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Université de Fribourg

X-ray absorption study of the ferromagnetic Cu moment at the ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7}/{\mathrm{La}}_{2/3}{\mathrm{Ca}}_{1/3}{\mathrm{MnO}}_{3}$ interface and variation of its exchange interaction with the Mn moment

Sen, Kaushik ; Perret, Edith ; Alberca, Aurora ; Uribe-Laverde, Miguel Angel ; Marozau, Ivan ; Yazdi-Rizi, M. ; Mallett, Benjamin P. P. ; Maršík, Premysl ; Piamonteze, C. ; Khaydukov, Yu N. ; Döbeli, Max ; Keller, T. ; Biškup, N. ; Varela, M. ; Vašátko, J. ; Munzar, Dominik ; Bernhard, Christian

In: Physical Review B, 2016, vol. 93, no. 20, p. 205131

With x-ray absorption spectroscopy and polarized neutron reflectometry we studied how the magnetic proximity effect at the interface between the cuprate high-TC superconductor YBa2Cu3O7 (YBCO) and the ferromagnet La2/3Ca1/3MnO3 (LCMO) is related to the electronic and magnetic properties of the LCMO layers. In particular, we explored how the magnitude of the ferromagnetic Cu moment on the YBCO...

Université de Fribourg

Temperature dependence of the superconductivity-induced collective mode in the c-axis infrared spectra of bilayer cuprate superconductors

Munzar, Dominik ; Chaloupka, Jiří ; Bernhard, Christian ; Dubroka, Adam ; Vašátko, J.

In: Physica C: Superconductivity, 2010, p. -

The low-temperature spectra of the c-axis infrared conductivity of bilayer high-Tc cuprate superconductors (HTCS) exhibit two superconductivity-induced modes [Li Yu et al., Phys. Rev. Lett. 100 (2008) 177004; and references therein]. Both can be understood in terms of a microscopic theory developed recently [J. Chaloupka, C. Bernhard, D. Munzar, Phys. Rev. B 79 (2009) 184513]. Here we summarize...

2 results 1