Influence of Mn-Doped Content on Ferromagnetism of Ga<suB>1-x</suB>Mn<suB>x</suB>N Film Grown by LP-MOVPE

Chin. Phys. Lett.

2006, Vol. 23

Issue (6): 1585-1587 DOI:

Original Articles

Influence of Mn-Doped Content on Ferromagnetism of Ga_1-xMn_xN Film Grown by LP-MOVPE

ZHANG Bin¹;YAO Shu-De¹;WANG Kun¹;DING Zhi-Bo¹;CHEN Zhi-Tao²;SU Yue-Yong²;ZHANG Guo-Yi²;MA Hong-Ji¹;NIE Rui¹;ZHANG Ya-Wei¹

¹Department of Technical Physics, School of Physics, Peking University, Beijing 100871 ²Department of Physics, School of Physics, Peking University, Beijing 100871

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ZHANG Bin, YAO Shu-De, WANG Kun et al 2006 Chin. Phys. Lett. 23 1585-1587

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Abstract The diluted magnetic semiconductor Ga_1-xMn_xN was achieved by low-pressure metal organic vapour-phase epitaxy (LP-MOVPE). Proton-induced x-ray emission was employed non-destructively, quickly and accurately to determine the Mn-doped content. The magnetic property was measured by a superconducting-quantum-interference-device (SQID) magnetometer. Apparent ferromagnetic hysteresis loops measured at or above room temperature are presented. No ferromagnetic secondary phases were detected by high-resolution x-ray diffraction. The experimental results show that the ferromagnetic signal firstly decreases and then increases with the increasing Mn-doped content from 0.23% to 4.69% and it is the weakest when Mn content is 0.51%. The annealing treatment could make the ferromagnetic property stronger.

Keywords: 75.50.Pp 75.70.Ak 32.30.Rj

Published: 01 June 2006

PACS:	75.50.Pp	(Magnetic semiconductors)
	75.70.Ak	(Magnetic properties of monolayers and thin films)
	32.30.Rj	(X-ray spectra)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2006/V23/I6/01585

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	ZHANG Bin
	YAO Shu-De
	WANG Kun
	DING Zhi-Bo
	CHEN Zhi-Tao
	SU Yue-Yong
	ZHANG Guo-Yi
	MA Hong-Ji
	NIE Rui
	ZHANG Ya-Wei

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