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Title: Direct photoluminescence probing of ferromagnetism in monolayer two-dimensional CrBr3
Authors: Zhang, Zhaowei
Shang, Jingzhi
Jiang, Chongyun
Abdullah Rasmita
Gao, Weibo
Yu, Ting
Keywords: Science::Physics
Issue Date: 2019
Source: Zhang, Z., Shang, J., Jiang, C., Abdullah Rasmita, Gao, W., & Yu, T. (2019). Direct photoluminescence probing of ferromagnetism in monolayer two-dimensional CrBr3. Nano Letters, 19(5), 3138-3142. doi:10.1021/acs.nanolett.9b00553
Journal: Nano Letters
Abstract: Atomically thin magnets are the key element to build up spintronics based on two-dimensional materials. The surface nature of two-dimensional ferromagnet opens up opportunities to improve the device performance efficiently. Here, we report the intrinsic ferromagnetism in atomically thin monolayer CrBr3, directly probed by polarization resolved magneto-photoluminescence. The spontaneous magnetization persists in monolayer CrBr3 with a Curie temperature of 34 K. The development of magnons by the thermal excitation is in line with the spin-wave theory. We attribute the layer-number-dependent hysteresis loops in thick layers to the magnetic domain structures. As a stable monolayer material in air, CrBr3 provides a convenient platform for fundamental physics and pushes the potential applications of the two-dimensional ferromagnetism.
ISSN: 1530-6984
DOI: 10.1021/acs.nanolett.9b00553
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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