publication . Preprint . Article . Other literature type . 2018

Nonlinear NMR and magnon BEC in antiferromagnetic materials with coupled electron and nuclear spin precession

Abdurakhimov, L.; Borich, M. A.; Bunkov, Y. M.; Gazizulin, R. R.; Konstantinov, D.; Kurkin, M. I.; Tankeyev, A. P.;
Open Access English
  • Published: 22 Jan 2018
Abstract
We present a new study of nonlinear NMR and Bose-Einstein Condensation (BEC) of nuclear spin waves in antiferromagnetic MnCO3 with coupled electron and nuclear spins. In particular, we show that the observed behaviour of NMR signals strongly contradicts the conventional description of paramagnetic ensembles of noninteracting spins based on the phenomenological Bloch equations. We present a new theoretical description of the coupled electron-nuclear spin precession, which takes into account an indirect relaxation of nuclear spins via the electron subsystem. We show that the magnitude of the nuclear magnetization is conserved for arbitrary large excitation powers,...
Subjects
arXiv: Condensed Matter::Strongly Correlated ElectronsCondensed Matter::Quantum GasesNuclear Theory
free text keywords: Condensed Matter - Other Condensed Matter, [ PHYS ] Physics [physics], Magnon, Physics, Electron, Antiferromagnetism, Spin (physics), Condensed matter physics, Precession, Nonlinear system
Related Organizations
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publication . Preprint . Article . Other literature type . 2018

Nonlinear NMR and magnon BEC in antiferromagnetic materials with coupled electron and nuclear spin precession

Abdurakhimov, L.; Borich, M. A.; Bunkov, Y. M.; Gazizulin, R. R.; Konstantinov, D.; Kurkin, M. I.; Tankeyev, A. P.;