Neutron diffraction of field-induced magnon condensation in the spin-dimerized antiferromagnet Sr$_{3}$Cr$_{2}$O$_{8}$
| Autor: | Gazizulina, Alsu, Quintero-Castro, Diana Lucia, Wang, Zhe, Duc, Fabienne, Bourdarot, Frederic, Prokes, Karel, Schmidt, Wolfgang, Daou, Ramzy, Zherlitsyn, Sergei, Islam, Nazmul, Kolnes, Nils Henrik, Kademane, Abhijit Bhat, Schilling, Andreas, Lake, Bella |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Phys. Rev. B 104, 064430 (2021) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.104.064430 |
| Popis: | In this work, we investigate the evolution and settling of magnon condensation in the spin-1/2 dimer system Sr$_{3}$Cr$_{2}$O$_{8}$ using a combination of magnetostriction in pulsed fields and inelastic neutron scattering in a continuous magnetic field. The magnetic structure in the Bose-Einstein condensation (BEC) phase was probed by neutron diffraction in pulsed magnetic fields up to 39~T. The magnetic structure in this phase was confirmed to be an XY-antiferromagnetic structure validated by irreducible representational analysis. The magnetic phase diagram as a function of an applied magnetic field for this system is presented. Furthermore, zero-field neutron diffraction results indicate that dimerization plays an important role in stabilizing the low-temperature crystal structure. Comment: 6 pages, 4 figures |
| Databáze: | arXiv |
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