TY - JOUR
T1 - Magnetic and transport properties of Sb2Te3 doped with high concentration of Cr
AU - Gupta, Sachin
AU - Kanai, Shun
AU - Matsukura, Fumihiro
AU - Ohno, Hideo
N1 - Funding Information:
Acknowledgments The authors thank T. Dietl, B. Jinnai, A. Okada, and S. Miyakozawa for the useful discussion and technical help. The work was supported in part by a Grant-in-Aid for Scientific Research from MEXT (No.
Publisher Copyright:
© 2017 The Japan Society of Applied Physics.
PY - 2017/10
Y1 - 2017/10
N2 - We report on the molecular beam epitaxy and properties of a magnetic topological insulator (TI): Cr-doped Sb2Te3. Composition analysis reveals that Cr replaces Sb, and X-ray diffraction confirms that a single-phase textured crystal structure can be obtained for (CrxSb1-x)2Te3 with x up to 0.44. A further increase in x results in phase separation or precipitates in the material. The Curie temperature TC increases with x up to 0.44 and reaches 250 K, which is the highest TC observed thus far in magnetically doped TIs.
AB - We report on the molecular beam epitaxy and properties of a magnetic topological insulator (TI): Cr-doped Sb2Te3. Composition analysis reveals that Cr replaces Sb, and X-ray diffraction confirms that a single-phase textured crystal structure can be obtained for (CrxSb1-x)2Te3 with x up to 0.44. A further increase in x results in phase separation or precipitates in the material. The Curie temperature TC increases with x up to 0.44 and reaches 250 K, which is the highest TC observed thus far in magnetically doped TIs.
UR - http://www.scopus.com/inward/record.url?scp=85032867959&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85032867959&partnerID=8YFLogxK
U2 - 10.7567/APEX.10.103001
DO - 10.7567/APEX.10.103001
M3 - Article
AN - SCOPUS:85032867959
SN - 1882-0778
VL - 10
JO - Applied Physics Express
JF - Applied Physics Express
IS - 10
M1 - 103001
ER -