Enhanced Phonon Heat Conduction Correlated with Induced Ferromagnetic Metallic Phase in Pr<sub>0.65</sub>Ca<sub>0.35</sub>(Mn<sub>1-<i>Z</i></sub>Co<sub><i>Z</i></sub>)O<sub>3</sub>
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- Fujishiro Hiroyuki
- Faculty of Engineering, Iwate University, Morioka 020-8551
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- Kanoh Shingo
- Faculty of Engineering, Iwate University, Morioka 020-8551
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- Yamazaki Hajime
- Faculty of Engineering, Iwate University, Morioka 020-8551
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- Ikebe Manabu
- Faculty of Engineering, Iwate University, Morioka 020-8551
書誌事項
- タイトル別名
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- Enhanced Phonon Heat Conduction Correlated with Induced Ferromagnetic Metallic Phase in Pr0.65Ca0.35(Mn1-ZCoZ)O3.
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説明
The thermal conductivity κ(T), the diffusivity α(T) and the thermal dilatation dL(T)/L have been measured for Pr0.65Ca0.35MnO3 and Pr0.65Ca0.35(Mn1-ZCoZ)O3 (Z=0.02-0.10) crystals under the magnetic field of up to 5 T. By application of high magnetic fields or Co substitution for the Mn site, the ferromagnetic metallic (FM-M) state are induced and κ(T) and α(T) are drastically enhanced below the ferromagnetic transition temperature TF. The enhancement is closely related to the relaxation of the local Jahn-Teller lattice distortion due to the increased hole mobility in the FM-M phase.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 70 (9), 2616-2621, 2001
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679161534976
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- NII論文ID
- 210000103280
- 10009120687
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- NII書誌ID
- AA00704814
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- BIBCODE
- 2001JPSJ...70.2616F
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 5919617
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- en
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