skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Comparative transport studies of ``1212'' superconductors

Abstract

HgBa{sub 2}CaCu{sub 2}O{sub 6+{delta}} (Hg-1212) thin films were fabricated by exchanging the TI cations in TlBa{sub 2}CaCu{sub 2}O{sub 7-{delta}} (Tl-1212) thin films with Hg cations, causing a 30-K increase in Tc. To determine how this exchange effects such a Tc increase, the irreversibility lines, temperature dependence of critical current density, and temperature dependence of Hall angle of Hg-1212 and T1-1212 thin films were measured and then compared. The results strongly suggest that the Tc shift is caused by a doubling of charge carrier density.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
755615
Report Number(s):
SAND2000-1255J
TRN: US0003622
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article
Journal Name:
Science Diliman
Additional Journal Information:
Journal Volume: 11:; Journal Issue: 2,8-10; Other Information: Submitted to Science Diliman (Jul-Dec 1999); 11: No.2, pg. 8-10; PBD: 17 May 2000
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; HIGH-TC SUPERCONDUCTORS; MERCURY OXIDES; BARIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; ION EXCHANGE; THALLIUM OXIDES; TRANSITION TEMPERATURE; CURRENT DENSITY; HALL EFFECT; HG-1212; TL-1212; TRANSPORT; IRREVERSIBILITY

Citation Formats

GAPUD,ALBERT, WU,JUDY, YAN,SHAOLIN, XIE,YI-YUAN, KANG,BYEONGWON, SIEGAL,MICHAEL P., and OVERMYER,DONALD L. Comparative transport studies of ``1212'' superconductors. United States: N. p., 2000. Web.
GAPUD,ALBERT, WU,JUDY, YAN,SHAOLIN, XIE,YI-YUAN, KANG,BYEONGWON, SIEGAL,MICHAEL P., & OVERMYER,DONALD L. Comparative transport studies of ``1212'' superconductors. United States.
GAPUD,ALBERT, WU,JUDY, YAN,SHAOLIN, XIE,YI-YUAN, KANG,BYEONGWON, SIEGAL,MICHAEL P., and OVERMYER,DONALD L. Wed . "Comparative transport studies of ``1212'' superconductors". United States. https://www.osti.gov/servlets/purl/755615.
@article{osti_755615,
title = {Comparative transport studies of ``1212'' superconductors},
author = {GAPUD,ALBERT and WU,JUDY and YAN,SHAOLIN and XIE,YI-YUAN and KANG,BYEONGWON and SIEGAL,MICHAEL P. and OVERMYER,DONALD L.},
abstractNote = {HgBa{sub 2}CaCu{sub 2}O{sub 6+{delta}} (Hg-1212) thin films were fabricated by exchanging the TI cations in TlBa{sub 2}CaCu{sub 2}O{sub 7-{delta}} (Tl-1212) thin films with Hg cations, causing a 30-K increase in Tc. To determine how this exchange effects such a Tc increase, the irreversibility lines, temperature dependence of critical current density, and temperature dependence of Hall angle of Hg-1212 and T1-1212 thin films were measured and then compared. The results strongly suggest that the Tc shift is caused by a doubling of charge carrier density.},
doi = {},
journal = {Science Diliman},
number = 2,8-10,
volume = 11:,
place = {United States},
year = {2000},
month = {5}
}