Suppression of Magnetism in BiFeO3 Ultrathin Epitaxial Multilayers
| Autor: | I. Galanakis, K. Koumpouras |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Journal of Spintronics and Magnetic Nanomaterials. 1:91-96 |
| ISSN: | 2158-8678 2158-866X |
| DOI: | 10.1166/jsm.2012.1018 |
| Popis: | The present manuscript completes the study presented in two recent research articles [K. Koumpouras and I. Galanakis, \textit{J. Magn. Magn. Mater.} 323, 2328 (2011); \textit{ibid}, \textit{J. Spintron. Magn. Nanomater.} 1, in press]. Preliminary first-principles calculations using the QUANTUM-espresso package [P. Giannozzi et al \textit{J. Phys.:Condens. Matter} 21, 395502 (2009)] on the magnetic behavior of ultra-thin epitaxial multilayers between the BiFeO$_3$ magnetoelectric compound and various types of spacers are presented. As spacer we have considered i) InP semiconductor, ii) Fe which is a ferromagnet, and iii) metallic V. In all cases under study the growth axis of the multilayer was the [001]. Our results indicate that the magnetic properties are seriously downgraded for the ultrathin BiFeO$_3$ multilayers independent of the nature of the spacer and in some cases under study magnetism even vanishes. More extensive calculations are needed to establish a more clear view of the physical properties of the interfaces involving the BiFeO$_3$ compound. |
| Databáze: | OpenAIRE |
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