Interplay of spin and lattice degrees of freedom in the frustrated 
antiferromagnet CdCr(2)O(4): High-field and temperature-induced anomalies of 
the elastic constants

Bhattacharjee, S.; Zherlitsyn, S.; Chiatti, O.; Sytcheva, A.; Wosnitza, J.; Moessner, R.; Zhitomirsky, M. E.; Lemmens, P.; Tsurkan, V.; Loidl, A.

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Interplay of spin and lattice degrees of freedom in the frustrated antiferromagnet CdCr(2)O(4): High-field and temperature-induced anomalies of the elastic constants

Bhattacharjee, S., Zherlitsyn, S., Chiatti, O., Sytcheva, A., Wosnitza, J., Moessner, R., et al. (2011). Interplay of spin and lattice degrees of freedom in the frustrated antiferromagnet CdCr(2)O(4): High-field and temperature-induced anomalies of the elastic constants. Physical Review B, 83(18): 184421.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0029-8CBD-2 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0029-8CBE-F

Genre: Journal Article

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Creators:
Bhattacharjee, S.¹, Author
Zherlitsyn, S., Author
Chiatti, O., Author
Sytcheva, A., Author
Wosnitza, J., Author
Moessner, R.¹, Author
Zhitomirsky, M. E.¹, Author
Lemmens, P., Author
Tsurkan, V., Author
Loidl, A., Author

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1Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288

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MPIPKS: YB 2012

Abstract: Temperature and magnetic field studies of the elastic constants of the chromium spinel CdCr(2)O(4) show pronounced anomalies related to strong spin-phonon coupling in this frustrated antiferromagnet. A detailed comparison of the longitudinal acoustic mode propagating along the [111] direction with a theory based on an exchange-striction mechanism leads to an estimate of the strength of the magnetoelastic interaction. The derived spin-phonon coupling constant is in good agreement with previous determinations based on infrared absorption. Further insight is gained from intermediate and high magnetic field experiments in the field regime of the magnetization plateau. The role of the antisymmetric Dzyaloshinskii-Moriya interaction is discussed.

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Dates: Date issued: 2011-05-19

Publication Status: Issued

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Identifiers: eDoc: 608242
ISI: 000290759000006

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Title: Physical Review B

Source Genre: Journal

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Pages: - Volume / Issue: 83 (18) Sequence Number: 184421 Start / End Page: - Identifier: ISSN: 1098-0121