STABILIZATION OF A SUPERCONDUCTING TBSR2CU2.85RE0.15O7+DELTA COMPOUNDAND THE VALENCE STATE OF TERBIUM

Authors
MURUGESAN M SELVAM P SHARON M RAO MSR GUPTA LC PINTO R GOPINATH CS SUBRAMANIAN S
Citation
M. Murugesan et al., STABILIZATION OF A SUPERCONDUCTING TBSR2CU2.85RE0.15O7+DELTA COMPOUNDAND THE VALENCE STATE OF TERBIUM, Applied physics letters, 67(18), 1995, pp. 2711-2713
Citations number
21
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
67
Issue
18
Year of publication
1995
Pages
2711 - 2713
Database
ISI
SICI code
0003-6951(1995)67:18<2711:SOASTC>2.0.ZU;2-3
Abstract
A single-phase Sr-based Tb-123 phase has been synthesized by chemical stabilization. TbSr2Cu2.85Re0.15O7+delta exhibits superconductivity at T-c.zero=22 K. X-ray diffraction results suggest a relatively small o rthorhombicity and neutron diffraction studies indicate an excess oxyg en content (greater than or equal to 7.2) in the sample. Tb is present as a trivalent ion in the superconducting phase as derived from x-ray photoelectron spectroscopy. (C) 1995 American Institute of Physics.