Electromechanical response of sliding charge-density-waves: Voltage-induced torsional strain in tantalum trisulfide

J. W. Brill; H. Zhang; J. Nichols

doi:10.1016/j.physb.2012.01.019

Electromechanical response of sliding charge-density-waves: Voltage-induced torsional strain in tantalum trisulfide

J. W. Brill, H. Zhang, J. Nichols

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

1 Scopus citations

Abstract

We have measured the hysteretic voltage-induced torsional strain (VITS) in orthorhombic tantalum trisulfide as functions of voltage, temperature, and torque, which was applied by attaching a small magnetic rod to the center of the sample. We have found that the magnitude, speed, and even direction of the VITS hysteresis loops varied with the applied torque, suggesting that the VITS is a consequence of residual torsional strains in the sample interacting with hysteretic, voltage-induced changes of the charge-density-wave wave vector. The VITS response time is much longer than the time needed for the wave vector to change with response to either applied stress or applied voltage and varies inversely with the CDW current, suggesting that the VITS response requires motion of CDW defects.

Original language	English
Pages (from-to)	1737-1740
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	407
Issue number	11
DOIs	https://doi.org/10.1016/j.physb.2012.01.019
State	Published - Jun 1 2012

Bibliographical note

Funding Information:
We thank V. Pokrovskii and D. Dominko for extremely valuable discussions and R. Thorne for providing samples. This research was supported by the U.S. National Science Foundation , Grants DMR-0800367 and EPS-0814194 .

Funding

We thank V. Pokrovskii and D. Dominko for extremely valuable discussions and R. Thorne for providing samples. This research was supported by the U.S. National Science Foundation , Grants DMR-0800367 and EPS-0814194 .

Funders	Funder number
U.S. National Science Foundation (NSF)	DMR-0800367, EPS-0814194

Keywords

Charge-density-wave
Depinning
Torsional strain

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2012.01.019

Cite this

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title = "Electromechanical response of sliding charge-density-waves: Voltage-induced torsional strain in tantalum trisulfide",

abstract = "We have measured the hysteretic voltage-induced torsional strain (VITS) in orthorhombic tantalum trisulfide as functions of voltage, temperature, and torque, which was applied by attaching a small magnetic rod to the center of the sample. We have found that the magnitude, speed, and even direction of the VITS hysteresis loops varied with the applied torque, suggesting that the VITS is a consequence of residual torsional strains in the sample interacting with hysteretic, voltage-induced changes of the charge-density-wave wave vector. The VITS response time is much longer than the time needed for the wave vector to change with response to either applied stress or applied voltage and varies inversely with the CDW current, suggesting that the VITS response requires motion of CDW defects.",

keywords = "Charge-density-wave, Depinning, Torsional strain",

author = "Brill, {J. W.} and H. Zhang and J. Nichols",

note = "Funding Information: We thank V. Pokrovskii and D. Dominko for extremely valuable discussions and R. Thorne for providing samples. This research was supported by the U.S. National Science Foundation , Grants DMR-0800367 and EPS-0814194 .",

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language = "English",

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T2 - Voltage-induced torsional strain in tantalum trisulfide

AU - Brill, J. W.

AU - Zhang, H.

AU - Nichols, J.

N1 - Funding Information: We thank V. Pokrovskii and D. Dominko for extremely valuable discussions and R. Thorne for providing samples. This research was supported by the U.S. National Science Foundation , Grants DMR-0800367 and EPS-0814194 .

PY - 2012/6/1

Y1 - 2012/6/1

N2 - We have measured the hysteretic voltage-induced torsional strain (VITS) in orthorhombic tantalum trisulfide as functions of voltage, temperature, and torque, which was applied by attaching a small magnetic rod to the center of the sample. We have found that the magnitude, speed, and even direction of the VITS hysteresis loops varied with the applied torque, suggesting that the VITS is a consequence of residual torsional strains in the sample interacting with hysteretic, voltage-induced changes of the charge-density-wave wave vector. The VITS response time is much longer than the time needed for the wave vector to change with response to either applied stress or applied voltage and varies inversely with the CDW current, suggesting that the VITS response requires motion of CDW defects.

AB - We have measured the hysteretic voltage-induced torsional strain (VITS) in orthorhombic tantalum trisulfide as functions of voltage, temperature, and torque, which was applied by attaching a small magnetic rod to the center of the sample. We have found that the magnitude, speed, and even direction of the VITS hysteresis loops varied with the applied torque, suggesting that the VITS is a consequence of residual torsional strains in the sample interacting with hysteretic, voltage-induced changes of the charge-density-wave wave vector. The VITS response time is much longer than the time needed for the wave vector to change with response to either applied stress or applied voltage and varies inversely with the CDW current, suggesting that the VITS response requires motion of CDW defects.

KW - Charge-density-wave

KW - Depinning

KW - Torsional strain

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U2 - 10.1016/j.physb.2012.01.019

DO - 10.1016/j.physb.2012.01.019

M3 - Article

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SN - 0921-4526

VL - 407

SP - 1737

EP - 1740

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 11

ER -

Electromechanical response of sliding charge-density-waves: Voltage-induced torsional strain in tantalum trisulfide

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

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