Structural anomalies at the magnetic and ferroelectric transitions in R Mn2 O5 (R=Tb,Dy,Ho)

C. R. Dela Cruz; F. Yen; B. Lorenz; M. M. Gospodinov; C. W. Chu; W. Ratcliff; J. W. Lynn; S. Park; S. W. Cheong

doi:10.1103/PhysRevB.73.100406

Structural anomalies at the magnetic and ferroelectric transitions in R Mn2 O5 (R=Tb,Dy,Ho)

C. R. Dela Cruz^*
, F. Yen
, B. Lorenz
, M. M. Gospodinov
, C. W. Chu
, W. Ratcliff
, J. W. Lynn
, S. Park
, S. W. Cheong

^*Corresponding author for this work

University of Houston
Bulgarian Academy of Sciences
Lawrence Berkeley National Laboratory
Hong Kong University of Science and Technology
National Institute of Standards and Technology
Rutgers - The State University of New Jersey, New Brunswick

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

95 Scopus citations

Abstract

Strong anomalies of the thermal expansion coefficients at the magnetic and ferroelectric transitions have been detected in multiferroic R Mn2 O5. Their correlation with anomalies of the specific heat and the dielectric constant is discussed. The results provide evidence for the magnetic origin of the ferroelectricity mediated by strong spin-lattice coupling in the compounds. Neutron scattering data for Ho Mn2 O5 indicate a spin reorientation at the two low-temperature phase transitions.

Original language	English
Article number	100406
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	73
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.73.100406
State	Published - 2006
Externally published	Yes

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10.1103/PhysRevB.73.100406

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title = "Structural anomalies at the magnetic and ferroelectric transitions in R Mn2 O5 (R=Tb,Dy,Ho)",

abstract = "Strong anomalies of the thermal expansion coefficients at the magnetic and ferroelectric transitions have been detected in multiferroic R Mn2 O5. Their correlation with anomalies of the specific heat and the dielectric constant is discussed. The results provide evidence for the magnetic origin of the ferroelectricity mediated by strong spin-lattice coupling in the compounds. Neutron scattering data for Ho Mn2 O5 indicate a spin reorientation at the two low-temperature phase transitions.",

author = "\{Dela Cruz\}, \{C. R.\} and F. Yen and B. Lorenz and Gospodinov, \{M. M.\} and Chu, \{C. W.\} and W. Ratcliff and Lynn, \{J. W.\} and S. Park and Cheong, \{S. W.\}",

year = "2006",

doi = "10.1103/PhysRevB.73.100406",

language = "英语",

volume = "73",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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publisher = "American Physical Society",

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TY - JOUR

T1 - Structural anomalies at the magnetic and ferroelectric transitions in R Mn2 O5 (R=Tb,Dy,Ho)

AU - Dela Cruz, C. R.

AU - Yen, F.

AU - Lorenz, B.

AU - Gospodinov, M. M.

AU - Chu, C. W.

AU - Ratcliff, W.

AU - Lynn, J. W.

AU - Park, S.

AU - Cheong, S. W.

PY - 2006

Y1 - 2006

N2 - Strong anomalies of the thermal expansion coefficients at the magnetic and ferroelectric transitions have been detected in multiferroic R Mn2 O5. Their correlation with anomalies of the specific heat and the dielectric constant is discussed. The results provide evidence for the magnetic origin of the ferroelectricity mediated by strong spin-lattice coupling in the compounds. Neutron scattering data for Ho Mn2 O5 indicate a spin reorientation at the two low-temperature phase transitions.

AB - Strong anomalies of the thermal expansion coefficients at the magnetic and ferroelectric transitions have been detected in multiferroic R Mn2 O5. Their correlation with anomalies of the specific heat and the dielectric constant is discussed. The results provide evidence for the magnetic origin of the ferroelectricity mediated by strong spin-lattice coupling in the compounds. Neutron scattering data for Ho Mn2 O5 indicate a spin reorientation at the two low-temperature phase transitions.

UR - https://www.scopus.com/pages/publications/33645094944

U2 - 10.1103/PhysRevB.73.100406

DO - 10.1103/PhysRevB.73.100406

M3 - 文章

AN - SCOPUS:33645094944

SN - 1098-0121

VL - 73

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 10

M1 - 100406

ER -

Structural anomalies at the magnetic and ferroelectric transitions in R Mn2 O5 (R=Tb,Dy,Ho)

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