Gate Tunable Labyrinth Domain Structures in a van der Waals Itinerant Ferromagnet Cr7Te8

扫码查看

原文链接

万方数据

外文摘要：Manipulating magnetic domain structure plays a key role in advanced spintronics devices.Theoretical ra-tionale is that the labyrinthine domain structure,normally appearing in ferromagnetic thin films with strong magnetic anisotropy,shows a great potential to increase data storage density for designing magnetic nonvolatile memory and logic devices.However,an electrical control of labyrinthine domain structure remains elusive.Here,we demonstrate the gate-driven evolution of labyrinthine domain structures in an itinerant ferromagnet Cr7Te8.By combining electric transport measurements and micromagnetic finite difference simulations,we find that the hysteresis loop of anomalous Hall effect in Cr7Te8 samples shows distinct features corresponding to the generation of labyrinthine domain structures.The labyrinthine domain structures are found to be electrically tunable via Li-electrolyte gating,and such gate-driven evolution in Cr7Te8 originates from the reduction of the magnetic anisotropic energy with gating,revealed by our micromagnetic simulations.Our results on the gate control of anomalous Hall effect in an itinerant magnetic material provide an opportunity to understand the formation and evolution of labyrinthine domain structures,paving a new route towards electric-field driven spintronics.

作者：

孟奎、李泽亚、申艺成、毕翔宇、饶俊豪、钱玉婷、高战胜、陈朋、邱彩玉、秦峰、吴金雄、罗锋、黄俊伟、袁洪涛

展开 >

作者单位：

National Laboratory of Solid State Microstructures,Jiangsu Key Laboratory of Artificial Functional Materials,College of Engineering and Applied Sciences,and Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210000,China

Center for the Physics of Low-Dimensional Materials,Henan Joint International Research Laboratory of New Energy Materials and Devices,School of Physics and Electronics,Henan University,Kaifeng 475004,China

Tianjin Key Lab for Rare Earth Materials and Applications,Center for Rare Earth and Inorganic Functional Materials,Smart Sensor Interdisciplinary Science Center,School of Materials Science and Engineering,Nankai University,Tianjin 300350,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaScience and Technology Development Project of Henan ProvinceChina Postdoctoral Science Foundation

项目编号：

92365203520721685186114520152302180122042322021YFA12029012421022301402024M750775

出版年：

2024

DOI：

10.1088/0256-307X/41/9/097501

中国物理快报(英文版)

中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDEI

影响因子：0.515

ISSN：0256-307X

年,卷(期)：2024.41(9)