Spin Transport in a Magnetic Superlattice with Broken Two-Fold Symmetry

被引：3

作者：

Huo Qiu-Hong ^{[1
]}

Wang Ru-Zhi ^{[1
]}

Chen Si-Ying ^{[2
]}

Xue Kun ^{[3
,4
]}

Yan Hui ^{[1
]}

机构：

[1] Beijing Univ Technol, Coll Mat Sci & Engn, Lab Thin Film Mat, Beijing 100124, Peoples R China

[2] Beijing Inst Technol, Sch Optoelect, Beijing 100081, Peoples R China

[3] Univ New S Wales, Australian Res Council, Ctr Excellence Quantum Comp Technol, Sydney, NSW 2052, Australia

[4] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

来源：

CHINESE PHYSICS LETTERS | 2010年 / 27卷 / 06期

基金：

北京市自然科学基金;

关键词：

2-DIMENSIONAL ELECTRON-GAS; BALLISTIC CONDUCTANCE; BARRIERS; GRAPHENE;

D O I：

10.1088/0256-307X/27/6/067202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We theoretically investigate the spin-dependent electron transport properties in a magnetic superlattice (MSL) with broken two-fold symmetry. An abnormal barrier in the MSL can break the two-fold symmetry of the system when it is not located at the two-fold symmetry center. A two-fold symmetry breaking factor is introduced to describe the two-fold symmetry breaking degree. Our numerical calculations show that the transmission, the conductance and the spin polarization are non-trivially dependent on the two-fold symmetry breaking factor. When the factor is large enough, the polarization almost approaches 100% in a proper Fermi energy range. However, for two mutually mirror-symmetric MSLs with the same factor, their polarizations may be either similar or distinct. These features provide some clues to the design and applications of MSL-based spin filters or spin-dependent tunneling electron devices.

引用

页数：4

共 50 条

[41] Two-fold extrusion approaches to tamoxifen.
Alcaraz, AA
Guziec, FS
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2002, 224 : U313 - U313
[42] Solving quintic equations by two-fold origami
Nishimura, Yasuzo
FORUM MATHEMATICUM, 2015, 27 (03) : 1379 - 1387
[43] THE TWO-FOLD DRAMATIC STRUCTURE IN SOPHOCLES AND EURIPIDES
SZLEZAK, TA
POETICA-ZEITSCHRIFT FUR SPRACH-UND LITERATURWISSENSCHAFT, 1982, 14 (1-2): : 1 - 23
[44] Two-fold sensor approach for NOx reduction
不详
DIESEL PROGRESS NORTH AMERICAN EDITION, 2003, 69 (08): : 55 - 55
[45] The two-fold significance of calcium for the development of bones
Stoeltzner, W
ARCHIV FUR DIE GESAMTE PHYSIOLOGIE DES MENSCHEN UND DER TIERE, 1908, 122 (10/11): : 599 - 604
[46] The Two-Fold Singularity of Discontinuous Vector Fields
Jeffrey, M. R.
Colombo, A.
SIAM JOURNAL ON APPLIED DYNAMICAL SYSTEMS, 2009, 8 (02): : 624 - 640
[47] The two-fold thought of Deleuze and Guattari.
Bogue, Ronald
INTERNATIONAL STUDIES IN PHILOSOPHY, 2005, 37 (04) : 168 - 169
[48] Vertical Spin-Wave Transport in Magnonic Waveguides With Broken Translation Symmetry
Martyshkin, Alexandr A.
Beginin, Evgeniy N.
Stognij, Alexandr I.
Nikitov, Sergey A.
Sadovnikov, Alexandr V.
IEEE MAGNETICS LETTERS, 2019, 10
[49] Emergence of two-fold non-Hermitian spectral topology through synthetic spin engineering
Sarkar, Ronika
Banerjee, Ayan
Narayan, Awadhesh
NEW JOURNAL OF PHYSICS, 2024, 26 (06):
[50] Synthesis, crystal structure, and magnetic properties of a two-fold interpenetrated diamondoid open framework
Wu, Jing-Yun
Cheng, Fu-Yin
Chiang, Ming-Hsi
JOURNAL OF SOLID STATE CHEMISTRY, 2016, 242 : 8 - 13

← 1 2 3 4 5 →