Correction to the Metal-Insulator Transition Temperature due toCation Size and Strain Effects for Colossal MagnetoresistancePerovskites
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YUAN Song-Liu,
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LIU Jie,
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XIA Zheng-Cai,
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PENG Gang,
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TANG Jie,
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ZHANG Guo-Hong,
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ZHANG Li-Jiang,
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FENG Wen,
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LI Zhong-Yi,
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YANG Ying-Ping,
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LIU Li,
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XIONG Cao-Shui
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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 La2/3(Ca1-xBax)1/3MnO3, providing a strong support to this approach.
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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. Correction to the Metal-Insulator Transition Temperature due toCation Size and Strain Effects for Colossal MagnetoresistancePerovskites[J]. Chin. Phys. Lett., 2002, 19(11): 1675-1678.
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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. Correction to the Metal-Insulator Transition Temperature due toCation Size and Strain Effects for Colossal MagnetoresistancePerovskites[J]. Chin. Phys. Lett., 2002, 19(11): 1675-1678.
|
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. Correction to the Metal-Insulator Transition Temperature due toCation Size and Strain Effects for Colossal MagnetoresistancePerovskites[J]. Chin. Phys. Lett., 2002, 19(11): 1675-1678.
|
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. Correction to the Metal-Insulator Transition Temperature due toCation Size and Strain Effects for Colossal MagnetoresistancePerovskites[J]. Chin. Phys. Lett., 2002, 19(11): 1675-1678.
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