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7 Li Spin–Lattice Relaxation in a LiKSO 4 Single Crystal
Author(s) -
Lim Ae Ran,
Choh Sung Ho,
Jeong SeYoung
Publication year - 1997
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(199705)201:1<285::aid-pssb285>3.0.co;2-l
Subject(s) - spin–lattice relaxation , relaxation (psychology) , condensed matter physics , single crystal , lattice (music) , scattering , chemistry , spectrometer , materials science , physics , optics , crystallography , paramagnetism , psychology , social psychology , acoustics
The temperature dependence of the 7 Li relaxation time in a LiKSO 4 single crystal grown by the slow evaporation method was investigated using a Bruker FT NMR spectrometer. The spin–lattice relaxation time, T 1 , for 7 Li was found to be 2070 s at room temperature. The temperature dependence of the relaxation rate, /1 T 1 , was fitted by the approximation /1 T 1 = [(2.27 × 10 —6 ) T + (—2.1 × 10 —4 )] (s —1 ), for Li. Therefore, the linear temperature dependence of the relaxation time can be explained by the direct process of scattering with a single phonon.