Elastic anomalies in the quasi-one-dimensional conductor Nb3Te4

X. D. Xiang; J. W. Brill

doi:10.1016/0038-1098(88)90556-X

Elastic anomalies in the quasi-one-dimensional conductor Nb₃Te₄

X. D. Xiang, J. W. Brill

Physics And Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We have measured the temperature dependence of Young's modulus (E) of the quasi-one-dimensional conductor Nb₃Te₄. ΔE(T) E₀ increases its slope sharply at T₁ ∼ 95K, the commensurate charge density wave (CDW) phase transition. The existence of hysteresis in T₁ confirms that this transition is first-order. A more dramatic anomaly, with a dip in relative modulus of 3×10^-3 has been observed at T₂ ∼ 40K, which is possibly due to another (second-order) CDW phase transition. Peaks in the internal friction have also been observed at these temperatures, but they are two orders of magnitude smaller than the relative changes in E.

Original language	English
Pages (from-to)	249-251
Number of pages	3
Journal	Solid State Communications
Volume	66
Issue number	3
DOIs	https://doi.org/10.1016/0038-1098(88)90556-X
State	Published - Apr 1988

Bibliographical note

Funding Information:
Acknowledgement-We appreciate the assistance of G. Minton in the preparation and x-ray characterization of the samples. This work was supported in part by the National Science Foundation--Solid State Physics, Grant #DMR-8615463.

ASJC Scopus subject areas

Chemistry (all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/0038-1098(88)90556-X

Cite this

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title = "Elastic anomalies in the quasi-one-dimensional conductor Nb3Te4",

abstract = "We have measured the temperature dependence of Young's modulus (E) of the quasi-one-dimensional conductor Nb3Te4. ΔE(T) E0 increases its slope sharply at T1 ∼ 95K, the commensurate charge density wave (CDW) phase transition. The existence of hysteresis in T1 confirms that this transition is first-order. A more dramatic anomaly, with a dip in relative modulus of 3×10-3 has been observed at T2 ∼ 40K, which is possibly due to another (second-order) CDW phase transition. Peaks in the internal friction have also been observed at these temperatures, but they are two orders of magnitude smaller than the relative changes in E.",

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AU - Brill, J. W.

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