Journal
CELL REPORTS PHYSICAL SCIENCE
Volume 2, Issue 2, Pages -Publisher
CELL PRESS
DOI: 10.1016/j.xcrp.2021.100347
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Funding
- National Key Research and Development Program of China [2016YFB0700702]
- National Basic Research Program of China [2015CB258400]
- National Natural Science Foundation of China [51402118, 51502101, 61674063]
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This study introduces a new type of CrVTe crystals with intrinsic infinitely soluble alloy ferromagnetism, allowing for precise and continuous adjustability of ferromagnetic properties within a certain range. This provides a highly tunable avenue for ferromagnetic 2D crystals and 2D spintronic devices.
Precise and continuous regulation of intrinsic two-dimensional (2D) ferromagnetism in van der Waals layered crystals is pivotal for the next generation of low-power electronic and spintronic devices. However, most van der Waals layered ferromagnetic crystals exhibit little adjustability of some ferromagnetic properties, such as saturation magnetization, coercivity, and easy axis of magnetization. Here, we report intrinsic, infinitely soluble alloy ferromagnetism in layered and quasi-layered CrVTe (CrxV1-3x/4Te2) crystals, which show intrinsic ferromagnetism with precise and continuous adjustability in a wide range, including Curie temperature (similar to 13.2-202.5 K), saturation magnetization (similar to 0.375-48.740 emu/g), coercivity (similar to 243.40-4930.33 Oe), magnetoresistance (approximately -0.14% to 32.39%), and anomalous Hall resistivity (similar to 0.1724-13.3148 mu Omega cm), and are different from most discovered van der Waals layered ferromagnetic crystals with highly limited concentrations of magnetic atoms. Our findings provide a highly tunable avenue for ferromagnetic 2D crystals and 2D spintronic devices.
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