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The coexistence of topological magnons and electrons in magnetic materials presents a compelling route toward developing low-dissipation, multifunctional spintronic devices. However, material systems enabling their simultaneous realization…

Mesoscale and Nanoscale Physics · Physics 2025-10-13 Haozhou Cai , Zhiming Xu , Jian Wu , Weiyi Pan

The quantum anomalous Hall effect in magnetic kagome materials has emerged as a versatile platform for dissipationless electronic and spintronic devices. In this work, we demonstrate that the orientation of magnetic moments…

Strongly Correlated Electrons · Physics 2026-05-01 Ritwik Das , Arkamitra Sen , Indra Dasgupta

Realizing effective manipulation and explicit identification of topological spin textures are two crucial ingredients to make them as information carrier in spintronic devices with high storage density, high data handling speed and low…

Mesoscale and Nanoscale Physics · Physics 2022-09-26 Yingmei Zhu , Qirui Cui , Jinghua Liang , Yonglong Ga , Hongxin Yang

A magnon Nernst effect, an antiferromagnetic analogue of the magnon Hall effect in ferromagnetic insulators, has been studied experimentally for a layered antiferromagnetic insulator MnPS3 in contact with two Pt strips. Thermoelectric…

Materials Science · Physics 2017-11-01 Y. Shiomi , R. Takashima , E. Saitoh

Interest in ZrTe5 has been reinvigorated in recent years owing to its potential for hosting versatile topological electronic states and intriguing experimental discoveries. However, the mechanism of many of its unusual transport behaviors…

Mesoscale and Nanoscale Physics · Physics 2023-06-28 Yonghe Liu , Hanqi Pi , Kenji Watanabe , Takashi Taniguchi , Genda Gu , Qiang Li , Hongming Weng , Quansheng Wu , Yongqing Li , Yang Xu

We use temperature-dependent Hall measurements to identify contributions of spin Hall, magnetic proximity, and sublattice effects to the anomalous Hall signal in heavy metal/ferrimagnetic insulator heterostructures with perpendicular…

Magnetic topological insulators have received significant interest due to their dissipationless edge states, which promise advances in energy-efficient electronic transport. However, the magnetic topological insulator state has typically…

The interlayer antiferromagnetic coupling hinders the observation of quantum anomalous Hall effect in magnetic topological insulator MnBi$_2$Te$_4$. We demonstrate that interlayer \textit{ferromagnetism} can be established by utilizing the…

Materials Science · Physics 2021-06-09 Yulei Han , Shiyang Sun , Shifei Qi , Xiaohong Xu , Zhenhua Qiao

The advent of caloric materials for magnetocaloric, elastocaloric, and electrocaloric cooling is changing the landscape of solid state cooling technologies with potentials for high-efficiency and environmentally-friendly residential and…

Materials Science · Physics 2019-02-12 Huilong Hou , Peter Finkel , Margo Staruch , Jun Cui , Ichiro Takeuchi

The physical properties of metamagnetic Fe$_3$Ga$_4$ single crystals are investigated to explore the sensitivity of the magnetic states to temperature, magnetic field, and sample history. The data reveal a moderate anisotropy in the…

In magnetically doped thin-film topological insulators, aligning the magnetic moments generates a quantum anomalous Hall phase supporting a single chiral edge state. We show that as the system de-magnetizes, disorder from randomly oriented…

Mesoscale and Nanoscale Physics · Physics 2019-07-30 Arbel Haim , Roni Ilan , Jason Alicea

The pyrochlore vanadates are compelling candidates for next-generation dissipationless devices. Lu2V2O7 and Y2V2O7 are ferromagnetic insulators (Tc ~ 70 K) that are believed to exhibit the magnon Hall effect and are expected to host…

We show that thin layers of EuO, a ferromagnetic insulator, can be achieved by topotactic reduction under titanium of a Eu2O3 film deposited on top of a graphene template. The reduction process leads to the formation of a 7-nm thick EuO…

We theoretically investigate the thermal Hall transport of magnon-polarons in a two-dimensional honeycomb antiferromagnetic insulator under the influence of a perpendicular magnetic field, varying in strength. The application of a…

Mesoscale and Nanoscale Physics · Physics 2024-06-12 Gyungchoon Go , Heejun Yang , Je-Geun Park , Se Kwon Kim

MnP and FeP are show complex magnetic spiral states with geometric phase contributions to the anomalous Hall effect and the topological Hall effect, where both have thermoelectric Nernst counterparts. We use state of the art first principle…

Materials Science · Physics 2018-05-09 Jacob Gayles , Jonathan Noky , Claudia Felser , Yan Sun

The Weyl antiferromagnet Mn$_3$Sn has recently attracted significant attention as it exhibits various useful functions such as large anomalous Hall effect that are normally absent in antiferromagnets. Here we report the thin film…

Materials Science · Physics 2019-01-04 Tomoya Higo , Danru Qu , Yufan Li , C. L. Chien , Yoshichika Otani , Satoru Nakatsuji

Magnetic transition metal chalcogenides form an emerging platform for exploring spin-orbit driven Berry phase phenomena owing to the nontrivial interplay between topology and magnetism. Here we show that the anomalous Hall effect in…

The topological Hall effect in magnetic materials is considered the ultimate trademark of the skyrmion phase. The phenomenon is identified by distinct non-monotonic features in the Hall effect signal presumed to be the evidence of the…

Materials Science · Physics 2019-01-30 Alexander Gerber

Electrical tuning of magnetism is crucial for developing fast, compact, ultra-low power electronic devices. Multiferroics offer significant potential due to their ability to control magnetic via an electric field through magnetoelectric…

Mesoscale and Nanoscale Physics · Physics 2024-09-16 Yingying Wu , Zdenek Sofer , Wei Wang

We investigate the spin Hall magnetoresistance (SMR) at room temperature in thin film heterostructures of antiferromagnetic, insulating, (0001)-oriented alpha-Fe2O3 (hematite) and Pt. We measure their longitudinal and transverse…