McClintock, Peter V. E. and Rosenberg, H. M. (1965) The thermal conductivity of paramagnetic crystals in a magnetic field at low temperatures. Bulletin de l'Institute du Froid (Supplement). pp. 107-115.
Full text not available from this repository.Abstract
The thermal conductivities of KMgF3 crystals doped with Ni2+ and Co2+ and crystals of cerium ethylsulphate have been measured in the temperature range 1 to 4.2 K and in magnetic fields up to 52 kilogauss. In all cases the conductivity changes which are observed may be qualitatively interpreted as being due to bands of phonons within a certain energy range being scattered by interaction with the spin system, the energy range being changed as the magnetic field is varied. For the Co2+ doping it is possible that interaction with pairs of Co ions is being observed, rather than with single ions. For the Ni2+ ions and the Co2+ pairs it would appear that in zero field the ground state doublet is separated from a higher singlet with a separation which has a spread of about 3 /cm. Cerium ethylsulphate has two low lying doublets whose g values are very different parallel and perpendicular to the hexagonal axis. The conductivity behaviour of crystals cut along these two axes is therefore quite different and this is briefly discussed.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Bulletin de l'Institute du Froid (Supplement) |
| Additional Information: | Proceedings of the conference in Grenoble, 1965. |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 32587 |
| Deposited By: | Professor P. V. E. McClintock |
| Deposited On: | 13 Apr 2010 08:55 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 26 Jul 2012 17:13 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/32587 |
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