Structural evolution and physical properties of Bi1-xGdxFeO3 ceramics

J. B. Li; G. H. Rao; Y. Xiao; J. K. Liang; J. Luo; G. Y. Liu; J. R. Chen

doi:10.1016/j.actamat.2010.03.007

Structural evolution and physical properties of Bi_1-xGd_xFeO₃ ceramics

J. B. Li^*
, G. H. Rao
, Y. Xiao
, J. K. Liang
, J. Luo
, G. Y. Liu
, J. R. Chen

^*Corresponding author for this work

CAS - Institute of Physics
Jülich Research Centre
CAS - International Center for Material Physics

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

79 Citations (Scopus)

Abstract

The crystal structure and physical properties of Bi_1-xGd_xFeO₃ ceramics with x ≤ 0.5 have been studied by X-ray diffraction, differential scanning calorimetry, dielectric and magnetic measurements. Bi_1-xGd_xFeO₃ compounds crystallize at room temperature in R3c structure for x < 0.08 and in Pbnm structure for x ≥ 0.3. The R3c phase transforms to the Pbnm phase as temperature increases. Temperature-dependent dielectric response and low-temperature X-ray diffraction indicate a phase transition of the Pbnm phase at low-temperature. Detailed structural analysis indicates that the interaction between Bi and O plays an important role in the evolution of structure and physical properties. A phase diagram is constructed to illustrate the physical property-composition-temperature relations.

Original language	English
Pages (from-to)	3701-3708
Number of pages	8
Journal	Acta Materialia
Volume	58
Issue number	10
DOIs	https://doi.org/10.1016/j.actamat.2010.03.007
Publication status	Published - Jun 2010
Externally published	Yes

Keywords

Bi-based magnetoelectric perovskites
Crystal structure
Phase transformation
X-ray diffraction

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10.1016/j.actamat.2010.03.007

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title = "Structural evolution and physical properties of Bi1-xGdxFeO3 ceramics",

abstract = "The crystal structure and physical properties of Bi1-xGdxFeO3 ceramics with x ≤ 0.5 have been studied by X-ray diffraction, differential scanning calorimetry, dielectric and magnetic measurements. Bi1-xGdxFeO3 compounds crystallize at room temperature in R3c structure for x < 0.08 and in Pbnm structure for x ≥ 0.3. The R3c phase transforms to the Pbnm phase as temperature increases. Temperature-dependent dielectric response and low-temperature X-ray diffraction indicate a phase transition of the Pbnm phase at low-temperature. Detailed structural analysis indicates that the interaction between Bi and O plays an important role in the evolution of structure and physical properties. A phase diagram is constructed to illustrate the physical property-composition-temperature relations.",

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year = "2010",

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doi = "10.1016/j.actamat.2010.03.007",

language = "English",

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TY - JOUR

T1 - Structural evolution and physical properties of Bi1-xGdxFeO3 ceramics

AU - Li, J. B.

AU - Rao, G. H.

AU - Xiao, Y.

AU - Liang, J. K.

AU - Luo, J.

AU - Liu, G. Y.

AU - Chen, J. R.

PY - 2010/6

Y1 - 2010/6

N2 - The crystal structure and physical properties of Bi1-xGdxFeO3 ceramics with x ≤ 0.5 have been studied by X-ray diffraction, differential scanning calorimetry, dielectric and magnetic measurements. Bi1-xGdxFeO3 compounds crystallize at room temperature in R3c structure for x < 0.08 and in Pbnm structure for x ≥ 0.3. The R3c phase transforms to the Pbnm phase as temperature increases. Temperature-dependent dielectric response and low-temperature X-ray diffraction indicate a phase transition of the Pbnm phase at low-temperature. Detailed structural analysis indicates that the interaction between Bi and O plays an important role in the evolution of structure and physical properties. A phase diagram is constructed to illustrate the physical property-composition-temperature relations.

AB - The crystal structure and physical properties of Bi1-xGdxFeO3 ceramics with x ≤ 0.5 have been studied by X-ray diffraction, differential scanning calorimetry, dielectric and magnetic measurements. Bi1-xGdxFeO3 compounds crystallize at room temperature in R3c structure for x < 0.08 and in Pbnm structure for x ≥ 0.3. The R3c phase transforms to the Pbnm phase as temperature increases. Temperature-dependent dielectric response and low-temperature X-ray diffraction indicate a phase transition of the Pbnm phase at low-temperature. Detailed structural analysis indicates that the interaction between Bi and O plays an important role in the evolution of structure and physical properties. A phase diagram is constructed to illustrate the physical property-composition-temperature relations.

KW - Bi-based magnetoelectric perovskites

KW - Crystal structure

KW - Phase transformation

KW - X-ray diffraction

UR - https://www.scopus.com/pages/publications/77951022178

U2 - 10.1016/j.actamat.2010.03.007

DO - 10.1016/j.actamat.2010.03.007

M3 - Article

AN - SCOPUS:77951022178

SN - 1359-6454

VL - 58

SP - 3701

EP - 3708

JO - Acta Materialia

JF - Acta Materialia

IS - 10

ER -

Structural evolution and physical properties of Bi_1-xGd_xFeO₃ ceramics

Abstract

Keywords

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