TY - JOUR
T1 - Cu-NQR of CeCu2Si2 under high pressure
AU - Fujiwara, K.
AU - Iwata, M.
AU - Okazaki, Y.
AU - Ikeda, Y.
AU - Araki, S.
AU - Kobayashi, T. C.
AU - Murata, K.
AU - Geibel, C.
AU - Steglich, F.
PY - 2012
Y1 - 2012
N2 - We have measured 63Cu-NQR spectral lines and nuclear spin-lattice relaxation time T1 under pressure up to 5.4 GPa. Daphne oil 7474 is used as the pressure-transmitting medium to obtain good hydrostaticity. NQR frequency 63νq above 4 GPa suddenly decreases from the linear pressure dependence in the low pressure range (P ≤ 3.5 GPa). The observed sudden downward deviation of 63νq is associated with an increase of Ce valence. Above 4.5 GPa, the linear pressure dependence of 63νq is observed again, most likely related to the sharp crossover to the high valence state.
AB - We have measured 63Cu-NQR spectral lines and nuclear spin-lattice relaxation time T1 under pressure up to 5.4 GPa. Daphne oil 7474 is used as the pressure-transmitting medium to obtain good hydrostaticity. NQR frequency 63νq above 4 GPa suddenly decreases from the linear pressure dependence in the low pressure range (P ≤ 3.5 GPa). The observed sudden downward deviation of 63νq is associated with an increase of Ce valence. Above 4.5 GPa, the linear pressure dependence of 63νq is observed again, most likely related to the sharp crossover to the high valence state.
UR - http://www.scopus.com/inward/record.url?scp=84874824118&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874824118&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/391/1/012012
DO - 10.1088/1742-6596/391/1/012012
M3 - Conference article
AN - SCOPUS:84874824118
SN - 1742-6588
VL - 391
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012012
T2 - International Conference on Strongly Correlated Electron Systems, SCES 2011
Y2 - 29 August 2011 through 3 September 2011
ER -