English
Related papers

Related papers: Chiral Phonon Activated Spin Seebeck Effect

200 papers

Topological magnetic insulators host chiral gapless edge modes. In the presence of strong interaction effects, the spin of these modes may fractionalize. Studying a 2D array of coupled insulating spin-1/2 chains, we show how spatially…

Strongly Correlated Electrons · Physics 2025-01-03 Even Thingstad , Pierre Fromholz , Flavio Ronetti , Daniel Loss , Jelena Klinovaja

In ionic materials, circularly polarized phonons carry orbital magnetic moments that arise from circular motions of the ions, and which interact with other magnetic moments or fields. Here, we calculate the orbital magnetic moments of…

Materials Science · Physics 2019-06-12 Dominik M. Juraschek , Nicola A. Spaldin

Central to spintronics is the interconversion between electronic charge and spin currents, and this can arise from the chirality-induced spin selectivity (CISS) effect. CISS is often studied as magnetoresistance (MR) in two-terminal (2T)…

Mesoscale and Nanoscale Physics · Physics 2020-08-21 Xu Yang , Caspar H. van der Wal , Bart J. van Wees

We investigate the effects of chirality on phonon thermal transport in semiconducting chiral single-walled carbon nanotubes (SWCNTs) using lattice dynamics combined with Boltzmann transport theory. We find that transverse acoustic and…

Mesoscale and Nanoscale Physics · Physics 2026-02-26 Raimu Akimoto , Hiroyasu Matsuura , Takahiro Yamamoto

We develop a microscopic theory of the spin Seebeck effect (SSE) at the interface of a bilayer system of a ferromagnetic insulator and graphene. We compare the tunneling spin current at the interface because of the SSE and the spin pumping…

Mesoscale and Nanoscale Physics · Physics 2024-12-25 Xin Hu , Yuya Ominato , Mamoru Matsuo

Nonlocal spin polarization phenomena are thoroughly investigated in the devices made of chiral metallic single crystals of CrNb$_3$S$_6$ and NbSi$_2$ as well as of polycrystalline NbSi$_2$. We demonstrate that simultaneous injection of…

Materials Science · Physics 2023-08-09 Hiroaki Shishido , Yuta Hosaka , Kenta Monden , Akito Inui , Taisei Sayo , Yusuke Kousaka , Yoshihiko Togawa

Understanding the transfer of spin angular momentum is essential in modern magnetism research. A model case is the generation of magnons in magnetic insulators by heating an adjacent metal film. Here, we reveal the initial steps of this…

We present a non-perturbative theory that describes how light regulates chiral-induced spin selectivity (CISS) from the perspective of strong light-matter interactions. The research results indicate that 1) light can have opposite effects…

Quantum Physics · Physics 2023-10-18 Wei Liu , Jingqi Chen , Wenjie Dou

Resonant enhancement of spin Seebeck effect (SSE) due to phonons was recently discovered in Y3Fe5O12 (YIG). This effect is explained by hybridization between the magnon and phonon dispersions. However, this effect was observed at low…

Recently, the chiral-induced spin selectivity in molecular systems has attracted extensive interest among the scientific communities. Here, we investigate the effect of the gate voltage on spin-selective electron transport through the…

Mesoscale and Nanoscale Physics · Physics 2015-09-16 Ting-Rui Pan , Ai-Min Guo , Qing-Feng Sun

We show that graphene with Mn adatoms trapped at single vacancies feature spin-dependent Seebeck effect, thus enabling the use of this material for spin caloritronics. A gate potential can be used to tune its thermoelectric properties in a…

Mesoscale and Nanoscale Physics · Physics 2014-02-25 Alberto Torres , Matheus P. Lima , A. Fazzio , Antônio J. R. da Silva

Utilizing the Zubarev non-equilibrium density operator method and a first-order gradient expansion, we provide a comprehensive classification of all possible spin polarization effects. A key finding is that, with the unique exception of…

High Energy Physics - Phenomenology · Physics 2025-09-08 Matteo Buzzegoli

The observation of the spin Seebeck effect in insulators has meant a breakthrough for spin caloritronics due to the unique ability to generate pure spin currents by thermal excitations in insulating systems without moving charge carriers.…

Chiral induced spin selectivity is a phenomenon that has been attributed to chirality, spin-orbit interactions, and non-equilibrium conditions, while the role of electron exchange and correlations have been investigated only marginally…

Mesoscale and Nanoscale Physics · Physics 2021-04-28 J. Fransson

Spin-resolved photoelectron spectroscopy (PES) is a major experimental probe of chirality-induced spin selectivity (CISS), yet it remains unclear whether the measured spin polarization reflects molecular chirality itself or the broader…

Materials Science · Physics 2026-03-25 Amos Afugu , Gyanu P. Kafle , Zhen-Fei Liu

In spin caloritronics, a branch of spintronics, the spin degree of freedom is exploited for thermoelectric conversion and thermal transport. Since the inception of spin caloritronics, many experimental and theoretical studies have focused…

Materials Science · Physics 2021-11-04 Ken-ichi Uchida , Ryo Iguchi

Silicon's weak intrinsic spin-orbit coupling and centrosymmetric crystal structure are a critical bottleneck to the development of Si spintronics, because they lead to an insignificant spin-Hall effect (spin current generation) and inverse…

Mesoscale and Nanoscale Physics · Physics 2020-04-03 Paul C. Lou , Anand Katailiha , Ravindra G. Bhardwaj , Tonmoy Bhowmick , W. P. Beyermann , Roger K. Lake , Sandeep Kumar

Chirality-induced spin selectivity is a spin-splitting phenomenon from a helical structure with a considerably effective spin-orbit coupling. This unexpectedly large spin-splitting phenomenon has been experimentally observed in chiral…

Strongly Correlated Electrons · Physics 2024-05-08 Meng Xu , Yan Chen

Various device-based experiments have indicated that electron transfer in certain chiral molecules may be spin-dependent, a phenomenon known as the Chiral Induced Spin Selectivity (CISS) effect. However, due to the complexity of these…

Mesoscale and Nanoscale Physics · Physics 2019-01-23 Xu Yang , Caspar H. van der Wal , Bart J. van Wees

The chiral induced spin selectivity effect is an excited states phenomenon, which can be probed using photo-spectroscopy as well as transport measurements. On the one hand such measurements represent averaged quantities, on the other hand…

Mesoscale and Nanoscale Physics · Physics 2023-01-03 J. Fransson