High-Temperature Magnetic Insulating Phase in UltrathinLa0.67Sr0.33MnO3Films
| Autor: | Guus Rijnders, Mark Huijben, Arturas Vailionis, Hans Boschker, Jaap Kautz, Gertjan Koster, David H.A. Blank, Evert Pieter Houwman, Wolter Siemons |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Condensed matter physics Magnetism General Physics and Astronomy Conductivity Condensed Matter::Materials Science Electrical resistivity and conductivity Condensed Matter::Superconductivity Phase (matter) Antiferromagnetism Curie temperature Condensed Matter::Strongly Correlated Electrons Thin film Quantum tunnelling |
| Zdroj: | Physical Review Letters. 109 |
| ISSN: | 1079-7114 0031-9007 |
| Popis: | We present a study of the thickness dependence of magnetism and electrical conductivity in ultrathin La0.67Sr0.33MnO3 films grown on SrTiO3 (110) substrates. We found a critical thickness of 10 unit cells below which the conductivity of the films disappeared and simultaneously the Curie temperature increased, indicating a magnetic insulating phase at room temperature. These samples have a Curie temperature of about 560 K with a significant saturation magnetization of 1.2±0.2μB/Mn. The canted antiferromagnetic insulating phase in ultra thin films of n |
| Databáze: | OpenAIRE |
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