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  1. No Access

    Article

    Wüstite: electric, thermodynamic and optical properties of FeO

    We report on a systematic optical investigation of wüstite. In addition, the sample under consideration, Fe0.93O, has been characterized in detail by electrical transport, dielectric, magnetic and thermodynamic m...

    F. Schrettle, Ch. Kant, P. Lunkenheimer, F. Mayr… in The European Physical Journal B (2012)

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    Article

    Physical properties of FeSe0.5Te0.5 single crystals grown under different conditions

    We report on structural, magnetic, conductivity, and thermodynamic studies of FeSe0.5Te0.5 single crystals grown by self-flux and Bridgman methods. The lowest values of the susceptibility in the normal state, th...

    V. Tsurkan, J. Deisenhofer, A. Günther, Ch. Kant… in The European Physical Journal B (2011)

  3. No Access

    Article

    Spin-phonon coupling in highly correlated transition-metal monoxides

    We report on the optical response of the highly correlated transition-metal monoxides MnO, FeO, CoO and NiO in the far-infrared regime. The main focus is put on spin-phonon coupling effects, which are found t...

    Ch. Kant, F. Mayr, T. Rudolf, M. Schmidt… in The European Physical Journal Special Topi… (2009)

  4. No Access

    Article

    Far-infrared optical excitations in multiferroic TbMnO3

    We provide a detailed study of the reflectivity of multiferroic TbMnO3 for wave numbers from 40 cm-1 to 1000 cm-1 and temperatures 5 K < T < 300 K. Excitations are studied for polarization directions E || a, the ...

    M. Schmidt, Ch. Kant, T. Rudolf, F. Mayr, A. A. Mukhin… in The European Physical Journal B (2009)

  5. No Access

    Article

    Optical properties of ZnCr2Se4

    We studied the optical properties of antiferromagnetic ZnCr2Se4 by infrared spectroscopy up to 28,000 cm-1 and for temperatures from 5 to 295 K. At the magnetic phase transition at 21 K, one of the four phonon mo...

    T. Rudolf, Ch. Kant, F. Mayr, M. Schmidt, V. Tsurkan… in The European Physical Journal B (2009)