Portal de Periódicos da CAPES

Over-doping of Tl2Ba2CuO6 due to charge transfer Tl3−-(Cu-O)

1989; Elsevier BV; Volume: 160; Issue: 5-6 Linguagem: Inglês

10.1016/0921-4534(89)90420-6

1873-2143

Satoru Nakajima, Masae Kikuchi, Takeo Oku, Norio Kobayashi, Teruo Suzuki, K. Nagase, K. Hiraga, Yoshio Mutô, Yasuhiko Syono,

Rare-earth and actinide compounds

Superconductivity was observed in La substituted Tl2Ba2CuO6. Both Tc and unit cell dimension, a, increase with increasing La concentration, indicating that an over-doping state in Tl2Ba2CuO6, which was due to charge transfer Tl3−t-(Cu-O)p as supported from XPS measurements, was relieved by La substitution for Ba.