Anomalous Temperature Dependence of the Spin‐Lattice Relaxation Time in Ferrocene

1957 ◽  
Vol 26 (6) ◽  
pp. 1753-1753 ◽  
Author(s):  
C. H. Holm ◽  
James A. Ibers
Keyword(s):  
Relaxation Time ◽  
Temperature Dependence ◽  
Lattice Relaxation ◽  
Lattice Relaxation Time ◽  
Spin Lattice Relaxation ◽  
Anomalous Temperature Dependence ◽  
Anomalous Temperature ◽  
Spin Lattice Relaxation Time ◽  
Spin Lattice

Anomalous Temperature Dependence of Spin-lattice Relaxation Time of the 14N-NQR Line in NaNO2

1990 ◽  
Vol 45 (3-4) ◽  
pp. 523-526 ◽  
Author(s):  
M. Igarashi ◽  
K. Eto ◽  
Y. Saito ◽  
Y. Abe
Keyword(s):  
Aqueous Solution ◽  
Relaxation Time ◽  
Temperature Dependence ◽  
Lattice Relaxation ◽  
Lattice Relaxation Time ◽  
Spin Lattice Relaxation ◽  
Anomalous Temperature Dependence ◽  
Anomalous Temperature ◽  
Spin Lattice Relaxation Time ◽  
Spin Lattice

Abstract The temperature dependence of the 14N-NQR spin-lattice relaxation time T1 of a powder sample of NaNO2 prepared from saturated aqueous solution could be fitted by a monotonic curve. When this sample was annealed, two minima of the T1 -Tcurve appeared around 35 K and 77 K. The origin of this phenomenon is discussed.

Temperature dependence of La spin-lattice relaxation time in the high-TcsuperconductorLa1.85Sr0.15CuO4

1987 ◽  
Vol 36 (10) ◽  
pp. 5702-5704 ◽  
Author(s):  
P. Butaud ◽  
P. Ségransan ◽  
C. Berthier ◽  
Y. Berthier ◽  
C. Paulsen ◽  
...  
Keyword(s):  
Relaxation Time ◽  
Temperature Dependence ◽  
Lattice Relaxation ◽  
Lattice Relaxation Time ◽  
Spin Lattice Relaxation ◽  
Spin Lattice Relaxation Time ◽  
Spin Lattice

scholarly journals Temperature dependence of the Spin-Lattice Relaxation Time of the 23Na-NMR Line in NaNO2

1992 ◽  
Vol 47 (1-2) ◽  
pp. 313-318 ◽  
Author(s):  
M. Igarashi ◽  
H. Kitagawa ◽  
S. Takahashi ◽  
R. Yoshizaki ◽  
Y. Abe
Keyword(s):  
Relaxation Time ◽  
Temperature Dependence ◽  
Lattice Relaxation ◽  
Polycrystalline Sample ◽  
Relaxation Mechanism ◽  
Lattice Relaxation Time ◽  
Spin Lattice Relaxation ◽  
Spin Lattice Relaxation Time ◽  
Spin Lattice ◽  
23Na Nmr

AbstractThe spin-lattice relaxation time, T1, of the 23Na-NMR line in NaNO2 is measured between 25 K and 160 K at two magnetic field strengths, 1.1 T and 6.9 T. The temperature dependence of T1 for the center line, observed on a polycrystalline sample prepared by precipitation from aqueous solution, is given by a monotonous curve. T1 increases gradually as the temperature decreases. On the other hand for a single crystal, which is made by a modified Bridgman method, the temperature dependence of T1 shows two deep dips below 150 K and a frequency dependence which cannot be explained by ordinary BPP theory. The dominant relaxation mechanism above and below 150 K is also investigated.

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