Magnetic, thermal and transport properties of phase-separated La(0.27)Nd(0.4)Ca(0.33)MnO(3)
文献类型：期刊论文
| 作者 | Wang, JZ ; Sun, JR ; Liu, GJ ; Hu, FX ; Chen, RJ ; Zhao, TY ; Shen, BG |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2008 |
| 卷号 | 20期号:32 |
| 关键词 | COLOSSAL MAGNETORESISTANCE GIANT MAGNETORESISTANCE METAL TRANSITION MANGANITES FILMS RESISTIVITY PEROVSKITE STATE LA0.67CA0.33MNO3 LA1-XSRXMNO3 |
| ISSN号 | 0953-8984 |
| 通讯作者 | Sun, JR: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | The magnetic, resistive and thermal properties of the phase-separated compound La(0.27)Nd(0.4)Ca(0.33)MnO(3) have been experimentally studied. The sample is found to experience a charge/orbital ordering transition at similar to 175 K and an antiferromagnetic (AFM) transition at similar to 156 K without a magnetic field. A magnetic field stabilizes the ferromagnetic ( FM) order and the field-induced FM phase coexists with the AFM phase under a field below 2 T in the temperature range below TC approximate to 110 K. However, the magnetic entropy change accompanying the AFM-FM transition is negligibly small when T(C) < T(N), grows rapidly as TC approaches TN under the driving of an applied field, and saturates at a value of similar to 4 J kg(-1) K(-1) when T(C) > T(N). A general relation between resistivity and magnetization, rho = A(0)T exp[(epsilon - 800m(2))/T] ( m = normalized magnetization), is established for the paramagnetic phase, which is also applicable to other compounds with different characters, such as the La(0.67)Ca(0.33)MnO(3) film and the La(0.474)Bi(0.193)Ca(0.33)Mn(0.994)Cr(0.006)O(3) and Eu(0.55)Sr(0.45)MnO(3) ceramics. In the FM state, the resistivity is quite sensitive to the change of spin alignment and exhibits an exponential decrease with magnetization rho = rho(0) exp(- 22.7m). Field-induced phase separation is believed to be responsible for the distinct properties of La(0.27)Nd(0.4)Ca(0.33)MnO(3). |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41457]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, JZ,Sun, JR,Liu, GJ,et al. Magnetic, thermal and transport properties of phase-separated La(0.27)Nd(0.4)Ca(0.33)MnO(3)[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2008,20(32). |
| APA | Wang, JZ.,Sun, JR.,Liu, GJ.,Hu, FX.,Chen, RJ.,...&Shen, BG.(2008).Magnetic, thermal and transport properties of phase-separated La(0.27)Nd(0.4)Ca(0.33)MnO(3).JOURNAL OF PHYSICS-CONDENSED MATTER,20(32). |
| MLA | Wang, JZ,et al."Magnetic, thermal and transport properties of phase-separated La(0.27)Nd(0.4)Ca(0.33)MnO(3)".JOURNAL OF PHYSICS-CONDENSED MATTER 20.32(2008). |
入库方式： OAI收割
来源：物理研究所
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