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Title: Flux dynamics and irreversibility in YBa{sub 2}Cu{sub 3}O{sub 7} with Y{sub 2}BaCuO{sub 5} inclusions and in single crystal YBa{sub 2}Cu{sub 3}O{sub 7}

Abstract

We have measured the ac magnetic permeability response function {mu} = {mu}{prime} + i{mu}{double_prime} in melt-processed melt grown YBa{sub 2}Cu{sub 3}O{sub 7} with Y{sub 2}BaCuO{sub 5} inclusions (MPMG) and in single crystal YBa{sub 2}Cu{sub 3}O{sub 7} (SC) in applied magnetic fields up to 8 Tesla oriented either parallel or perpendicular to the crystalline c-axis. The ac response of the two samples has been mapped out as a function of temperature, frequency, ac field amplitude, dc applied field, and field orientation. The peak in the lossy part of the susceptibility {mu}{double_prime} is used to probe the flux dynamics in the vicinity of the irreversibility line. The data are interpreted by comparison with expectations of an anisotropic vortex glass- to -liquid transition. The inferred melting lines as well as the frequency dependence and non-linear response are in overall agreement with the expected behavior. In the range of available parameters and variables we find the system to be in the solid vortex phase for H{perpendicular}c since there is a strong H{sub ac} dependence and only a weak frequency dependence on the temperature position of the loss peak. For H{parallel}c, the situation is reversed, and the loss peak depends only weakly on H{sub ac}more » and strongly on the frequency.« less

Authors:
; ; ; ;  [1];  [2]; ; ; ;  [3]; ; ;  [4]
  1. Norges Tekniske Hoegskole, Trondheim (Norway). Div. of Physics
  2. Argonne National Lab., IL (United States)
  3. Superconductivity Research Lab., Tokyo (Japan)
  4. School of Physics, Univ. of Birmingham, Birmingham (UK)
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10136613
Report Number(s):
ANL/CP-75450; CONF-9112107-1
ON: DE92009712
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: Nobel jubliee symposium on low dimensional properties of solids,Gothenburg (Sweden),4-7 Dec 1991; Other Information: PBD: Jan 1992
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER OXIDES; MAGNETIC PROPERTIES; BARIUM OXIDES; YTTRIUM OXIDES; HIGH-TC SUPERCONDUCTORS; MAGNETIC FLUX; CRITICAL CURRENT; 360204; PHYSICAL PROPERTIES

Citation Formats

Fossheim, K, Karkut, M G, Heill, L K, Slaski, M, Sagdahl, L T, Selskapet for Industriell og Teknisk Forskning, Trondheim, Vinokur, V, Murakami, M, Fujimoto, H, Koshizuka, N, Tanaka, S, Gencer, F, Abell, J S, and Gough, C E. Flux dynamics and irreversibility in YBa{sub 2}Cu{sub 3}O{sub 7} with Y{sub 2}BaCuO{sub 5} inclusions and in single crystal YBa{sub 2}Cu{sub 3}O{sub 7}. United States: N. p., 1992. Web.
Fossheim, K, Karkut, M G, Heill, L K, Slaski, M, Sagdahl, L T, Selskapet for Industriell og Teknisk Forskning, Trondheim, Vinokur, V, Murakami, M, Fujimoto, H, Koshizuka, N, Tanaka, S, Gencer, F, Abell, J S, & Gough, C E. Flux dynamics and irreversibility in YBa{sub 2}Cu{sub 3}O{sub 7} with Y{sub 2}BaCuO{sub 5} inclusions and in single crystal YBa{sub 2}Cu{sub 3}O{sub 7}. United States.
Fossheim, K, Karkut, M G, Heill, L K, Slaski, M, Sagdahl, L T, Selskapet for Industriell og Teknisk Forskning, Trondheim, Vinokur, V, Murakami, M, Fujimoto, H, Koshizuka, N, Tanaka, S, Gencer, F, Abell, J S, and Gough, C E. 1992. "Flux dynamics and irreversibility in YBa{sub 2}Cu{sub 3}O{sub 7} with Y{sub 2}BaCuO{sub 5} inclusions and in single crystal YBa{sub 2}Cu{sub 3}O{sub 7}". United States. https://www.osti.gov/servlets/purl/10136613.
@article{osti_10136613,
title = {Flux dynamics and irreversibility in YBa{sub 2}Cu{sub 3}O{sub 7} with Y{sub 2}BaCuO{sub 5} inclusions and in single crystal YBa{sub 2}Cu{sub 3}O{sub 7}},
author = {Fossheim, K and Karkut, M G and Heill, L K and Slaski, M and Sagdahl, L T and Selskapet for Industriell og Teknisk Forskning, Trondheim and Vinokur, V and Murakami, M and Fujimoto, H and Koshizuka, N and Tanaka, S and Gencer, F and Abell, J S and Gough, C E},
abstractNote = {We have measured the ac magnetic permeability response function {mu} = {mu}{prime} + i{mu}{double_prime} in melt-processed melt grown YBa{sub 2}Cu{sub 3}O{sub 7} with Y{sub 2}BaCuO{sub 5} inclusions (MPMG) and in single crystal YBa{sub 2}Cu{sub 3}O{sub 7} (SC) in applied magnetic fields up to 8 Tesla oriented either parallel or perpendicular to the crystalline c-axis. The ac response of the two samples has been mapped out as a function of temperature, frequency, ac field amplitude, dc applied field, and field orientation. The peak in the lossy part of the susceptibility {mu}{double_prime} is used to probe the flux dynamics in the vicinity of the irreversibility line. The data are interpreted by comparison with expectations of an anisotropic vortex glass- to -liquid transition. The inferred melting lines as well as the frequency dependence and non-linear response are in overall agreement with the expected behavior. In the range of available parameters and variables we find the system to be in the solid vortex phase for H{perpendicular}c since there is a strong H{sub ac} dependence and only a weak frequency dependence on the temperature position of the loss peak. For H{parallel}c, the situation is reversed, and the loss peak depends only weakly on H{sub ac} and strongly on the frequency.},
doi = {},
url = {https://www.osti.gov/biblio/10136613}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}

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