Since the discovery of superconductivity above 30 K by Bednorz and Müller in the La copper
oxide system, the critical temperature has been raised to 90 K in Y Ba 2 Cu 3 O 7 and to 110 …

Understanding the electron pairing in hole-doped cuprate superconductors has been a
challenge, in particular because the “normal” state from which it evolves is unprecedented …

We demonstrate how by taking better account of electron correlations in the 3 d shell of
metal ions in nickel oxide it is possible to improve the description of both electron energy …

Band gaps and electronic structure of transition-metal compounds Page 1 VOLUME 55,
NUMBER 4 PHYSICAL REVIEW LETTERS 22 JUL+ 1985 Band Gaps and Electronic Structure …

The electronic structure of copper oxides has been investigated by photoelectron (x-ray
photoemission, ultraviolet photoemission), Auger electron, and bremsstrahlung isochromat …

How can the fundamental band gap of an insulator be predicted? As a difference of ground‐
state energies, the fundamental gap seems to fall within the reach of density functional …

Photoemission and bremsstrahlung-isochromat-spectroscopy data on a cleaved NiO single
crystal are presented and compared to band-and cluster-theory predictions. In contrast to …

For the progressive development of spintronics as the next generation information
technology source, it is essential to look for materials with high abundance, long spin …

A giant low-frequency dielectric constant (ϵ o∼ 10 5) near room temperature was observed
in Li, Ti co-doped NiO ceramics. Unlike currently best-known high ϵ o ferroelectric-related …

Negative resistance behavior and reproducible resistance switching were found in
polycrystalline NiO films deposited by dc magnetron reactive sputtering methods. Oxygen to …