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Home > Issues > Volume 12 (2007) > No.4(pp.133-161)Ferromagnetism and p-type Conductivity in Laser-deposited (Zn,Mn)O Thin Films Codoped by Mg and P
Journal of Magnetics, Volume 12, Number 4, 31 Dec 2007, Pages 144-148
Hyo-Jin Kim* 
(Department of Nano Information Systems Engineering, School of Nano Science and Technology, Chungnam National University), Hyoun-Soo Kim(Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology), Do-Jin Kim(Department of Nano Information Systems Engineering, School of Nano Science and Technology, Chungnam National University), Young-Eon Ihm(Department of Nano Information Systems Engineering, School of Nano Science and Technology, Chungnam National University), Woong-Kil Choo(Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology), Chan-Yong Hwang(Advanced Industrial Technology Group, Division of Advanced Technology, Korea Research Institute of Standards and Science)
(Department of Nano Information Systems Engineering, School of Nano Science and Technology, Chungnam National University), Hyoun-Soo Kim(Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology), Do-Jin Kim(Department of Nano Information Systems Engineering, School of Nano Science and Technology, Chungnam National University), Young-Eon Ihm(Department of Nano Information Systems Engineering, School of Nano Science and Technology, Chungnam National University), Woong-Kil Choo(Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology), Chan-Yong Hwang(Advanced Industrial Technology Group, Division of Advanced Technology, Korea Research Institute of Standards and Science)
Abstract
We report on the observation of p-type conductivity and ferromagnetism in diluted magnetic semiconductor (Zn0.97Mg0.01Mn0.02)O:P films grown on SiO2/Si substrates by pulsed laser deposition. The p-type conduction with hole concentration over 1018cm-3 is obtained by codoping of Mg and P followed by rapid thermal annealing in an atmosphere. Structural and compositional analyses for the p-type (Zn0.97Mg0.01Mn0.02)O:P films annealed at 800℃ indicates that highly c-axis oriented homogeneous films were grown without any detectable formation of secondary phases. The films were found to be transparent in the visible range. The magnetic measurements clearly revealed an enhancement of room temperature ferromagnetism by p-type doping.
Keywords: diluted magnetic semiconductors; Zinc oxide; ferromagnetism; spintronics
DOI: 10.4283/JMAG.2007.12.4.144
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