Pressure-induced phase transition and phonon softening in

K. A. Smith; S. P. Ramkumar; N. C. Harms; A. J. Clune; S. W. Cheong; Z. Liu; E. A. Nowadnick; J. L. Musfeldt

doi:10.1103/PhysRevB.104.094109

Pressure-induced phase transition and phonon softening in

K. A. Smith
, S. P. Ramkumar
, N. C. Harms
, A. J. Clune
, S. W. Cheong
, Z. Liu
, E. A. Nowadnick
, J. L. Musfeldt

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

9 Scopus citations

Abstract

We combine diamond anvil cell techniques, synchrotron-based infrared and Raman scattering spectroscopies, a symmetry analysis, and complementary lattice dynamics calculations to explore the pressure-driven phase transition in multiferroic . Comparison of the measured and predicted phonon patterns reveals a structural transition at 15 GPa. Symmetry breaking across the polar antipolar transition takes place via changes in the bipyramidal tilting direction and Lu/Sc displacement pattern, analogous to the strain-driven distortion pathway in and temperature-induced transitions in the rare-earth manganites.

Original language	English (US)
Article number	094109
Journal	Physical Review B
Volume	104
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.104.094109
State	Published - Sep 1 2021
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.104.094109

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title = "Pressure-induced phase transition and phonon softening in",

abstract = "We combine diamond anvil cell techniques, synchrotron-based infrared and Raman scattering spectroscopies, a symmetry analysis, and complementary lattice dynamics calculations to explore the pressure-driven phase transition in multiferroic . Comparison of the measured and predicted phonon patterns reveals a structural transition at 15 GPa. Symmetry breaking across the polar antipolar transition takes place via changes in the bipyramidal tilting direction and Lu/Sc displacement pattern, analogous to the strain-driven distortion pathway in and temperature-induced transitions in the rare-earth manganites.",

author = "Smith, \{K. A.\} and Ramkumar, \{S. P.\} and Harms, \{N. C.\} and Clune, \{A. J.\} and Cheong, \{S. W.\} and Z. Liu and Nowadnick, \{E. A.\} and Musfeldt, \{J. L.\}",

note = "Publisher Copyright: {\textcopyright} 2021 American Physical Society",

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doi = "10.1103/PhysRevB.104.094109",

language = "English (US)",

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AU - Smith, K. A.

AU - Ramkumar, S. P.

AU - Harms, N. C.

AU - Clune, A. J.

AU - Cheong, S. W.

AU - Liu, Z.

AU - Nowadnick, E. A.

AU - Musfeldt, J. L.

PY - 2021/9/1

Y1 - 2021/9/1

N2 - We combine diamond anvil cell techniques, synchrotron-based infrared and Raman scattering spectroscopies, a symmetry analysis, and complementary lattice dynamics calculations to explore the pressure-driven phase transition in multiferroic . Comparison of the measured and predicted phonon patterns reveals a structural transition at 15 GPa. Symmetry breaking across the polar antipolar transition takes place via changes in the bipyramidal tilting direction and Lu/Sc displacement pattern, analogous to the strain-driven distortion pathway in and temperature-induced transitions in the rare-earth manganites.

AB - We combine diamond anvil cell techniques, synchrotron-based infrared and Raman scattering spectroscopies, a symmetry analysis, and complementary lattice dynamics calculations to explore the pressure-driven phase transition in multiferroic . Comparison of the measured and predicted phonon patterns reveals a structural transition at 15 GPa. Symmetry breaking across the polar antipolar transition takes place via changes in the bipyramidal tilting direction and Lu/Sc displacement pattern, analogous to the strain-driven distortion pathway in and temperature-induced transitions in the rare-earth manganites.

UR - https://www.scopus.com/pages/publications/85115887932

UR - https://www.scopus.com/pages/publications/85115887932#tab=citedBy

U2 - 10.1103/PhysRevB.104.094109

DO - 10.1103/PhysRevB.104.094109

M3 - Article

AN - SCOPUS:85115887932

SN - 2469-9950

VL - 104

JO - Physical Review B

JF - Physical Review B

IS - 9

M1 - 094109

ER -

Pressure-induced phase transition and phonon softening in

Abstract

All Science Journal Classification (ASJC) codes

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