Open AccessTHE PREPARATION AND ELECTRONIC STRUCTURE OF PrBa2Cu3O7-δ
Author(s) -
Shunxi Wang,
Zhenhui He,
Qirui Zhang,
Zhao Hui-Qing,
Qian Yi-Tai,
Zuyao Chen,
Mingrong Ji
Publication year - 1989
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.38.1021
Subject(s) - orthorhombic crystal system , superconductivity , semiconductor , materials science , x ray photoelectron spectroscopy , phase (matter) , solid state , electronic band structure , condensed matter physics , optoelectronics , chemistry , physics , nuclear magnetic resonance , crystallography , crystal structure , quantum mechanics
Single phase samples of PrBa2Cu3O7-δ with orthorhombic structure were prepared by solid State reaction method. Resistance measurement was performed by a standard dc four-probe technique. It is found that the resistance exhibits semiconductor-like behavior. Results of XPS measurement indicate obviously the existence of Pr4+ in PrBa2Cu3O7-δ. Finally, the band structure was used to discuss the reasor why PrBa2Cu3O7-δ does not show superconductivity.