The spin dynamics in distorted kagome lattices: a comparative Raman study.
J Phys Condens Matter
; 24(18): 185602, 2012 May 09.
Article
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| MEDLINE
| ID: mdl-22508934
ABSTRACT
Despite the conceptional importance of realizing spin liquids in solid states only few compounds are known. On the other hand the effect of lattice distortions and anisotropies on the magnetic exchange topology and the fluctuation spectrum is an interesting problem. We compare the excitation spectra of the two s = 1/2 kagome lattice compounds, volborthite and vesignieite, using Raman scattering. We demonstrate that even small modifications of the crystal structure may have a huge effect on the phonon spectrum and low-temperature properties.
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MEDLINE
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En
Revista:
J Phys Condens Matter
Asunto de la revista:
BIOFISICA
Año:
2012
Tipo del documento:
Article
País de afiliación:
Alemania