Journal article
Low frequency spin dynamics in undoped and Sr-doped La2CuO4
Abstract
We report Cu63 NQR and NMR studies of low frequency spin dynamics in the paramagnetic state of La2-xSrxCuO4 for 0≤x≤0.15 in the temperature range up to 900 K. For x=0, the results were in good agreement with the theoretical predictions for an S=1/2 two-dimensional quantum Heisenberg antiferromagnet. For Sr-doped samples, we found that d spins exhibit, above 300 K, the characteristic behavior expected for a local moment system even for the …
Authors
Imai T; Slichter CP; Yoshimura K; Kosuge K
Journal
Physical Review Letters, Vol. 70, No. 7, pp. 1002–1005
Publisher
American Physical Society (APS)
Publication Date
February 15, 1993
DOI
10.1103/physrevlett.70.1002
ISSN
0031-9007