Biaxial-stress-driven full spin polarization in ferromagnetic hexagonal chromium telluride

Direct Evidence of Ferromagnetic Spin Polarization in Gold Nanoparticles

Direct observation of ferromagnetic spin polarization in gold nanoparticles.

We report the first direct observation of ferromagnetic spin polarization of Au nanoparticles with a mean diameter of 1.9 nm using x-ray magnetic circular dichroism (XMCD). Owing to the element selectivity of XMCD, only the gold magnetization is explored. Magnetization of gold atoms as estimated by XMCD shows a good agreement with results obtained by conventional magnetometry. This evidences in...

Spin polarization and electronic structure of ferromagnetic Mn5Ge3 epilayers

Semiconductor spintronics has recently been recognized for its potential to combine the spin selectivity and nonvolatility of ferromagnetic compounds with the ability to fabricate hybrid thin-film devices naturally integrated with conventional semiconductors [1]. Yet in order to succeed in technological applications one has to be able to introduce roomtemperature spin-polarized materials that a...

Current spin polarization and spin injection efficiency in ZnO-based ferromagnetic semiconductor junctions

Gang JI 1,2,3)∗, Ze ZHANG , Yanxue CHEN , Shishen YAN , Yihua LIU 3) and Liangmo MEI 3) 1) Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, China 2) Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China 3) School of Physics and National Key Laboratory of Crystal Materials, Shandong University, Jinan 250100,...

Spin-transfer-driven ferromagnetic resonance of individual nanomagnets.

We demonstrate a technique that enables ferromagnetic resonance measurements of the normal modes for magnetic excitations in individual nanoscale ferromagnets, smaller in volume by more than a factor of 50 compared to individual ferromagnetic samples measured by other resonance techniques. Studies of the resonance frequencies, amplitudes, linewidths, and line shapes as a function of microwave p...