Chromium sulfide halide monolayers: intrinsic ferromagnetic semiconductors with large spin polarization and high carrier mobility†,Nanoscale

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Chromium sulfide halide monolayers: intrinsic ferromagnetic semiconductors with large spin polarization and high carrier mobility†
Nanoscale ( IF 5.8 ) Pub Date : 2018-09-10 00:00:00 , DOI: 10.1039/c8nr06368k
Yilv Guo _{1,

2,

3,

4} , Yehui Zhang _{1,

2,

3,

4} , Shijun Yuan _{1,

2,

3,

4} , Bing Wang _{1,

2,

3,

4} , Jinlan Wang _{1,

2,

3,

4}

Affiliation

Two-dimensional (2D) ferromagnetic semiconductors (FMSs) are desirable for their potential to enhance the functionality of semiconductor devices via the utilization of spin degrees of freedom. Herein, we predict a series of intrinsic FMS monolayers in the chromium sulfide halide CrSX (X = Cl, Br, I) family with large spin polarization, large magnetic moments and high Curie temperatures. Such CrSCl and CrSBr monolayers also have high hole mobilities up to 6.6 × 10³ and 5.3 × 10³ cm² V⁻¹ s⁻¹, respectively. Furthermore, these 2D monolayers exhibit excellent dynamic and thermal stabilities and a small exfoliation energy from the bulk. These intrinsic FMSs with their high mobilities may provide competitive candidates for next-generation spintronics and electronics.

中文翻译：

硫化铬卤化物单层：具有大自旋极化和高载流子迁移率的本征铁磁半导体†

二维（2D）铁磁半导体（FMS）具有潜力，可以通过利用自旋自由度来增强半导体器件的功能。在本文中，我们预测了自旋极化，大磁矩和居里温度高的硫化铬卤化物CrSX（X = Cl，Br，I）族中的一系列固有FMS单层。此类CrSCl和CrSBr单层还具有高达6.6×10 ³和5.3×10 ³ cm ² V ^-1 s ^-1的高空穴迁移率，分别。此外，这些2D单分子层还具有出色的动态和热稳定性，并且从主体中剥落的能量很小。这些具有高迁移率的固有FMS可能为下一代自旋电子学和电子学提供有竞争力的候选人。

更新日期：2018-09-10

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