8-Pmmn硼罗芬基铁磁/绝缘体/铁磁结的自旋谷解析输运和隧穿磁阻

IF 2.6 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physics Letters A Pub Date : 2025-07-02 DOI:10.1016/j.physleta.2025.130787

Junru Du , Shuo Ma , Hongmei Zhang , De Liu

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引用次数: 0

摘要

研究了8-Pmmn硼烯基铁磁/绝缘体/铁磁结中的自旋谷解析输运。相同自旋和不同谷指数的传输概率相对于横波矢量是对称的。通过改变旋转角度，可以调节传输间隙，提供完美的自旋谷滤波。与平行排列的电导率表现出明显的自旋依赖性相比，反平行排列的电导率与自旋和谷指数无关。100% TMR平台对旋转角度具有鲁棒性，其有效宽度随带隙的增加而保持不变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Spin-valley resolved transport and tunneling magnetoresistance in 8-Pmmn borophene-based ferromagnetic/insulator/ferromagnetic junction

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Spin-valley resolved transport and tunneling magnetoresistance in 8-Pmmn borophene-based ferromagnetic/insulator/ferromagnetic junction

The spin-valley resolved transport in an 8-Pmmn borophene-based ferromagnetic/insulator/ferromagnetic junction is investigated. The transmission probabilities for same spin and different valley indices are symmetric with respect to the transverse wave vector. By changing the rotation angle, the transmission gap can be adjusted to provide the perfect spin-valley filtering. Compared to the parallel alignment where the conductance exhibits obvious spin dependence, the conductance for the antiparallel alignment is independent of spin and valley index. The 100% TMR plateau is robust against the rotation angle and its effective width remains unchanged as the band gap increases.

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来源期刊

Physics Letters A 物理-物理：综合

CiteScore

5.10

自引率

3.80%

发文量

493

审稿时长

30 days

期刊介绍： Physics Letters A offers an exciting publication outlet for novel and frontier physics. It encourages the submission of new research on: condensed matter physics, theoretical physics, nonlinear science, statistical physics, mathematical and computational physics, general and cross-disciplinary physics (including foundations), atomic, molecular and cluster physics, plasma and fluid physics, optical physics, biological physics and nanoscience. No articles on High Energy and Nuclear Physics are published in Physics Letters A. The journal''s high standard and wide dissemination ensures a broad readership amongst the physics community. Rapid publication times and flexible length restrictions give Physics Letters A the edge over other journals in the field.