DataVXAdvanced Functional MaterialsPaper
journal article·2023-01

Self‐Intercalated Magnetic Heterostructures in 2D Chromium Telluride

Kangdi Niu, Guotao Qiu, Chuanshou Wang, Daiyue Li, Yutao Niu, Songge Li, Lixing Kang, Yongqing Cai, Mengjiao Han, Junhao Lin

Advanced Functional Materials· Volume 33· Issue 2
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Source abstract

Abstract

Emerging 2D magnetic heterojunctions attract substantial interest due to their potential applications in spintronics. Achieving magnetic phase engineering with structural integrity in 2D heterojunctions is of paramount importance for their magnetism manipulation. Herein, starting with chromium ditelluride (CrTe2) as the backbone framework, various lateral and vertical magnetic heterojunctions are obtained via self‐intercalated 2D chromium telluride (CrxTey). A Cr2Te3‐Cr5Te8 lateral heterojunction prototype is demonstrated for the manipulation of magnetic moments under different magnitudes of magnetic excitation, showing a sharply stepped hysteresis loop with a dual spin‐flip transition at high Curie temperatures up to 150 and 210 K by magneto‐optical Kerr measurement. High‐resolution scanning transmission electron microscopy and first‐principles calculations reveal a preferred random location of Cr intercalants at the phase boundary, allowing lowering energy associated with crystal field splitting. The overall structural rigidity of chromium‐telluride heterostructure with magnetic phase decoupled behaviors is promising for 2D spintronic devices.
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Research context

OpenAlex topics: 2D Materials and Applications · MXene and MAX Phase Materials · Perovskite Materials and Applications

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

Affiliations

Department of Physics Southern University of Science and Technology Shenzhen 518055 China

Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices Southern University of Science and Technology Shenzhen 518055 China

Institute of Applied Physics and Materials Engineering University of Macau Taipa Macau SAR 999078 China

School of Nano‐Tech and Nano‐Bionics University of Science and Technology of China Hefei 230026 China

Key Laboratory of Multifunctional Nanomaterials and Smart Systems Advanced Materials Division Suzhou Institute of Nano‐Tech and Nano‐Bionics Chinese Academy of Sciences Suzhou 215123 China

Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China

Funding

National Natural Science Foundation of China · Guangdong Innovative and Entrepreneurial Research Team Program · Natural Science Foundation of Guangdong Province · Science and Technology Development Fund

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