Structural and magnetic properties of GeMn layers; High Curie temperature ferromagnetism induced by self organized GeMn nano-columns

被引：11
|
作者：
Devillers, T.
Jamet, M.
Barski, A.
Poydenot, V.
Dujardin, R.
Guillemaud, P. Bayle
Rothman, J.
Amalric, E. Bellet
Cibert, J.
Mattana, R.
Tatarenko, S.
机构：
[1] CEA Grenoble, Serv Phys Mat & Microstruct, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble, France
[2] CEA Grenoble, Lab Infrarouge, Lab Elect Technol Informat, F-38054 Grenoble, France
[3] CNRS, Lab Louis Neel, F-38042 Grenoble 9, France
[4] Spectrometrie Phys Lab, F-38402 St Martin Dheres, France
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2007年 / 204卷 / 01期
关键词：
D O I：
10.1002/pssa.200673026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper we report on the structural and magnetic properties of GeMn layers grown on Ge(001). We show that for the optimized Mn concentration (6%) and for optimized growth temperature (close to 130 degrees C, GeMn samples exhibit a high Curie temperature (higher than 400 K) and Anomalous Hall Effect up to room temperature. Our GeMn layers grown at low temperature (70 degrees C to 130 degrees C) are composed of vertical Mn-rich nano-colums. Samples grown at temperatures higher than 130 degrees C contain GeMn nanoclusters.
引用
收藏
页码：130 / 135
页数：6
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