2 papers
cond-mat.supr-con2004
Ni impurity induced enhancement of the pseudogap in cuprate high T_c superconductors
A. V. Pimenov, A. V. Boris, Li Yu +5
The influence of magnetic Ni and non-magnetic Zn impurities on the normal state pseudogap (PG) in the c-axis optical conductivity of NdBa\{Cu(Ni,Zn)O$_{…
cond-mat.str-el2004
Spin-controlled Mott-Hubbard bands in LaMnO_3 probed by optical ellipsometry
N. N. Kovaleva, A. V. Boris, C. Bernhard +5
Spectral ellipsometry has been used to determine the dielectric function of an untwinned crystal of LaMnO_3 in the spectral range 0.5-5.6 eV at temperatures 50 K < T < 300 K. A pro…