Hall Coefficient of La-Sr-Cu Oxide Superconducting Compound
Authors:
- Masayoshi TonouchiMasayoshi Tonouchi
- Yasufumi FujiwaraYFYasufumi Fujiwara
- Sadamu KitaSKSadamu Kita
- Takeshi KobayashiTKTakeshi Kobayashi
- Masasuke TakataMTMasasuke Takata
- Tsutomu YamashitaTYTsutomu Yamashita
- 1 April 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (4A) , L519
Abstract
Hall Coefficient of a porous La-Sr-Cu oxide superconductor (T c.zero=32 K) have been measured. The average concentratin n 300 and mobility µ300 of electrons, the dominant carrier, are found to be 1.5×1021 cm-3 and 4.17 cm2/Vs, respectively, at room temperature. The observed n 300 decreases with increasing temperature due probably to significant capture of thermally excited electrons at dense traps existing in the grain boundary surrounding the conductive channels.Keywords
This publication has 5 references indexed in Scilit:
- Upper critical fields and high superconducting transition temperatures of La1.85Sr0.15CuO4 and La1.85Ba0.15CuO4Applied Physics Letters, 1987
- Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressurePhysical Review Letters, 1987
- Bulk superconductivity at 36 K inPhysical Review Letters, 1987
- Evidence for superconductivity above 40 K in the La-Ba-Cu-O compound systemPhysical Review Letters, 1987
- Possible highT c superconductivity in the Ba?La?Cu?O systemZeitschrift für Physik B Condensed Matter, 1986