Elastic anomalies at the charge density wave transition in TaS3

J. W. Brill

doi:10.1016/0038-1098(82)91237-6

Elastic anomalies at the charge density wave transition in TaS₃

J. W. Brill

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

46 Scopus citations

Abstract

Vibrating reed measurements of the Young's modulus and internal friction of orthorhombic TaS₃ at its charge density wave transition (222K) are presented. The modulus has a large dip (≈2%) and the internal friction increases (ΔQ^-1 ≈ 5 × 10^-5) at the transition; the latter anomaly is sample dependent and is attributed to the motion of domains in the CDW state. Estimates of the specific heat and expansivity anomalies are made. The qualitative characteristics of the anomalies are compared to those previously observed at CDW transitions in other materials.

Original language	English
Pages (from-to)	925-929
Number of pages	5
Journal	Solid State Communications
Volume	41
Issue number	12
DOIs	https://doi.org/10.1016/0038-1098(82)91237-6
State	Published - Mar 1982

Bibliographical note

Funding Information:
Acknowledgements - I wish to thank K R Subbaswamy and J P Straley for helpful discussions, W Fuqua for assistance with electronxcs and L Race for performing the electron microscopy This work was supported in part by the Research Corporation

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(82)91237-6

Cite this

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title = "Elastic anomalies at the charge density wave transition in TaS3",

abstract = "Vibrating reed measurements of the Young's modulus and internal friction of orthorhombic TaS3 at its charge density wave transition (222K) are presented. The modulus has a large dip (≈2%) and the internal friction increases (ΔQ-1 ≈ 5 × 10-5) at the transition; the latter anomaly is sample dependent and is attributed to the motion of domains in the CDW state. Estimates of the specific heat and expansivity anomalies are made. The qualitative characteristics of the anomalies are compared to those previously observed at CDW transitions in other materials.",

author = "Brill, {J. W.}",

note = "Funding Information: Acknowledgements - I wish to thank K R Subbaswamy and J P Straley for helpful discussions, W Fuqua for assistance with electronxcs and L Race for performing the electron microscopy This work was supported in part by the Research Corporation",

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N1 - Funding Information: Acknowledgements - I wish to thank K R Subbaswamy and J P Straley for helpful discussions, W Fuqua for assistance with electronxcs and L Race for performing the electron microscopy This work was supported in part by the Research Corporation

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N2 - Vibrating reed measurements of the Young's modulus and internal friction of orthorhombic TaS3 at its charge density wave transition (222K) are presented. The modulus has a large dip (≈2%) and the internal friction increases (ΔQ-1 ≈ 5 × 10-5) at the transition; the latter anomaly is sample dependent and is attributed to the motion of domains in the CDW state. Estimates of the specific heat and expansivity anomalies are made. The qualitative characteristics of the anomalies are compared to those previously observed at CDW transitions in other materials.

AB - Vibrating reed measurements of the Young's modulus and internal friction of orthorhombic TaS3 at its charge density wave transition (222K) are presented. The modulus has a large dip (≈2%) and the internal friction increases (ΔQ-1 ≈ 5 × 10-5) at the transition; the latter anomaly is sample dependent and is attributed to the motion of domains in the CDW state. Estimates of the specific heat and expansivity anomalies are made. The qualitative characteristics of the anomalies are compared to those previously observed at CDW transitions in other materials.

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