Control of magnetism across metal to insulator transitions
نویسندگان
چکیده
Magnetic properties (coercivity and magnetization) of ferromagnetic films are strongly affected by the proximity to materials that undergo a metal to insulator transition. Here, we show that stress associated with structural changes across the metal-insulator phase transition in VO2 and V2O3 produces a magnetoelastic anisotropy in ferromagnetic films (Co and Ni) deposited on top of the oxides. The changes in coercivity are as large as 168% and occur in a very narrow temperature range. This effect can be controlled and inverted by the thickness and the deposition temperature of the ferromagnetic films, which is very flexible for important technological applications. VC 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4798293]
منابع مشابه
Mott-Hubbard and Anderson metal-insulator transitions in correlated lattice fermions with binary disorder
D. Semmler,1 K. Byczuk,2,3 and W. Hofstetter1 1Institut für Theoretische Physik, Johann Wolfgang Goethe-Universität, 60438 Frankfurt am Main, Germany 2Institute of Theoretical Physics, Warsaw University, ul. Hoża 69, 00-681 Warszawa, Poland 3Theoretical Physics III, Center for Electronic Correlations and Magnetism, Institute for Physics, University of Augsburg, 86135 Augsburg, Germany Received ...
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