OBSERVATION OF U-235 NMR IN THE ANTIFERROMAGNETIC STATE OF UO2

Authors
IKUSHIMA K YASUOKA H TSUTSUI S SAEKI M NASU S DATE M
Citation
K. Ikushima et al., OBSERVATION OF U-235 NMR IN THE ANTIFERROMAGNETIC STATE OF UO2, Journal of the Physical Society of Japan, 67(1), 1998, pp. 65-66
Citations number
13
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
67
Issue
1
Year of publication
1998
Pages
65 - 66
Database
ISI
SICI code
0031-9015(1998)67:1<65:OOUNIT>2.0.ZU;2-Z
Abstract
The U-235 (I = 7/2) NMR for magnetic uranium sites with 5f-electrons h as been first observed in the antiferromagnetic state of UO2. The hype rfine field is estimated to be 252.3 +/- 0.5 T. Well articulated quadr upole splittings have also been observed with \e(2)qQ(3cos(2) theta-1) /h\ = 392 +/- 11 MHz. This indicates the presence of an electric field gradient produced by the Gamma(5)-ground state for 5f-electrons in th e magnetic ordering.