Structural phase transitions in SrTiO3 nanoparticles

Han Zhang; Sizhan Liu; Megan E. Scofield; Stanislaus S. Wong; Xinguo Hong; Vitali B. Prakapenka; Eran Greenberg; Trevor A. Tyson

doi:10.1063/1.4997332

Structural phase transitions in SrTiO₃ nanoparticles

Han Zhang
, Sizhan Liu
, Megan E. Scofield
, Stanislaus S. Wong
, Xinguo Hong
, Vitali B. Prakapenka
, Eran Greenberg
, Trevor A. Tyson

Chemistry

New Jersey Institute of Technology
Stony Brook University
Center for High Pressure Science & Technology Advanced Research
The University of Chicago

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

7 Scopus citations

Abstract

Pressure dependent structural measurements on monodispersed nanoscale SrTiO₃ samples with average diameters of 10 to ∼80 nm were conducted to enhance the understanding of the structural phase diagram of nanoscale SrTiO₃. A robust pressure independent polar structure was found in the 10 nm sample for pressures up to 13 GPa, while a size dependent cubic to tetragonal transition occurs (at P = P_c) for larger particle sizes. The results suggest that the growth of ∼10 nm STO particles on substrates with significant lattice mismatch may maintain a polar state for a large range of strain values, possibly enabling device use.

Original language	English
Article number	052904
Journal	Applied Physics Letters
Volume	111
Issue number	5
DOIs	https://doi.org/10.1063/1.4997332
State	Published - Jul 31 2017

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10.1063/1.4997332

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title = "Structural phase transitions in SrTiO3 nanoparticles",

abstract = "Pressure dependent structural measurements on monodispersed nanoscale SrTiO3 samples with average diameters of 10 to ∼80 nm were conducted to enhance the understanding of the structural phase diagram of nanoscale SrTiO3. A robust pressure independent polar structure was found in the 10 nm sample for pressures up to 13 GPa, while a size dependent cubic to tetragonal transition occurs (at P = Pc) for larger particle sizes. The results suggest that the growth of ∼10 nm STO particles on substrates with significant lattice mismatch may maintain a polar state for a large range of strain values, possibly enabling device use.",

author = "Han Zhang and Sizhan Liu and Scofield, \{Megan E.\} and Wong, \{Stanislaus S.\} and Xinguo Hong and Prakapenka, \{Vitali B.\} and Eran Greenberg and Tyson, \{Trevor A.\}",

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T1 - Structural phase transitions in SrTiO3 nanoparticles

AU - Zhang, Han

AU - Liu, Sizhan

AU - Scofield, Megan E.

AU - Wong, Stanislaus S.

AU - Hong, Xinguo

AU - Prakapenka, Vitali B.

AU - Greenberg, Eran

AU - Tyson, Trevor A.

PY - 2017/7/31

Y1 - 2017/7/31

N2 - Pressure dependent structural measurements on monodispersed nanoscale SrTiO3 samples with average diameters of 10 to ∼80 nm were conducted to enhance the understanding of the structural phase diagram of nanoscale SrTiO3. A robust pressure independent polar structure was found in the 10 nm sample for pressures up to 13 GPa, while a size dependent cubic to tetragonal transition occurs (at P = Pc) for larger particle sizes. The results suggest that the growth of ∼10 nm STO particles on substrates with significant lattice mismatch may maintain a polar state for a large range of strain values, possibly enabling device use.

AB - Pressure dependent structural measurements on monodispersed nanoscale SrTiO3 samples with average diameters of 10 to ∼80 nm were conducted to enhance the understanding of the structural phase diagram of nanoscale SrTiO3. A robust pressure independent polar structure was found in the 10 nm sample for pressures up to 13 GPa, while a size dependent cubic to tetragonal transition occurs (at P = Pc) for larger particle sizes. The results suggest that the growth of ∼10 nm STO particles on substrates with significant lattice mismatch may maintain a polar state for a large range of strain values, possibly enabling device use.

UR - https://www.scopus.com/pages/publications/85027359916

U2 - 10.1063/1.4997332

DO - 10.1063/1.4997332

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AN - SCOPUS:85027359916

SN - 0003-6951

VL - 111

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 5

M1 - 052904

ER -

Structural phase transitions in SrTiO₃ nanoparticles

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