Pressure dependence of the electric field gradient at Po impurities in Bi single crystal

1987 ◽  
Vol 34 (1-4) ◽  
pp. 235-238
Author(s):  
E. Dafni ◽  
E. Naim ◽  
L. O. Norlin ◽  
B. Lindgren
Keyword(s):  
Electric Field ◽  
Single Crystal ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Pressure Dependence

Pressure dependence of the electric field gradient on Cd in Zn and Sn hosts

1978 ◽  
Vol 4 (1-2) ◽  
pp. 589-593 ◽  
Author(s):  
J. A. H. da Jornada ◽  
E. R. Fraga ◽  
R. P. Livi ◽  
F. C. Zawislak
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Pressure Dependence

Pressure Dependence of Chlorine NQR in Strontium Chlorate and Barium Chlorate Monohydrate

1986 ◽  
Vol 41 (1-2) ◽  
pp. 338-340 ◽  
Author(s):  
V. Krishnan ◽  
T. V. Krishna Moorthy ◽  
J. Ramakrishna
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Pressure Dependence ◽  
Pressure Effects ◽  
Volume Dependence ◽  
Torsional Frequency

The pressure dependence of the 35Cl-NQR frequencies in barium chlorate monohydrate and strontium chlorate, has been investigated up to 7000 kg cm-2. Ba(ClO3)2 · H2O shows a single 35Cl-NQR line at 29.337 MHz (T = 297 K, p = 1 bar). ν(35Cl) increases linearly with pressure in the range studied, with (1/ν )(∂ν/∂p)T = + 0.409 x 10-6 kg-1 cm2 which is much smaller than observed in NaClO3 and KCIO3. Sr(ClO3)2 also gave a single 35Cl-NQR frequency at 20.105 MHz (T = 297 K, p = 1 bar). The pressure dependence is very small and negative in this case. The data in both cases have been analysed to obtain the volume dependence of the torsional frequency. It is pointed out that explicit pressure effects on the electric field gradient have to be taken into account to provide an explanation for the observed pressure dependence of ν (35Cl).

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