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Title: Anomalous magnetic behavior in non-resonant microwave absorption study of Bi-2212 superconductors

Abstract

The non-resonant microwave absorption (NRMA) studies in silver doped polycrystalline Bi{sub 2}Sr{sub 2}Ca{sub 1}Cu{sub 2}O{sub 8} samples have been carried out. NRMA signal has been observed not only below Tc but also above Tc which is much above the fluctuation regime when the DC magnetic field was swept from {minus}50G to +50 G through 0G. Anomalous magnetic hysteresis behavior has been observed where the forward curve lies above the return curve even at lower temperatures. The observed curve has been simulated by taking into consideration the sum of reversible losses as well as irreversible losses using Dulcic and Portis models. This leads to anomalous magnetic hysteresis behavior as has been observed experimentally.

Authors:
;
Publication Date:
Research Org.:
Univ. of Delhi, New Delhi (IN)
OSTI Identifier:
20000845
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MICROWAVE RADIATION; PHYSICAL PROPERTIES; BISMUTH OXIDES; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; HIGH-TC SUPERCONDUCTORS; DOPED MATERIALS; SILVER OXIDES; ENERGY LOSSES; HYSTERESIS

Citation Formats

Tripathy, M.R., and Srivastava, G.P. Anomalous magnetic behavior in non-resonant microwave absorption study of Bi-2212 superconductors. United States: N. p., 1999. Web. doi:10.1109/20.800761.
Tripathy, M.R., & Srivastava, G.P. Anomalous magnetic behavior in non-resonant microwave absorption study of Bi-2212 superconductors. United States. doi:10.1109/20.800761.
Tripathy, M.R., and Srivastava, G.P. Wed . "Anomalous magnetic behavior in non-resonant microwave absorption study of Bi-2212 superconductors". United States. doi:10.1109/20.800761.
@article{osti_20000845,
title = {Anomalous magnetic behavior in non-resonant microwave absorption study of Bi-2212 superconductors},
author = {Tripathy, M.R. and Srivastava, G.P.},
abstractNote = {The non-resonant microwave absorption (NRMA) studies in silver doped polycrystalline Bi{sub 2}Sr{sub 2}Ca{sub 1}Cu{sub 2}O{sub 8} samples have been carried out. NRMA signal has been observed not only below Tc but also above Tc which is much above the fluctuation regime when the DC magnetic field was swept from {minus}50G to +50 G through 0G. Anomalous magnetic hysteresis behavior has been observed where the forward curve lies above the return curve even at lower temperatures. The observed curve has been simulated by taking into consideration the sum of reversible losses as well as irreversible losses using Dulcic and Portis models. This leads to anomalous magnetic hysteresis behavior as has been observed experimentally.},
doi = {10.1109/20.800761},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt2,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}