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We quantitatively evaluate a spin anomalous Hall effect (SAHE), generating spin angular momentum flow (spin current, $J_{\rm s}$), in an L1$\rm_{0}$-FePt ferromagnet by exploiting giant magnetoresistance devices with L1$\rm_{0}$-FePt / Cu /…

Mesoscale and Nanoscale Physics · Physics 2019-10-23 Takeshi Seki , Satoshi Iihama , Tomohiro Taniguchi , Koki Takanashi

In a recent Letter Hammar et al. claim the observation of injection of a spin-polarized current in a two-dimensional electron gas (2DEG). This is an important observation, since, despite considerable effort of several groups, all attempts…

Condensed Matter · Physics 2009-10-31 B. J. van Wees

Spin-transfer torque and spin Hall effects combined with their reciprocal phenomena, spin-pumping and inverse spin Hall (ISHE) effects, enable the reading and control of magnetic moments in spintronics. The direct observation of these…

An intriguing feature of spintronics is the use of pure spin-currents to manipulate magnetization, e.g., spin-currents can switch magnetization in spin-torque MRAM, a next-generation DRAM alternative. Giant spin-currents via the spin Hall…

Mesoscale and Nanoscale Physics · Physics 2014-10-15 Mathias Weiler , Justin M. Shaw , Hans T. Nembach , Thomas J. Silva

We report room temperature electrical detection of spin injection from a ferromagnetic insulator (YIG) into a ferromagnetic metal (Permalloy, Py). Non-equilibrium spins with both static and precessional spin polarizations are dynamically…

Materials Science · Physics 2014-05-12 P. Hyde , Lihui Bai , D. M. J. Kumar , B. W. Southern , S. Y. Huang , B. F. Miao , C. L. Chien , C. -M. Hu

High spin to charge conversion efficiency is the requirement for the spintronics devices which is governed by spin pumping and inverse spin Hall effect (ISHE). In last one decade, ISHE and spin pumping are heavily investigated in…

Mesoscale and Nanoscale Physics · Physics 2021-09-01 Koustuv Roy , Abhisek Mishra , Pushpendra Gupta , Shaktiranjan Mohanty , Braj Bhusan Singh , Subhankar Bedanta

In this paper we present spin-to-charge current conversion properties in the Weyl semimetal TaP by means of the inverse Rashba-Edelstein effect (IREE) with the integration of this quantum material with the ferromagnetic metal Permalloy…

Mesoscale and Nanoscale Physics · Physics 2023-02-09 J. B. S. Mendes , R. O. Cunha , S. O. Ferreira , R. D. dos Reis , M. Schmidt , M. Nicklas , S. M. Rezende , A. Azevedo

We demonstrate spin injection into a graphene thin film with high reliability by using non-local magnetoresistance (MR) measurements, in which the electric current path is completely separated from the spin current path. Using these…

Materials Science · Physics 2009-11-13 Megumi Ohishi , Masashi Shiraishi , Ryo Nouchi , Takayuki Nozaki , Teruya Shinjo , Yoshishige Suzuki

The Spin Hall Effect (SHE) is a promising way for transforming charge currents into spin currents in spintronic devices. Large values of the Spin Hall Angle, the characteristic parameter of the yield of this transformation, have been…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Albert Fert , Peter M Levy

We report the spin-pump-induced spin transport properties of a pentacene film prepared by thermal evaporation. In a palladium(Pd)/pentacene/Ni80Fe20 tri-layer sample, a pure spin-current is generated in the pentacene layer by the…

Materials Science · Physics 2016-01-20 Yasuo Tani , Yoshio Teki , Eiji Shikoh

Spin Hall effect and its inverse provide essential means to convert charge to spin currents and vice versa, which serve as a primary function for spintronic phenomena such as the spin-torque ferromagnetic resonance and the spin Seebeck…

Mesoscale and Nanoscale Physics · Physics 2015-11-03 Yasuhiro Niimi , YoshiChika Otani

We measure the low-frequency thermal fluctuations of pure spin current in a Platinum film deposited on yttrium iron garnet via the inverse spin Hall effect (ISHE)-mediated voltage noise as a function of the angle $\alpha$ between the…

Over the past decade, topological insulators have received enormous attention for their potential in energy-efficient spin-to-charge conversion, enabled by strong spin-orbit coupling and spin-momentum locked surface states. Despite…

Mesoscale and Nanoscale Physics · Physics 2025-02-28 Wenxuan Sun , Yequan Chen , Ruijie Xu , Wenzhuo Zhuang , Di Wang , Long Liu , Anke Song , Guozhong Xing , Yongbing Xu , Rong Zhang , Cui-Zu Chang , Xuefeng Wang

We theoretically manifest that the edge of a quantum spin Hall insulator (QSHI), attached to an insulating ferromagnet (FM), can realize a highly efficient spin-to-charge conversion. Based on a one-dimensional QSHI-FM junction, the electron…

Mesoscale and Nanoscale Physics · Physics 2020-05-22 Yasufumi Araki , Takahiro Misawa , Kentaro Nomura

We study the transport of thermally excited non-equilibrium magnons through the ferrimagnetic insulator YIG using two electrically isolated Pt strips as injector and detector. The diffusing magnons induce a non- local inverse spin Hall…

We propose an optical means to realize a spin hall effect (SHE) in neutral atomic system by coupling the internal spin states of atoms to radiation. The interaction between the external optical fields and the atoms creates effective…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Xiong-Jun Liu , Xin Liu , L. C. Kwek , C. H. Oh

Electrical spin injection from the Heusler alloy Co_2MnGe into a p-i-n Al_0.1Ga_0.9As/GaAs light emitting diode is demonstrated. A maximum steady-state spin polarization of approximately 13% at 2 K is measured in two types of…

Discovery of topological Weyl semimetals has revealed the opportunities to realize several extraordinary physical phenomena in condensed matter physics. Specifically, these semimetals with strong spin-orbit coupling, broken inversion…

Mesoscale and Nanoscale Physics · Physics 2020-03-18 Bing Zhao , Dmitrii Khokhriakov , Yang Zhang , Huixia Fu , Bogdan Karpiak , Anamul Md. Hoque , Xiaoguang Xu , Yong Jiang , Binghai Yan , Saroj P. Dash

The spin Seebeck effect is a spin-motive force generated by a temperature gradient in a ferromagnet that can be detected via normal metal contacts through the inverse spin Hall effect [K. Uchida {\it et al.}, Nature {\bf 455}, 778-781…

Materials Science · Physics 2010-09-07 Jiang Xiao , Gerrit E. W. Bauer , Ken-ichi Uchida , Eiji Saitoh , Sadamichi Maekawa

We present a study of the transport properties of thermally generated spin currents in an insulating ferrimagnetic-antiferromagnetic-ferrimagnetic trilayer over a wide range of temperature. Spin currents generated by the spin Seebeck effect…

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