کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8145157 1524066 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A tunable spatial spin splitter based on a spin-orbit-coupling modulated magnetic nanostructure
ترجمه فارسی عنوان
یک تقسیم کننده اسپین فضایی قابل تنظیم بر اساس یک ساختار مغناطیسی اسپین یا مدار
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک اتمی و مولکولی و اپتیک
چکیده انگلیسی
We investigate theoretically the spin-dependent Goos-Hänchen (GH) effect in a magnetic nanostructure modulated by spin-orbit coupling (SOC), which can be experimentally realized by depositing a ferromagnetic (FM) stripe and a Schottky-metal (SM) stripe on the top and bottom of an InAs/AlxIn1−xAs heterostructure, respectively. We consider two kinds of different SOCs (Rashba and Dresselhaus types), and calculate the GH shift and its spin polarization for the electrons across the device. Results show that the GH shift still is spin-polarized after including the SOC, and the behavior of the spin-polarized electrons can be manipulated by the Rashba and/or Dresselhaus SOC. These interesting properties provide an alternative scheme for spatially realizing spin injection into a semiconductor, and the magnetic nanostructure can be employed as a controllable spatial spin splitter for a spin-polarized source in spintronics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Physics - Volume 56, Issue 3, June 2018, Pages 1212-1219
نویسندگان
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