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相关论文: Current-sensitive Hall effect in a chiral-orbital-…

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Chiral orbital current (COC) plays a crucial role in governing the magnetization and transport behaviour in the layered ferrimagnetic nodal-line semiconductor Mn3Si2Te6. Here, we observe that the topological Hall effect (THE), typically…

其他凝聚态物理 · 物理学 2026-02-03 Arnab Das , Soumik Mukhopadhyay

Colossal magnetoresistance (CMR) is an extraordinary enhancement of the electric conductivity in the presence of a magnetic field. It is conventionally associated with a field-induced spin polarization, which drastically reduces spin…

强关联电子 · 物理学 2022-10-17 Yu Zhang , Yifei Ni , Hengdi Zhao , Sami Hakani , Feng Ye , Lance DeLong , Itamar Kimchi , Gang Cao

We report the observation of a highly unusual Hall current in the MnSi in an applied pressure P = 6-12 kbar. The Hall conductivity displays a distinctive step-wise field profile quite unlike any other Hall response observed in solids. We…

强关联电子 · 物理学 2015-05-13 Minhyea Lee , W. Kang , Y. Onose , Y. Tokura , N. P. Ong

The normal-state Hall effect and magnetoresisitance (MR) have been measured in the quasi-2D heavy fermion superconductor CeCoIn_5. In the non-Fermi liquid region where the reistivity rho_xx exhibits an almost perfect T-linear dependence,…

超导电性 · 物理学 2016-08-31 Y. Nakajima , K. Izawa , Y. Matsuda , S. Uji , T. Terashima , H. Shishido , R. Settai , Y. Onuki , H. Kontani

We report the discovery of a new form of inductance in the bulk ferrimagnet Mn3Si2Te6, which features strong spin-orbit coupling, large magnetic anisotropy, and pronounced magnetoelastic interactions. Below its Curie temperature, Mn3Si2Te6…

The transport properties of massless fermions in $3+1$ spacetime dimension have been in the focus of recent theoretical and experimental research. New transport properties appear as consequences of chiral anomalies. The most prominent is…

介观与纳米尺度物理 · 物理学 2018-05-09 Karl Landsteiner , Yan Liu

Transport property under metallic ferroaxial ordering in an external magnetic field is theoretically investigated. After presenting the relation between the magnetoconductivity tensor and ferroaxial moment from the symmetry viewpoint, we…

强关联电子 · 物理学 2024-04-23 Satoru Hayami , Rikuto Oiwa , Hiroaki Kusunose

Recently, chiral anomaly (CA) has been proposed to occur in spin-orbit coupled noncentrosymmetric metals (SOC-NCMs), motivating CA to be a Fermi surface property rather than a Weyl node property. Although the nature of the anomaly is…

介观与纳米尺度物理 · 物理学 2023-11-01 Gautham Varma K , Azaz Ahmad , Sumanta Tewari , G. Sharma

Colossal magnetoresistance (CMR) is commonly observed in magnetic semiconductors when an external magnetic field is applied, usually accompanied by anomalous resistivity peaks or humps which were previously considered as evidence of a…

材料科学 · 物理学 2025-03-26 Zhihao Liu , Zhong Fang , Hongming Weng , Quansheng Wu

The ferrimagnetic nodal-line semiconductor Mn$_3$Si$_2$Te$_6$ exhibits colossal magnetoresistance (CMR) owing to the chiral orbital currents (COC). The COC is developed due to spin-orbit interaction (SOI) attributed to the tellurium (Te)…

材料科学 · 物理学 2025-02-13 Arnab Das , Soumik Mukhopadhyay

The 5d iridium-based transition metal oxides have gained broad interest because of their strong spin-orbit coupling which favors new or exotic quantum electronic states. On the other hand, they rarely exhibit more mainstream orders like…

强关联电子 · 物理学 2022-01-26 Arun Kumar Jaiswal , Di Wang , Vanessa Wollersen , Rudolf Schneider , Matthieu Le Tacon , Dirk Fuchs

We have calculated the intrinsic anomalous and spin Hall conductivities, spin and orbital magnetic moments and also spin polarization of Hall currentsin hexagonal cobalt within the density functional theory with the generalized gradient…

强关联电子 · 物理学 2015-06-05 Jen-Chuan Tung , Huei-Ru Fuh , Guang-Yu Guo

In the ferrimagnetic semiconductor Mn$_3$Si$_2$Te$_6$, a colossal magnetoresistance (CMR) is observed only when a magnetic field is applied along the magnetic hard axis ($\mathbf{H}\parallel c$). This phenomenon suggests an unconventional…

Recent studies on altermagnets have focused considerable attention on nonrelativistic effects that persist in the absence of spin-orbit coupling (SOC). As a result, the relative importance of various phenomena in altermagnets has commonly…

材料科学 · 物理学 2026-05-22 Xukun Feng , Jin Cao , Lay Kee Ang , Shengyuan A. Yang , Cong Xiao , X. C. Xie

The anomalous Hall and Nernst effects describe the voltage drop perpendicular to an applied current and temperature gradient due to the magnetization of a magnetic material. These effects can be utilized to measure the Berry curvature at…

强关联电子 · 物理学 2024-02-01 Longfei Li , Shuyue Guan , Shengwei Chi , Jiawei Li , Xinxuan Lin , Gang Xu , Shuang Jia

The spin Hall effect is a phenomenon that an electric field induces a spin Hall current. In this Letter, we examine the inverse effect that, in a ferromagnetic conductor, a charge Hall current is induced by a spin motive force, or a…

介观与纳米尺度物理 · 物理学 2009-11-13 Junya Shibata , Hiroshi Kohno

Recent studies have shown that chiral anomaly is not limited to Weyl semimetals (WSMs), but are also shown by a larger class of materials called spin orbit coupled noncentrosymmetric metals (SOC-NCMs),which has shed more insight into the…

介观与纳米尺度物理 · 物理学 2026-01-08 Gautham Varma K , Mohd. Hashim Raza , Azaz Ahmad

The anomalous Hall effect due to the spin chirality order and fluctuation is studied theoretically in a Kondo lattice model without the relativistic spin-orbit interaction. Even without the correlations of the localized spins, $\sigma_{xy}$…

强关联电子 · 物理学 2009-11-07 Shigeki Onoda , Naoto Nagaosa

The heavy fermion systems present a unique platform in which strong electronic correlations give rise to a host of novel, and often competing, electronic and magnetic ground states. Amongst a number of potential experimental tools at our…

强关联电子 · 物理学 2012-10-18 Sunil Nair , S. Wirth , S. Friedemann , F. Steglich , Q. Si , A. J. Schofield

In most conductors current flow perpendicular to electric field direction (Hall current) can be explained in terms of the Lorentz forces present when charged particles flow in an external magnetic field. However, as established in the very…

材料科学 · 物理学 2014-01-14 Hua Chen , Qian Niu , A. H. MacDonald
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