A NEW 1212-TYPE PHASE: Cr-SUBSTITUTED TlSr2CaCu2O7 WITH Tc UP TO ABOUT 110 K-Reference-Cited by-同舟云学术

A NEW 1212-TYPE PHASE: Cr-SUBSTITUTED TlSr2CaCu2O7 WITH Tc UP TO ABOUT 110 K

Published:1991-04-20 Issue:09 Volume:05 Page:635-642
ISSN:0217-9849
Container-title:Modern Physics Letters B
language:en
Short-container-title:Mod. Phys. Lett. B

Author:

SHENG Z.Z.¹,GU D.X.¹,XIN Y.¹,PEDERSON D.O.¹,FINGER L.W.²,HADIDIACOS C.G.²,HAZEN R.M.²

Affiliation:

1. Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA

2. Geophysical laboratory, Carnegie Institution of Washington, Washington, D. C. 20008, USA

Abstract

Superconductivity up to about 110 K in the CrTlSrCaCuO system was observed by resistance and ac susceptibility measurements. Powder X-ray diffraction analyses showed that a 1212-type phase, Cr -substituted TlSr 2 CaCu 2 O 7, is responsible for the observed superconductivity. This is the first time that single-element substitution for TlSr 2 CaCu 2 O 7 increases Tc of the 1212 phase to above 100 K. The Cr -substituted TlSr 2 CaCu 2 O 7 is easily prepared and has very good quality suitable for practical applications.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217984991000770

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