溶胶-凝胶法制备的La2/3Ca1/3MnO3多晶样品零场下观测到的电阻随温度的变化同最近针对铁磁金属颗粒体而提出的模型进行了定量的比较性研究,基于这一研究, Mn基钙钛矿多晶样品中颗粒边界效应得以讨论.
The temperature dependence of resistivity obtained in the sol-gel prepared polycrystalline La2/3Ca1/3MnO3 samples is quantitatively studied in terms of a model recently proposed for ferromagnetic metallic granular systems. From this study, the grain boundary effect on the electrical transport is discussed for polycrystalline manganites.
参考文献
| [1] | S Jin et al.[J].Science,1994,264:413. |
| [2] | H Y Hwang et al.[J].Physical Review Letters,1996,77:2041. |
| [3] | I Bozovic;J N Eckstein .[J].Applied Surface Science,1997(113):189. |
| [4] | J Z Sun et al.[J].Applied Physics Letters,1996(69):3266. |
| [5] | 袁松柳,夏正才,刘胜,李衷怡,彭刚,唐洁,张国宏,张力江,冯文,熊曹水.Electrical Transport and Low-Field Magnetoresistance in La2/3Ca1/3MnO3/YSZ Composites[J].中国物理快报(英文版),2002(08):1168-1171. |
| [6] | S L Yuan;J Q Li et al.[J].Physical Review,2000,B62:5313. |
| [7] | R D Sanchez et al.[J].Applied Physics Letters,1996(68):134. |
| [8] | L E Hueso et al.[J].Journal of Applied Physics,2000(86):3881. |
| [9] | S L Yuan et al.[J].Europhysics Letters,2003(63):433. |
| [10] | S. L. Yuan.[J].Physical Review B,2003 |
| [11] | B. Abeles et al.[J].ADVANCES IN PHYSICS,1975(24):407. |
| [12] | M Jaime et al.[J].Physical Review,1999,B60:1028. |
| [13] | M Mayr et al.[J].Physical Review Letters,2000,86:135. |
| [14] | A de Andres et al.[J].Physical Review,1999,B60:732. |
| [15] | J. I. Gittleman;Y. Goldstein a;S Bozowski .[J].Physical Review,1972,B5:3609. |
| [16] | J. S. Helman;B. Abeles .[J].Physical Review Letters,1976,37:1429. |
| [17] | 冯尚申,焦正宽.用溶胶-凝胶法合成La1-xCaxMn1.03O3（x≥0.5）薄膜的电磁性质[J].低温物理学报,2001(03):211-215. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%