نتایج جستجو برای: diluted magnetic semiconductor

تعداد نتایج: 406289  

2008
E. Liu P. Xiao J. S. Chen B. C. Lim L. Li

Ni doped ZnO (Zn1 xNixO) thin films were grown on quartz substrates via magnetron sputtering deposition process with the Ni concentrations of 5, 10 and 20 at.% in the films. The effects of Ni doping level and post annealing on the structural and magnetic properties of Zn1 xNixO films were investigated by means of X-ray diffraction (XRD), alternating gradient magnetometer (AGM) and photoluminesc...

Journal: :Physical review letters 2009
S D Ganichev S A Tarasenko V V Bel'kov P Olbrich W Eder D R Yakovlev V Kolkovsky W Zaleszczyk G Karczewski T Wojtowicz D Weiss

We study zero-bias spin separation in (Cd,Mn)Te/(Cd,Mg)Te diluted magnetic semiconductor structures. The spin current generated by electron gas heating under terahertz radiation is converted into a net electric current by applying an external magnetic field. The experiments show that the spin polarization of the magnetic ion system enhances drastically the conversion process due to giant Zeeman...

2016
Wenjian Liu Hongxia Zhang Jin-An Shi Zhongchang Wang Cheng Song Xiangrong Wang Siyuan Lu Xiangjun Zhou Lin Gu Dmitri V Louzguine-Luzgin Mingwei Chen Kefu Yao Na Chen

Emerging for future spintronic/electronic applications, magnetic semiconductors have stimulated intense interest due to their promises for new functionalities and device concepts. So far, the so-called diluted magnetic semiconductors attract many attentions, yet it remains challenging to increase their Curie temperatures above room temperature, particularly those based on III-V semiconductors. ...

2013
George Adrian Lungu Laura Elena Stoflea Liviu Cristian Tanase Ioana Cristina Bucur Nicoleta Răduţoiu Florin Vasiliu Ionel Mercioniu Victor Kuncser Cristian-Mihail Teodorescu

We report the synthesis of a room temperature ferromagnetic Mn-Ge system obtained by simple deposition of manganese on Ge(001), heated at relatively high temperature (starting with 250 °C). The samples were characterized by low energy electron diffraction (LEED), scanning tunneling microscopy (STM), high resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS)...

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