Journal
SOLID STATE COMMUNICATIONS
Volume 150, Issue 13-14, Pages 598-601Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2009.12.041
Keywords
Manganites; Thin film by pulsed laser deposition; Thickness dependent phase diagram; Transport and magnetization
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Funding
- Pusan National University [(R15-2006-02-01002-0(2008)]
- Korea Research Foundation [KRF-2009-0070830]
- TEPCO Research Foundation
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La0.7Sr0.3MnO3 (LSMO) ultra-thin films have been grown by pulsed laser deposition in conditions optimized for cation stoichiometry and bulk-like physical properties in the thick limit. Through electrical transport and magnetic measurements, a phase diagram is constructed as a function of film thickness. With decreasing thickness, the LSMO films cross over at high temperatures from a paramagnetic metal to a paramagnetic insulator, and at low temperatures from a ferromagnetic metal to a ferromagnetic insulator, in close similarity to that observed for varying the electronic bandwidth in bulk manganites. (C) 2010 Elsevier Ltd. All rights reserved.
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