Electronic inhomogeneity in EuO: Possibility of magnetic polaron states

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We have observed the spatial inhomogeneity of the electronic structure of a single-crystalline electron-doped EuO thin film with ferromagnetic ordering by employing infrared magneto-optical imaging with synchrotron radiation. The uniform paramagnetic electronic structure changes to a uniform ferromagnetic structure via an inhomogeneous state with decreasing temperature and increasing magnetic field slightly above the ordering temperature. One possibility of the origin of the inhomogeneity is the appearance of magnetic polaron states.
4 pages, 3 figures

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Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/168616

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0809.1299
 http://arxiv.org/abs/0809.1299
 Phys. Rev. B 78, 052409 (2008)
 doi:10.1103/PhysRevB.78.052409

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arXiv