Neutron diffraction of field-induced magnon condensation in the spin-dimerized antiferromagnet Sr3Cr2O8
| Autor: | Nils Henrik Kolnes, Bella Lake, Nazmul Islam, Zhe Wang, Abhijit Bhat Kademane, Fabienne Duc, D. L. Quintero-Castro, Karel Prokes, Alsu Gazizulina, Andreas Schilling, Frederic Bourdarot, Sergei Zherlitsyn, Ramzy Daou, Wolfgang Schmidt |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Condensed matter physics Magnetic structure Field (physics) Magnon Neutron diffraction 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Inelastic neutron scattering Magnetic field 0103 physical sciences Antiferromagnetism Condensed Matter::Strongly Correlated Electrons 010306 general physics 0210 nano-technology Spin (physics) |
| Zdroj: | Physical Review B. 104 |
| ISSN: | 2469-9969 2469-9950 |
| 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 ${\mathrm{Sr}}_{3}{\mathrm{Cr}}_{2}{\mathrm{O}}_{8}$ 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 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 $\mathit{XY}$-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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|