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  Coexistence of dimerization and long-range magnetic order in the frustrated spin-chain system LiCu2O2: Inelastic light scattering study

Choi, K.-Y., Zvyagin, S. A., Cao, G., & Lemmens, P. (2004). Coexistence of dimerization and long-range magnetic order in the frustrated spin-chain system LiCu2O2: Inelastic light scattering study. Physical Review B, 69(10): 104421.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000E-FFA7-7 Version Permalink: https://hdl.handle.net/21.11116/0000-000E-FFA8-6
Genre: Journal Article

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 Creators:
Choi, K.-Y., Author
Zvyagin, S. A., Author
Cao, G.1, Author           
Lemmens, P.2, Author           
Affiliations:
1Scientific Facility Crystal Growth (Masahiko Isobe), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370496              
2Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370480              

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 Abstract: Raman scattering studies of the frustrated spin chain system LiCu2O2
are reported. Two transitions into a magnetically ordered phase (taken
place at temperatures similar to9 and similar to24 K) have been
confirmed from the analysis of optical properties of the samples.
Interestingly, two different magnetic excitations, seen at 100 and 110
cm(-1) in the magnetically ordered phase superimpose each other
independently, indicating a coherent coexistence of long-range magnetic
order and dimerization. The observed phenomenon is attributed to
magnetostructural peculiarities of LiCu2O2 leading to the intrinsic
presence of magnetic/nonmagnetic impurities on a nanometer scale. In
particular, magnetic impurities play a significant role in driving the
transition from an incommensurate state to a Neel ordered one at 9 K.

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Language(s): eng - English
 Dates: 2004
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 192802
ISI: 000220813500059
 Degree: -

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Title: Physical Review B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 69 (10) Sequence Number: 104421 Start / End Page: - Identifier: ISSN: 1098-0121