2003/07/10 by A. D. Rata, V. Kataev, D. I. Khomskii +2
Materials Science · Physics and Astronomy · #Electronic and Structural Properties of Oxides #Magnetic and transport properties of perovskites and related materials #Transition Metal Oxide Nanomaterials #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.68.220403
4 pages, 5 figures included in the text, references updated
arxiv created 2003/07/10 · openalex publication_date 2003/12/17 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We report on giant positive magnetoresistance (MR) effect observed in VOx thin films, epitaxially grown on SrTiO3 substrate. The MR effect depends strongly on temperature and oxygen content and is anisotropic. At low temperatures its magnitude reaches 70% in a magnetic field of 5 T. Strong electron-electron interactions in the presence of strong disorder may qualitatively explain the results. An alternative explanation, related to a possible magnetic instability, is also discussed.