中国物理B ›› 2005, Vol. 14 ›› Issue (9): 1879-1881.doi: 10.1088/1009-1963/14/9/034
丰家峰1, 黄延红1, 赵见高1, 韩秀峰1, 詹文山1, 赵昆2, 黄康权3
Feng Jia-Feng (丰家峰)a, Zhao Kun (赵昆)abc, Huang Yan-Hong (黄延红)a, Zhao Jian-Gao (赵见高)a, Han Xiu-Feng (韩秀峰)a, Zhan Wen-Shan (詹文山)a, Wong Hong-Kuen (黄康权)d
摘要: The perovskite bilayers La0.67Ca0.33MnO3 (LCMO) (100nm) / La0.67Sr0.33MnO3(LSMO) (100 nm) and LSMO (100 nm) / LCMO (100 nm) are fabricated by a facing-target sputtering technique. Their transport and magnetic properties are investigated. It is found that the transport properties between them are different obviously due to distinguishable structures, and the different lattice strains in both films result in the difference of metal-to-insulator transition. Only single-step magnetization loop appears in our bilayers from 5K to 320K, and the coercive force of LSMO/LCMO varies irregularly with a minimum \sim 2387A/m which is lower than that of LCMO and LSMO single layer films. The behaviour is explained by some magnetic coupling.
中图分类号: (Magnetic oxides)