Crystal symmetry and high-magnetic-field specific heat of SrCu{sub 2}(BO{sub 3}){sub 2}
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- MST-NHMFL, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- National Institute of Chemical Physics and Biophysics (NICPB), Tallinn (Estonia)
- Department of Physics, FMF University of Ljubljana, 1000 Ljubljana (Slovenia)
- J. Stefan Institute, 1000 Ljubljana (Slovenia)
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- Department of Physics and Astronomy, McMaster University, Hamilton, ON, Canada L8S 4C6 (Canada)
We report measurements of the specific heat of the quantum spin liquid system SrCu{sub 2}(BO{sub 3}){sub 2} in continuous magnetic fields H of up to 33 T. The specific heat data, when combined with a finite temperature Lanczos diagonalization of the Shastry-Sutherland Hamiltonian, indicate the presence of a nearest neighbor Dzyaloshinsky-Moriya (DM) interaction that violates the crystal symmetry. Moreover, the same DM interaction is required to explain the observed electron spin resonance lines for H parallel c.
- OSTI ID:
- 20666281
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 71, Issue 9; Other Information: DOI: 10.1103/PhysRevB.71.092403; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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