| 题名 |
From Tunnel-Type GMR to Intrinsic CMR in Granular Perovskite La0.83Sr0.17MnOz |
| 作者 |
Ning Zhang；Sheng Zhang；Wei-Ping Ding；Ding-Yu Xing；You-Wei Du |
| 关键词 | |
| 期刊名称 |
Chinese Journal of Physics |
| 卷期/出版年月 |
36卷2期（1998 / 04 / 01） |
| 页次 |
128 - 135 |
| 内容语文 |
英文 |
| 英文摘要 |
The transport properties of granular perovskite La0.83Sr0.17MnOz, were investigated. Tunnel-type giant magnetoresistance (GMR) and intrinsic crystal colossal magnetoresistance (CMR) have been observed simultaneously. With grain growth, the GMR effect gradually disappears whereas the intrinsic CMR effect is enhanced. These phenomena suggest that the tunnel-type GMR is strongly grain-size dependent and related to the properties of the interfaces between the grains. |
| 主题分类 |
基礎與應用科學 >
物理 |
