Paramagnetic Resonance as a Probe of the Spin Gap in Normal State of Hg.77Pb.33Ba2Ca2Cu3O8+x Superconductor
Author
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-3, 3 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-12-11
Country of Publication
Egypt
No. of Pages
3
Main Subjects
Abstract EN
It is shown that electron paramagnetic resonance (EPR) can be used to observe the spin gap in copper oxide superconductors.
The electron paramagnetic resonance spectra of the Cu2+ ion in underdoped Hg.77Pb.33Ba2Ca2Cu3O8+x show a pronounced decrease in intensity in the normal state as the temperature is lowered to 133 K, the superconducting transition temperature of the material.
The decrease is attributed to a pairing of the Cu2+ s=1/2 spins to form a spin gap.
A spin gap of 0.0533 eV is estimated from the data which is in order of magnitude agreement with values obtained from NMR measurements.
American Psychological Association (APA)
Owens, Frank J.. 2011. Paramagnetic Resonance as a Probe of the Spin Gap in Normal State of Hg.77Pb.33Ba2Ca2Cu3O8+x Superconductor. ISRN Condensed Matter Physics،Vol. 2011, no. 2011, pp.1-3.
https://search.emarefa.net/detail/BIM-509005
Modern Language Association (MLA)
Owens, Frank J.. Paramagnetic Resonance as a Probe of the Spin Gap in Normal State of Hg.77Pb.33Ba2Ca2Cu3O8+x Superconductor. ISRN Condensed Matter Physics No. 2011 (2011), pp.1-3.
https://search.emarefa.net/detail/BIM-509005
American Medical Association (AMA)
Owens, Frank J.. Paramagnetic Resonance as a Probe of the Spin Gap in Normal State of Hg.77Pb.33Ba2Ca2Cu3O8+x Superconductor. ISRN Condensed Matter Physics. 2011. Vol. 2011, no. 2011, pp.1-3.
https://search.emarefa.net/detail/BIM-509005
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-509005
