Anastasiia Moskaltsova , Denis Dyck , Jan-Michael Schmalhorst , Günter Reiss , Timo Kuschel

We study the intrinsic spin Hall conductivity (SHC) and the $d$-orbital Hall conductivity (OHC) in metallic $d$-electron systems based on the multiorbital tight-binding model. The obtained Hall conductivities are much larger than that in…

Strongly Correlated Electrons · Physics 2009-11-13 T. Tanaka , H. Kontani , M. Naito , D. S. Hirashima , K. Yamada , J. Inoue

We report measurements and calculations of the spin-subband depopulation, induced by a parallel magnetic field, of dilute GaAs two-dimensional (2D) hole systems. The results reveal that the shape of the confining potential dramatically…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 R. Winkler , E. Tutuc , S. J. Papadakis , S. Melinte , M. Shayegan , D. Wasserman , S. A. Lyon

Electrical currents in a magnetic insulator/heavy metal heterostructure can induce two simultaneous effects, namely, spin Hall magnetoresistance (SMR) on the heavy metal side and spin-orbit torques (SOTs) on the magnetic insulator side.…

The quantum spin Hall (QSH) effect has attracted extensive research interest because of the potential applications in spintronics and quantum computing, which is attributable to two conducting edge channels with opposite spin polarization…

With a view to electrical spin manipulation and quantum computing applications, recent significant attention has been devoted to semiconductor hole systems, which have very strong spin-orbit interactions. However, experimentally measuring,…

Mesoscale and Nanoscale Physics · Physics 2018-10-08 Hong Liu , Elizabeth Marcellina , Alexander R. Hamilton , Dimitrie Culcer

van der Waals heterostructures assembled from atomically thin crystals are ideal model systems to study spin-orbital coupled transport because they exhibit a strong interplay between spin, lattice and valley degrees of freedom that can be…

Mesoscale and Nanoscale Physics · Physics 2021-08-18 Carmen Monaco , Aires Ferreira , Roberto Raimondi

The spin Hall effect originating from 5d heavy transition metal thin films such as Pt, Ta, and W is able to generate efficient spin-orbit torques that can switch adjacent magnetic layers. This mechanism can serve as an alternative to…

Materials Science · Physics 2019-08-30 Wei-Bang Liao , Tian-Yue Chen , Yari Ferrante , Stuart S. P. Parkin , Chi-Feng Pai
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