Ferroelectric InMnO3: Growth of Single Crystals, Structure and High-Temperature Phase Transitions

Maged F. Bekheet; Ingrid Svoboda; Na Liu; Lkhamsuren Bazarjargal; Elisabeth Irran; Christian Dietz; Robert W. Stark; Ralf Riedel; Aleksander Gurlo

doi:10.1016/j.jssc.2016.05.031

Ferroelectric InMnO3: Growth of Single Crystals, Structure and High-Temperature Phase Transitions

Maged F. Bekheet
, Ingrid Svoboda
, Na Liu
, Lkhamsuren Bazarjargal
, Elisabeth Irran
, Christian Dietz
, Robert W. Stark
, Ralf Riedel
, Aleksander Gurlo

Biochemistry, Chemistry & Physics

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

17 Scopus citations

Abstract

To understand the origin of the ferroelectricity in InMnO3, single crystals with average size of 1 mm were grown in PbF2 flux at 950 °C. The results of single crystal X-ray diffraction, second harmonic generation and piezoresponse force microscopy studies of high-quality InMnO3 single crystals reveal that the room-temperature state in this material is ferroelectric with P63cm symmetry. The polar InMnO3 specimen undergoes a reversible phase transition from non-centrosymmetric P63cm structure to a centrosymmetric P63/mmc structure at 700 °C as confirmed by the in situ high-temperature Raman spectroscopic and synchrotron X-ray diffraction experiments.

Original language	Undefined/Unknown
Pages (from-to)	54-63
Number of pages	10
Journal	Journal of Solid State Chemistry
Volume	241
DOIs	https://doi.org/10.1016/j.jssc.2016.05.031
State	Published - Jun 7 2016

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10.1016/j.jssc.2016.05.031

Cite this

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title = "Ferroelectric InMnO3: Growth of Single Crystals, Structure and High-Temperature Phase Transitions",

abstract = "To understand the origin of the ferroelectricity in InMnO3, single crystals with average size of 1 mm were grown in PbF2 flux at 950 °C. The results of single crystal X-ray diffraction, second harmonic generation and piezoresponse force microscopy studies of high-quality InMnO3 single crystals reveal that the room-temperature state in this material is ferroelectric with P63cm symmetry. The polar InMnO3 specimen undergoes a reversible phase transition from non-centrosymmetric P63cm structure to a centrosymmetric P63/mmc structure at 700 °C as confirmed by the in situ high-temperature Raman spectroscopic and synchrotron X-ray diffraction experiments. ",

author = "Bekheet, \{Maged F.\} and Ingrid Svoboda and Na Liu and Lkhamsuren Bazarjargal and Elisabeth Irran and Christian Dietz and Stark, \{Robert W.\} and Ralf Riedel and Aleksander Gurlo",

year = "2016",

month = jun,

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doi = "10.1016/j.jssc.2016.05.031",

language = "Undefined/Unknown",

volume = "241",

pages = "54--63",

journal = "Journal of Solid State Chemistry",

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publisher = "Academic Press Inc.",

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TY - JOUR

T1 - Ferroelectric InMnO3

T2 - Growth of Single Crystals, Structure and High-Temperature Phase Transitions

AU - Bekheet, Maged F.

AU - Svoboda, Ingrid

AU - Liu, Na

AU - Bazarjargal, Lkhamsuren

AU - Irran, Elisabeth

AU - Dietz, Christian

AU - Stark, Robert W.

AU - Riedel, Ralf

AU - Gurlo, Aleksander

PY - 2016/6/7

Y1 - 2016/6/7

N2 - To understand the origin of the ferroelectricity in InMnO3, single crystals with average size of 1 mm were grown in PbF2 flux at 950 °C. The results of single crystal X-ray diffraction, second harmonic generation and piezoresponse force microscopy studies of high-quality InMnO3 single crystals reveal that the room-temperature state in this material is ferroelectric with P63cm symmetry. The polar InMnO3 specimen undergoes a reversible phase transition from non-centrosymmetric P63cm structure to a centrosymmetric P63/mmc structure at 700 °C as confirmed by the in situ high-temperature Raman spectroscopic and synchrotron X-ray diffraction experiments.

AB - To understand the origin of the ferroelectricity in InMnO3, single crystals with average size of 1 mm were grown in PbF2 flux at 950 °C. The results of single crystal X-ray diffraction, second harmonic generation and piezoresponse force microscopy studies of high-quality InMnO3 single crystals reveal that the room-temperature state in this material is ferroelectric with P63cm symmetry. The polar InMnO3 specimen undergoes a reversible phase transition from non-centrosymmetric P63cm structure to a centrosymmetric P63/mmc structure at 700 °C as confirmed by the in situ high-temperature Raman spectroscopic and synchrotron X-ray diffraction experiments.

U2 - 10.1016/j.jssc.2016.05.031

DO - 10.1016/j.jssc.2016.05.031

M3 - Article

SN - 0022-4596

VL - 241

SP - 54

EP - 63

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -