63 citations · 180 across the 12 of their papers we have counts for
6 papers · 1 filter
Nanoscale lattice heterostructure in high Tc superconductors
Annette Bussmann-Holder, Jürgen Haase, Hugo Keller +9
Low temperature superconductivity was known since 1957 to be described by BCS theory for an effective single band metals controlled by the density of states at the Fermi level, ver…
Local noncentrosymmetric structure of Bi2Sr2CaCu2O8+y by X-ray magnetic circular dichroism at Cu K-edge XANES
Andrey A. Ivanov, Valentin G. Ivanov, Alexey P. Menushenkov +7
The two-dimensional Bi2Sr2CaCu2O8+y (Bi2212), the most studied prototype cuprate superconductor, is a lamellar system made of a stack of two-dimensional corrugated CuO2 bilayers se…
Fe-As bond fluctuations in a double-well potential in LaFeAsO
Valentin G. Ivanov, Andrey A. Ivanov, Alexey P. Menushenkov +2
While for a long time iron based superconductors have been investigated looking at the average crystalline structure there is now growing interest on the divergence of local from t…
Temperature dependent As K-edge EXAFS studies of LaFe1-xCoxAsO (x = 0.0 and 0.11) single crystals
Boby Joseph, Alessandro Ricci, Nicola Poccia +5
We report the experimental results of temperature dependent polarized As K-edge extended x-ray absorption fine structure (EXAFS) of LaFe1-xCoxAsO (x=0.0 and 0.11) single-crystals.…
Possible scenario of the spatially separated Fermi-Bose mixture in the superconductive bismuthates Ba_{1-x}K_xBiO_3
M. Yu. Kagan, A. P. Menushenkov, K. V. Klementev +1
A new scenario for superconductivity in the bismuthates based on the concept of a spatially separated Fermi-Bose mixture is proposed. In the framework of this scenario we qualitati…
EXAFS indication of double-well potential for oxygen vibration in Ba_{1-x}K_xBiO_3
A. P. Menushenkov, K. V. Klementev
X-ray absorption spectra of oxide systems Ba_{1-x}K_xBiO_3 and BaPbO_3 above Bi- and Pb-L3 absorption edges were investigated. It was shown that oxygen ions move in double-well pot…