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Magnetic field induced one-magnon Raman scattering in the magnon Bose-Einstein condensation phase ofTlCuCl3
- Source :
- Physical Review B. 77
- Publication Year :
- 2008
- Publisher :
- American Physical Society (APS), 2008.
-
Abstract
- We report the observation of the $A_{\rm g}$-symmetric one-magnon Raman peak in the magnon Bose-Einstein condensation phase of TlCuCl$_{3}$. Its Raman shift traces the one-magnon energy at the magnetic $\Gamma$ point, and its intensity is proportional to the squared transverse magnetization. The appearance of the one-magnon Raman scattering originates from the exchange magnon Raman process and reflects the change of the magnetic-state symmetry. Using the bond-operator representation, we theoretically clarify the Raman selection rules, being consistent with the experimental results.
- Subjects :
- Condensed Matter::Quantum Gases
Physics
Condensed matter physics
Condensed Matter::Other
Magnon
Condensed Matter Physics
Electronic, Optical and Magnetic Materials
law.invention
Magnetic field
symbols.namesake
X-ray Raman scattering
Raman cooling
law
symbols
Condensed Matter::Strongly Correlated Electrons
Coherent anti-Stokes Raman spectroscopy
Raman spectroscopy
Raman scattering
Bose–Einstein condensate
Subjects
Details
- ISSN :
- 1550235X and 10980121
- Volume :
- 77
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi...........94c43cdfa36fbd4223348ff675d4e058