Correction to the Metal-Insulator Transition Temperature due to
Cation Size and Strain Effects for Colossal Magnetoresistance
Perovskites

Chin. Phys. Lett.

2002, Vol. 19

Issue (11): 1675-1678 DOI:

Original Articles

Correction to the Metal-Insulator Transition Temperature due to Cation Size and Strain Effects for Colossal Magnetoresistance Perovskites

YUAN Song-Liu;LIU Jie;XIA Zheng-Cai;PENG Gang;TANG Jie;ZHANG Guo-Hong;ZHANG Li-Jiang;FENG Wen;LI Zhong-Yi;YANG Ying-Ping;LIU Li;XIONG Cao-Shui

Department of Physics, Huazhong University of Science and Technology, Wuhan 430074

Cite this article:

YUAN Song-Liu, LIU Jie, XIA Zheng-Cai et al 2002 Chin. Phys. Lett. 19 1675-1678

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Abstract A phenomenological expression of the metal-insulator transition temperature is proposed for AMnO₃ manganese perovskites by taking into account the distortion of Mn-O-Mn bond due to A-cation size and the strain-dependent effect due to performed Jahn-Teller distortions, independently. Using reasonable physical parameters, the calculated results give excellent agreement with experimental data obtained in polycrystalline samples of La_2/3(Ca_1-xBa_x)_1/3MnO₃, providing a strong support to this approach.

Keywords: 71.30.+h 75.30.Vn 75.30.Kz

Published: 01 November 2002

PACS:	71.30.+h	(Metal-insulator transitions and other electronic transitions)
	75.30.Vn
	75.30.Kz	(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I11/01675

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	YUAN Song-Liu
	LIU Jie
	XIA Zheng-Cai
	PENG Gang
	TANG Jie
	ZHANG Guo-Hong
	ZHANG Li-Jiang
	FENG Wen
	LI Zhong-Yi
	YANG Ying-Ping
	LIU Li
	XIONG Cao-Shui

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