| Transport and stability properties of the charge ordered state for Sm1-xCaxMnO3 (0.4 <= x <= 0.8) |
| T. Qian; G. Li; Q. Han; X. Y. Guo; Y. Liu; J. F. Qu; X. G. Li
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| 2004
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| 发表期刊 | Journal of Applied Physics
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| ISSN | 0021-8979
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| 卷号 | 95期号:3页码:977-981 |
| 摘要 | The structure and transport properties of Sm1-xCaxMnO3 with 0.4less than or equal toxless than or equal to0.8 were investigated. With decreasing temperature from 350 K, cooperative Jahn-Teller (JT) distortion develops, leading to the formation of a charge ordered (CO) state and anomalies in the lattice parameters and resistivities. At low temperature the magnetoresistance effect originates from the polarization of the localized t(2g) spins under the magnetic field and decreases with the increase in Ca2+ content x, whereas the stability of the CO state at the CO transition temperature T-CO strongly depends on both Ca2+ content and cooperative JT distortion. These interesting phenomena sufficiently confirm the close relationship among charge, lattice, spin, and orbital degrees of freedom. (C) 2004 American Institute of Physics. |
| 部门归属 | univ sci & technol china, dept mat sci & engn, struct res lab, hefei 230026, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;li, xg (reprint author), univ sci & technol china, dept mat sci & engn, struct res lab, hefei 230026, peoples r china;lixg@ustc.edu.cn
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| 关键词 | Metal-insulator-transition
Magnetic Phase-diagrams
Double Exchange
Manganites
Field
Magnetoresistance
La1-xcaxmno3
Diffraction
Bandwidth
X=0.25
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| URL | 查看原文
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| WOS记录号 | WOS:000188281800028
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/35516
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
T. Qian,G. Li,Q. Han,et al. Transport and stability properties of the charge ordered state for Sm1-xCaxMnO3 (0.4 <= x <= 0.8)[J]. Journal of Applied Physics,2004,95(3):977-981.
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| APA |
T. Qian.,G. Li.,Q. Han.,X. Y. Guo.,Y. Liu.,...&X. G. Li.(2004).Transport and stability properties of the charge ordered state for Sm1-xCaxMnO3 (0.4 <= x <= 0.8).Journal of Applied Physics,95(3),977-981.
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| MLA |
T. Qian,et al."Transport and stability properties of the charge ordered state for Sm1-xCaxMnO3 (0.4 <= x <= 0.8)".Journal of Applied Physics 95.3(2004):977-981.
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