Pressure induced valence and structural phase transition in Ba 2PrRu0.8Ir0.2O6

Brendan J. Kennedy, Leqing Li, Yongjae Lee, Thomas Vogt

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The crystal structure of the ordered double perovskite Ba 2PrRu0.8Ir0.2O6 was investigated as a function of pressure at room temperature. High-resolution synchrotron powder diffraction measurements have revealed the occurrence of a first order phase transition at a critical pressure of about 0.5 GPa. Structural refinements indicate that Ba2PrRu0.8Ir0.2O6 transforms from an ambient pressure monoclinic (P21/n) to a high-pressure tetragonal (P4/mnc) structure. The transition is consistent with a valence change of the Pr ions.

Original languageEnglish
Pages (from-to)3295-3301
Number of pages7
JournalJournal of Physics Condensed Matter
Volume16
Issue number18
DOIs
Publication statusPublished - 2004 May 12

Fingerprint

Phase transitions
valence
critical pressure
synchrotrons
occurrences
crystal structure
high resolution
room temperature
Synchrotrons
diffraction
Perovskite
ions
Crystal structure
Ions
Temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Kennedy, Brendan J. ; Li, Leqing ; Lee, Yongjae ; Vogt, Thomas. / Pressure induced valence and structural phase transition in Ba 2PrRu0.8Ir0.2O6. In: Journal of Physics Condensed Matter. 2004 ; Vol. 16, No. 18. pp. 3295-3301.
@article{b6cf37d1685e4151a1adf313f21a3338,
title = "Pressure induced valence and structural phase transition in Ba 2PrRu0.8Ir0.2O6",
abstract = "The crystal structure of the ordered double perovskite Ba 2PrRu0.8Ir0.2O6 was investigated as a function of pressure at room temperature. High-resolution synchrotron powder diffraction measurements have revealed the occurrence of a first order phase transition at a critical pressure of about 0.5 GPa. Structural refinements indicate that Ba2PrRu0.8Ir0.2O6 transforms from an ambient pressure monoclinic (P21/n) to a high-pressure tetragonal (P4/mnc) structure. The transition is consistent with a valence change of the Pr ions.",
author = "Kennedy, {Brendan J.} and Leqing Li and Yongjae Lee and Thomas Vogt",
year = "2004",
month = "5",
day = "12",
doi = "10.1088/0953-8984/16/18/029",
language = "English",
volume = "16",
pages = "3295--3301",
journal = "Journal of Physics Condensed Matter",
issn = "0953-8984",
publisher = "IOP Publishing Ltd.",
number = "18",

}

Pressure induced valence and structural phase transition in Ba 2PrRu0.8Ir0.2O6. / Kennedy, Brendan J.; Li, Leqing; Lee, Yongjae; Vogt, Thomas.

In: Journal of Physics Condensed Matter, Vol. 16, No. 18, 12.05.2004, p. 3295-3301.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Pressure induced valence and structural phase transition in Ba 2PrRu0.8Ir0.2O6

AU - Kennedy, Brendan J.

AU - Li, Leqing

AU - Lee, Yongjae

AU - Vogt, Thomas

PY - 2004/5/12

Y1 - 2004/5/12

N2 - The crystal structure of the ordered double perovskite Ba 2PrRu0.8Ir0.2O6 was investigated as a function of pressure at room temperature. High-resolution synchrotron powder diffraction measurements have revealed the occurrence of a first order phase transition at a critical pressure of about 0.5 GPa. Structural refinements indicate that Ba2PrRu0.8Ir0.2O6 transforms from an ambient pressure monoclinic (P21/n) to a high-pressure tetragonal (P4/mnc) structure. The transition is consistent with a valence change of the Pr ions.

AB - The crystal structure of the ordered double perovskite Ba 2PrRu0.8Ir0.2O6 was investigated as a function of pressure at room temperature. High-resolution synchrotron powder diffraction measurements have revealed the occurrence of a first order phase transition at a critical pressure of about 0.5 GPa. Structural refinements indicate that Ba2PrRu0.8Ir0.2O6 transforms from an ambient pressure monoclinic (P21/n) to a high-pressure tetragonal (P4/mnc) structure. The transition is consistent with a valence change of the Pr ions.

UR - http://www.scopus.com/inward/record.url?scp=2442688970&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2442688970&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/16/18/029

DO - 10.1088/0953-8984/16/18/029

M3 - Article

AN - SCOPUS:2442688970

VL - 16

SP - 3295

EP - 3301

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

SN - 0953-8984

IS - 18

ER -