Effects of rapid thermal annealing on the ferromagnetic properties of sputtered Zn1−x(Co0.5Fe0.5)xO thin films
作者： Young Mok Cho , Woong Kil Choo , Hyojin Kim , Dojin Kim , YoungEon Ihm
DOI: 10.1063/1.1478146
关键词: Ferromagnetism 、 Curie temperature 、 Annealing (metallurgy) 、 Ferromagnetic material properties 、 Magnetization 、 Condensed matter physics 、 Wurtzite crystal structure 、 Spontaneous magnetization 、 Magnetic semiconductor 、 Materials science
摘要: We have investigated the effects of rapid thermal annealing under vacuum on CoFe-doped ZnO [Zn1−x(Co0.5Fe0.5)xO] films grown by reactive magnetron co-sputtering. At least up to x=0.15, single phase same wurtzite structure as pure ZnO. Ferromagnetism was observed for films. found that leads a remarkable increase in spontaneous magnetization well electron concentration. The also significant Curie temperature (TC), resulting room ferromagnetism with TC>300 K
harvard.edu
scitation.org
aip.org
sci-hub.se 参考文章(12)
Y. Fukuma, H. Asada, M. Arifuku, T. Koyanagi, Carrier-enhanced ferromagnetism in Ge1−xMnxTe Applied Physics Letters. ,vol. 80, pp. 1013- 1015 ,(2002) , 10.1063/1.1445477
H. Ohno, D. Chiba, F. Matsukura, T. Omiya, E. Abe, T. Dietl, Y. Ohno, K. Ohtani, Electric-field control of ferromagnetism Nature. ,vol. 408, pp. 944- 946 ,(2000) , 10.1038/35050040
Y. Ohno, D. K. Young, B. Beschoten, F. Matsukura, H. Ohno, D. D. Awschalom, Electrical spin injection in a ferromagnetic semiconductor heterostructure Nature. ,vol. 402, pp. 790- 792 ,(1999) , 10.1038/45509
T. Fukumura, Zhengwu Jin, A. Ohtomo, H. Koinuma, M. Kawasaki, An oxide-diluted magnetic semiconductor: Mn-doped ZnO Applied Physics Letters. ,vol. 75, pp. 3366- 3368 ,(1999) , 10.1063/1.125353
H. Ohno, Making Nonmagnetic Semiconductors Ferromagnetic Science. ,vol. 281, pp. 951- 956 ,(1998) , 10.1126/SCIENCE.281.5379.951
S. Koshihara, A. Oiwa, M. Hirasawa, S. Katsumoto, Y. Iye, C. Urano, H. Takagi, H. Munekata, FERROMAGNETIC ORDER INDUCED BY PHOTOGENERATED CARRIERS IN MAGNETIC III-V SEMICONDUCTOR HETEROSTRUCTURES OF (IN,MN)AS/GASB Physical Review Letters. ,vol. 78, pp. 4617- 4620 ,(1997) , 10.1103/PHYSREVLETT.78.4617
Kazunori Sato, Hiroshi Katayama-Yoshida, Stabilization of Ferromagnetic States by Electron Doping in Fe-, Co- or Ni-Doped ZnO Japanese Journal of Applied Physics. ,vol. 40, pp. 334- ,(2001) , 10.1143/JJAP.40.L334
H. Ohno, H. Munekata, T. Penney, S. von Molnár, L. L. Chang, Magnetotransport properties of p-type (In,Mn)As diluted magnetic III-V semiconductors. Physical Review Letters. ,vol. 68, pp. 2664- 2667 ,(1992) , 10.1103/PHYSREVLETT.68.2664
Zhengwu Jin, T. Fukumura, M. Kawasaki, K. Ando, H. Saito, T. Sekiguchi, Y. Z. Yoo, M. Murakami, Y. Matsumoto, T. Hasegawa, H. Koinuma, High throughput fabrication of transition-metal-doped epitaxial ZnO thin films: A series of oxide-diluted magnetic semiconductors and their properties Applied Physics Letters. ,vol. 78, pp. 3824- 3826 ,(2001) , 10.1063/1.1377856
Tomasz Dietl, o H Ohno, a F Matsukura, J Cibert, e D Ferrand, Zener Model Description of Ferromagnetism in Zinc-Blende Magnetic Semiconductors Science. ,vol. 287, pp. 1019- 1022 ,(2000) , 10.1126/SCIENCE.287.5455.1019