Evidence for the charge-ordered state and phase separation at room temperature in half-doped La0.5Ca0.5MnO3 films

被引：28
作者：
Park, S. Y.
Hyun, Y. H.
Lee, Y. P. [1 ]
Svetchnikov, V. L.
Kim, K. W.
Prokhorov, V. G.
机构：
[1] Hanyang Univ, Quantum Photon Sci Res Ctr, Seoul 133791, South Korea
[2] Hanyang Univ, Dept Phys, Seoul 133791, South Korea
[3] Delft Univ Technol, Natl Ctr HREM, NL-2628 AL Delft, Netherlands
[4] Sunmoon Univ, Dept Phys, Choongnam 336840, South Korea
[5] Natl Acad Sci Ukraine, Inst Met Phys, UA-03142 Kiev, Ukraine
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 05期
关键词：
D O I：
10.1063/1.2243340
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The microstructure and the magnetotransport properties of La0.5Ca0.5MnO3 films, prepared by rf magnetron sputtering on a LaAlO3 substrate, have been investigated. The electron-diffraction and the high-resolution electron-microscopy studies reveal the coexistence at room temperature of double-period modulated (charge-ordered) and unmodulated (charge-disordered) phases. It is suggested that the high-temperature fragmentation of film results in the magnetic-phase-separated state at low temperatures. (c) 2006 American Institute of Physics.
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页数：3
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