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VOLUME 102 (2015) | ISSUE 11 |
PAGE 876
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Critical parameters of nuclear magnon Bose-Einstein condensation in systems with dynamical frequency shift
R. R. Gazizulin+*, Yu. M. Bunkov+*, V. L. Safonov×
+CNRS Institut Nel et Universit Grenoble Alpes, B.P. 166, 38042 Grenoble, France *Kazan Federal University, 420008 Kazan, Russia ×Mag and Bio Dynamics, Inc. Arlington, TX 76001, USA
Abstract
The critical conditions for the Bose-Einstein
condensation of quasi
equilibrium nuclear magnons in the easy-plane antiferromagnets
CsMnF3
and MnCO3 are theoretically derived. Both systems possess the
dynamical
frequency shift, the dependence of the precession frequency on the
magnetization deflection angle and
one is able to observe the magnetic resonance signals in very
non-equilibrium
conditions when the frequency of pumping is higher than precession
frequency.
The frequency difference in this case can be compensated by the
increasing of deflection angle.
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