DataVXACS NanoPaper
journal article·2026-06-09

All-Electric Low-Power Switching of Perpendicular Magnetization by Low-Crystal-Symmetry Weyl Semimetal NbIrTe 4

Jia-Min Lai, Rui Hou, Zhi Yan, Mingfen Jin, Fei Wang, Junnan Guo, Yajing Zhang, Kaiwei Guo, Pengnan Zhao, Bingyue Bian, Yaohui Du, Wentian Lu, Hongru Wang, Zhonghai Yu, Guoyi Shi, Liang Liu, Guoqiang Yu, Lishu Zhang, Delin Zhang, Yong Jiang, Xiaohong Xu

ACS Nano· Volume 20· Issue 22
Publisher page
Source abstract

Abstract

The development of energy-efficient spin–orbit torque devices hinges on realizing field-free switching of perpendicular magnetization with minimal power consumption. Here, we demonstrate robust field-free switching of perpendicular magnetization at room temperature, enabled by out-of-plane spins generated in the Weyl semimetal NbIrTe 4 . The critical switching current density is 3.6 × 10 6 A/cm 2, corresponding to the lowest power consumption reported among intrinsic low-crystal-symmetry materials, 16 times lower than that of WTe 2 and 4 times lower than that of TaIrTe 4 . The switching polarity remains stable up to an in-plane magnetic field of 19 mT, confirming the robustness of the field-free operation against magnetic perturbations. Loop-shift measurements and first-principles calculations consistently reveal a large out-of-plane spin Hall conductivity in NbIrTe 4, σ s, z ≈ 2.61 × 10 4 (ℏ/2e)(Ω·m) −1, responsible for the highly efficient and stable magnetization switching. These findings position NbIrTe 4 as a compelling member of the emerging class of low-symmetry materials and offer a promising pathway toward the development of energy-efficient, all-electric spin–orbit torque devices.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Topological Materials and Phenomena · 2D Materials and Applications · Iron-based superconductors research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education, School of Materials Science and Engineering

Shanxi Normal University

School of Material Science and Engineering

Tiangong University

Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials, Ministry of Education

Shandong University

School of Science and Engineering

The Chinese University of Hong Kong

Tsung-Dao Lee Institute, Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy

Shanghai Jiao Tong University

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics

Chinese Academy of Sciences

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Shanxi Scholarship Council of China · Central Government?s Special Fund for Local Science and Technology Development · Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province · Basic Research Plan of Shanxi Province · Shanxi Province Postgraduate Education Innovation Plan

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