Eur. Phys. J. B 12, 515-517 (1999)
https://doi.org/10.1007/s100510051033

Ordered phase of nuclear spins in uniaxial ferromagnets at ultralow temperatures

¹ Department of Physics, Tbilisi State University, Chavchavadze ave. 3, Tbilisi 380028, Georgia
² Institute of Physics, Tamarashvili str. 6, Tbilisi 380077, Georgia

Received: 25 January 1999
Revised: 5 May 1999
Published online: 13 August 2012

Abstract

Paper investigates the onset of nuclear magnetic ordering caused by the indirect Suhl-Nakamura interaction in ferromagnets. The necessary condition for nuclear spin ordering with definite ordering vector is obtained. Particularly, it is shown that ferromagnetically ordered phase of nuclear spins could be observed only in case of disk shaped samples. The spectrum of the nuclear spin excitations is also found.