
TY  - JOUR
A1  - Back, PJ 
A1  - Bleaney, B 
A1  - Bowden, GJ 
A1  - Stone, NJ 
T1  - A Nuclear Orientation Study of Terbium Ethyl Sulphate
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1994
VL  - 47
IS  - 4
SP  - 475
EP  - 486
KW  - 
UR  - https://doi.org/10.1071/PH940475 
N2  - Terbium ethyl suphate (TbES) has been studied by nuclear orientation using radioactive 160Tb. It is found that (i) it is difficult to cool the terbium nuclei below ~50 mK because of the long nuclear spin-lattice relaxation time TIN; (ii) application of small magnetic fields of the order 0·1 T produces a dramatic increase in the value of TIN; the long electronic relaxation time T1E makes it difficult to determine the Curie temperature Tc in such experiments; and (iv) the saturation magnetic moment is approximately 7·35I'B. No nuclear magnetic resonance transitions were detected when radio-frequency fields at frequencies from 190 to 920 MHz were applied, but a long series of resonance absorption peaks was observed with a frequency separation of 26·3(3) MHz. Their origin ascribed to magneto-acoustic modes within magnetic domains, rather than to magnetostatic modes, magnetic spin waves, or resonances within domain walls. 
ER  -

