In:
International Journal of Modern Physics B, World Scientific Pub Co Pte Ltd, Vol. 21, No. 18n19 ( 2007-07-30), p. 3143-3147
Abstract:
In the low doping limit, a high T c cuprate preserves a two band structure. O2p electrons are itinerant, Cu3d electrons are localized. Therefore the two component model is suitable to describe nuclear spin relaxation at copper sites. In addition to the Korringa process, the hyperfine interaction between nuclear spins and local electron spins is considered, which gives rise to the anomalous relaxation rate 1/T 1 = a + bT. The decrease of the susceptibility near T c , as shown by the Knight shift measurements, can be attributed to the ordering of local spins and the pairing of the uncompensated spins created by holes at the oxygen sites.
Type of Medium:
Online Resource
ISSN:
0217-9792
,
1793-6578
DOI:
10.1142/S0217979207044044
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2007
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