Thermal expansion and pressure effect in MnWO4

R. P. Chaudhury; F. Yen; C. R. dela Cruz; B. Lorenz; Y. Q. Wang; Y. Y. Sun; C. W. Chu

doi:10.1016/j.physb.2007.10.327

Thermal expansion and pressure effect in MnWO₄

R. P. Chaudhury, F. Yen, C. R. dela Cruz, B. Lorenz, Y. Q. Wang, Y. Y. Sun, C. W. Chu

Executive Vice President

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

40 Citations (Scopus)

Abstract

MnWO₄ has attracted attention because of its ferroelectric property induced by frustrated helical spin order. Strong spin-lattice interaction is necessary to explain ferroelectricity associated with this type of magnetic order. We have conducted thermal expansion measurements along the a, b, c axes revealing the existence of strong anisotropic lattice anomalies at T₁ = 7.8 K, the temperature of the magnetic lock-in transition into a commensurate low-temperature (reentrant paraelectric) phase. The effect of hydrostatic pressure up to 1.8 GPa on the FE phase is investigated by measuring the dielectric constant and the FE polarization. The low-temperature commensurate and paraelectric phase is stabilized and the stability range of the ferroelectric phase is diminished under pressure.

Original language	English
Pages (from-to)	1428-1430
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.327
Publication status	Published - 2008 Apr 1

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1016/j.physb.2007.10.327

Cite this

@article{2a1c2f930fa64ee7bca3ecadbb7315bc,

title = "Thermal expansion and pressure effect in MnWO4",

abstract = "MnWO4 has attracted attention because of its ferroelectric property induced by frustrated helical spin order. Strong spin-lattice interaction is necessary to explain ferroelectricity associated with this type of magnetic order. We have conducted thermal expansion measurements along the a, b, c axes revealing the existence of strong anisotropic lattice anomalies at T1 = 7.8 K, the temperature of the magnetic lock-in transition into a commensurate low-temperature (reentrant paraelectric) phase. The effect of hydrostatic pressure up to 1.8 GPa on the FE phase is investigated by measuring the dielectric constant and the FE polarization. The low-temperature commensurate and paraelectric phase is stabilized and the stability range of the ferroelectric phase is diminished under pressure.",

author = "Chaudhury, {R. P.} and F. Yen and {dela Cruz}, {C. R.} and B. Lorenz and Wang, {Y. Q.} and Sun, {Y. Y.} and Chu, {C. W.}",

year = "2008",

month = apr,

day = "1",

doi = "10.1016/j.physb.2007.10.327",

language = "English",

volume = "403",

pages = "1428--1430",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "5-9",

}

TY - JOUR

T1 - Thermal expansion and pressure effect in MnWO4

AU - Chaudhury, R. P.

AU - Yen, F.

AU - dela Cruz, C. R.

AU - Lorenz, B.

AU - Wang, Y. Q.

AU - Sun, Y. Y.

AU - Chu, C. W.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - MnWO4 has attracted attention because of its ferroelectric property induced by frustrated helical spin order. Strong spin-lattice interaction is necessary to explain ferroelectricity associated with this type of magnetic order. We have conducted thermal expansion measurements along the a, b, c axes revealing the existence of strong anisotropic lattice anomalies at T1 = 7.8 K, the temperature of the magnetic lock-in transition into a commensurate low-temperature (reentrant paraelectric) phase. The effect of hydrostatic pressure up to 1.8 GPa on the FE phase is investigated by measuring the dielectric constant and the FE polarization. The low-temperature commensurate and paraelectric phase is stabilized and the stability range of the ferroelectric phase is diminished under pressure.

AB - MnWO4 has attracted attention because of its ferroelectric property induced by frustrated helical spin order. Strong spin-lattice interaction is necessary to explain ferroelectricity associated with this type of magnetic order. We have conducted thermal expansion measurements along the a, b, c axes revealing the existence of strong anisotropic lattice anomalies at T1 = 7.8 K, the temperature of the magnetic lock-in transition into a commensurate low-temperature (reentrant paraelectric) phase. The effect of hydrostatic pressure up to 1.8 GPa on the FE phase is investigated by measuring the dielectric constant and the FE polarization. The low-temperature commensurate and paraelectric phase is stabilized and the stability range of the ferroelectric phase is diminished under pressure.

UR - http://www.scopus.com/inward/record.url?scp=39849105381&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=39849105381&partnerID=8YFLogxK

U2 - 10.1016/j.physb.2007.10.327

DO - 10.1016/j.physb.2007.10.327

M3 - Article

AN - SCOPUS:39849105381

SN - 0921-4526

VL - 403

SP - 1428

EP - 1430

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 5-9

ER -

Thermal expansion and pressure effect in MnWO₄

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this