Local bonds anomalies and dynamics in bismuth ferrite

J. W. Lin; J. S. Gardner; C. W. Wang; G. Deng; C. M. Wu; V. K. Peterson; J. G. Lin

doi:10.1063/1.4978637

Local bonds anomalies and dynamics in bismuth ferrite

J. W. Lin, J. S. Gardner, C. W. Wang, G. Deng, C. M. Wu, V. K. Peterson, J. G. Lin

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

2 Scopus citations

Abstract

The temperature evolution of the chemical and magnetic sublattice of bismuth ferrite has been investigated by neutron scattering below room temperature. Although the bulk lattice structure performed as expected, anomalies were measured in the local Bi-Fe and Fe-O bond lengths around 205 K, distorting the Fe polyhedra. The intensity and width of magnetic Bragg reflections were observed not to monotonically decrease as the system cooled, with distinct anomalies at 205 K. Inelastic neutron scattering above and below the 205 K transition revealed no significant difference in the low energy acoustic phonon. These insights will underpin and stimulate more detailed work aimed at understanding further the bismuth ferrite ordering taking place around 205 K.

Original language	English
Article number	055836
Journal	AIP Advances
Volume	7
Issue number	5
DOIs	https://doi.org/10.1063/1.4978637
State	Published - May 1 2017
Externally published	Yes

Funding

This work is financially supported in part by National Synchrotron Radiation Research Center, National Taiwan University and Ministry of Science and Technology of R. O. C. with the project nos. MOST-102-2739-M-213-001-MY3 and MOST-102-2112-M-002-012-MY3.

Funders	Funder number
Ministry of Science and Technology, Taiwan	MOST-102-2739-M-213-001-MY3, MOST-102-2112-M-002-012-MY3
National Taiwan University
National Synchrotron Radiation Research Center

Access to Document

10.1063/1.4978637

Cite this

@article{016aba6e86644807b59393951fce7186,

title = "Local bonds anomalies and dynamics in bismuth ferrite",

abstract = "The temperature evolution of the chemical and magnetic sublattice of bismuth ferrite has been investigated by neutron scattering below room temperature. Although the bulk lattice structure performed as expected, anomalies were measured in the local Bi-Fe and Fe-O bond lengths around 205 K, distorting the Fe polyhedra. The intensity and width of magnetic Bragg reflections were observed not to monotonically decrease as the system cooled, with distinct anomalies at 205 K. Inelastic neutron scattering above and below the 205 K transition revealed no significant difference in the low energy acoustic phonon. These insights will underpin and stimulate more detailed work aimed at understanding further the bismuth ferrite ordering taking place around 205 K.",

author = "Lin, {J. W.} and Gardner, {J. S.} and Wang, {C. W.} and G. Deng and Wu, {C. M.} and Peterson, {V. K.} and Lin, {J. G.}",

note = "Publisher Copyright: {\textcopyright} 2017 Author(s).",

year = "2017",

month = may,

day = "1",

doi = "10.1063/1.4978637",

language = "English",

volume = "7",

journal = "AIP Advances",

issn = "2158-3226",

publisher = "American Institute of Physics",

number = "5",

}

TY - JOUR

T1 - Local bonds anomalies and dynamics in bismuth ferrite

AU - Lin, J. W.

AU - Gardner, J. S.

AU - Wang, C. W.

AU - Deng, G.

AU - Wu, C. M.

AU - Peterson, V. K.

AU - Lin, J. G.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - The temperature evolution of the chemical and magnetic sublattice of bismuth ferrite has been investigated by neutron scattering below room temperature. Although the bulk lattice structure performed as expected, anomalies were measured in the local Bi-Fe and Fe-O bond lengths around 205 K, distorting the Fe polyhedra. The intensity and width of magnetic Bragg reflections were observed not to monotonically decrease as the system cooled, with distinct anomalies at 205 K. Inelastic neutron scattering above and below the 205 K transition revealed no significant difference in the low energy acoustic phonon. These insights will underpin and stimulate more detailed work aimed at understanding further the bismuth ferrite ordering taking place around 205 K.

AB - The temperature evolution of the chemical and magnetic sublattice of bismuth ferrite has been investigated by neutron scattering below room temperature. Although the bulk lattice structure performed as expected, anomalies were measured in the local Bi-Fe and Fe-O bond lengths around 205 K, distorting the Fe polyhedra. The intensity and width of magnetic Bragg reflections were observed not to monotonically decrease as the system cooled, with distinct anomalies at 205 K. Inelastic neutron scattering above and below the 205 K transition revealed no significant difference in the low energy acoustic phonon. These insights will underpin and stimulate more detailed work aimed at understanding further the bismuth ferrite ordering taking place around 205 K.

UR - http://www.scopus.com/inward/record.url?scp=85015072142&partnerID=8YFLogxK

U2 - 10.1063/1.4978637

DO - 10.1063/1.4978637

M3 - Article

AN - SCOPUS:85015072142

SN - 2158-3226

VL - 7

JO - AIP Advances

JF - AIP Advances

IS - 5

M1 - 055836

ER -

Local bonds anomalies and dynamics in bismuth ferrite

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this