Features of structural phase transition in La1-xSrFeO 3

M. Mogi; Y. Inoue; M. Arao; Y. Koyama

doi:10.1016/S0921-4534(03)01079-7

Features of structural phase transition in La_1-xSrFeO ₃

M. Mogi^*, Y. Inoue, M. Arao, Y. Koyama

^*Corresponding author for this work

School of Fundamental Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

The structural phase transition in the insulating phase of La _1-xSr_xFeO₃ has been examined by X-ray powder diffraction. Based on the Rietveld analysis of the obtained profiles, the R3̄c-Pbnm structural transition was confirmed to take place in this oxide system. The interesting feature of the transition is that it is characterized by the appearance of the antiferroelectric displacement of the La/Sr atom, in addition to the change in the rotational-displacement pattern, R ₂₅^x+R₂₅^y+R₂₅ ^z→R₂₅^x+R₂₅^y+M ₃^z. It is thus understood that the low-temperature Pbnm phase can be identified as an antiferroelectric phase in oxides having a simple perovskite structure.

Original language	English
Pages (from-to)	295-299
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	392-396
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(03)01079-7
Publication status	Published - 2003 Oct 1
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: 2002 Nov 11 → 2002 Nov 13

Keywords

LaSrFeO
Rietveld refinement
Structural phase transition
Transition temperature
X-ray powder diffraction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4534(03)01079-7

Cite this

@article{f07703427fe74ee1a48f4f62cec24001,

title = "Features of structural phase transition in La1-xSrFeO 3",

abstract = "The structural phase transition in the insulating phase of La 1-xSrxFeO3 has been examined by X-ray powder diffraction. Based on the Rietveld analysis of the obtained profiles, the R{\=3}c-Pbnm structural transition was confirmed to take place in this oxide system. The interesting feature of the transition is that it is characterized by the appearance of the antiferroelectric displacement of the La/Sr atom, in addition to the change in the rotational-displacement pattern, R 25x+R25y+R25 z→R25x+R25y+M 3z. It is thus understood that the low-temperature Pbnm phase can be identified as an antiferroelectric phase in oxides having a simple perovskite structure.",

keywords = "LaSrFeO, Rietveld refinement, Structural phase transition, Transition temperature, X-ray powder diffraction",

author = "M. Mogi and Y. Inoue and M. Arao and Y. Koyama",

year = "2003",

month = oct,

day = "1",

doi = "10.1016/S0921-4534(03)01079-7",

language = "English",

volume = "392-396",

pages = "295--299",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "PART 1",

note = "Proceedings of the 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

}

TY - JOUR

T1 - Features of structural phase transition in La1-xSrFeO 3

AU - Mogi, M.

AU - Inoue, Y.

AU - Arao, M.

AU - Koyama, Y.

PY - 2003/10/1

Y1 - 2003/10/1

N2 - The structural phase transition in the insulating phase of La 1-xSrxFeO3 has been examined by X-ray powder diffraction. Based on the Rietveld analysis of the obtained profiles, the R3̄c-Pbnm structural transition was confirmed to take place in this oxide system. The interesting feature of the transition is that it is characterized by the appearance of the antiferroelectric displacement of the La/Sr atom, in addition to the change in the rotational-displacement pattern, R 25x+R25y+R25 z→R25x+R25y+M 3z. It is thus understood that the low-temperature Pbnm phase can be identified as an antiferroelectric phase in oxides having a simple perovskite structure.

AB - The structural phase transition in the insulating phase of La 1-xSrxFeO3 has been examined by X-ray powder diffraction. Based on the Rietveld analysis of the obtained profiles, the R3̄c-Pbnm structural transition was confirmed to take place in this oxide system. The interesting feature of the transition is that it is characterized by the appearance of the antiferroelectric displacement of the La/Sr atom, in addition to the change in the rotational-displacement pattern, R 25x+R25y+R25 z→R25x+R25y+M 3z. It is thus understood that the low-temperature Pbnm phase can be identified as an antiferroelectric phase in oxides having a simple perovskite structure.

KW - LaSrFeO

KW - Rietveld refinement

KW - Structural phase transition

KW - Transition temperature

KW - X-ray powder diffraction

UR - http://www.scopus.com/inward/record.url?scp=0042691431&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042691431&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(03)01079-7

DO - 10.1016/S0921-4534(03)01079-7

M3 - Conference article

AN - SCOPUS:0042691431

SN - 0921-4534

VL - 392-396

SP - 295

EP - 299

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - PART 1

T2 - Proceedings of the 15th International Symposium on Superconduc

Y2 - 11 November 2002 through 13 November 2002

ER -