Competition between compressive strain and Mn doping on tuning the structure and magnetic behavior of BiFeO3 thin films

Jingyi Chen; Yao Wang; Yuan Deng

doi:10.1142/S1793604715500666

Competition between compressive strain and Mn doping on tuning the structure and magnetic behavior of BiFeO₃ thin films

Jingyi Chen
, Yao Wang^*
, Yuan Deng

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

6 Scopus citations

Abstract

BiFe_1-xMn_xO₃ (BFMO) films (x = 0, 0.05, 0.1) were grown on (001) LaAlO₃ (Lao) substrates to demonstrate the role of chemical pressure on the lattice structure and magnetic behaviors of compressively-strained BiFeO₃ (BFO) films. The structural analyses indicated that the substitution of Jahn-Teller active ion Mn at Fe site tuned the ferroelectric distortion and antiferrodistortive (AFD) rotation in BFO lattice, thus weakened the tetragonal-like (T-like) phase originated from the large substrate clamping. The phase transition mechanism was discussed to reveal the competition between inner lattice distortion and external stress in BFO films. Clear domain variants change from (T-like) phase to rhombohedral-like (R-like) phase provided further evidence for the structure alteration. Meanwhile the gradual relaxation in total lattice strain of BFMO films with increasing x reduced the magnetism contribution from the strong spin and lattice coupling.

Original language	English
Article number	1550066
Journal	Functional Materials Letters
Volume	8
Issue number	6
DOIs	https://doi.org/10.1142/S1793604715500666
State	Published - 1 Dec 2015

Keywords

BiFeMnO films
Mn doping
compressive strain
phase transition

Access to Document

10.1142/S1793604715500666

Cite this

@article{133c1234489f4a1cb04199cfe9b655cd,

title = "Competition between compressive strain and Mn doping on tuning the structure and magnetic behavior of BiFeO3 thin films",

abstract = "BiFe1-xMnxO3 (BFMO) films (x = 0, 0.05, 0.1) were grown on (001) LaAlO3 (Lao) substrates to demonstrate the role of chemical pressure on the lattice structure and magnetic behaviors of compressively-strained BiFeO3 (BFO) films. The structural analyses indicated that the substitution of Jahn-Teller active ion Mn at Fe site tuned the ferroelectric distortion and antiferrodistortive (AFD) rotation in BFO lattice, thus weakened the tetragonal-like (T-like) phase originated from the large substrate clamping. The phase transition mechanism was discussed to reveal the competition between inner lattice distortion and external stress in BFO films. Clear domain variants change from (T-like) phase to rhombohedral-like (R-like) phase provided further evidence for the structure alteration. Meanwhile the gradual relaxation in total lattice strain of BFMO films with increasing x reduced the magnetism contribution from the strong spin and lattice coupling.",

keywords = "BiFeMnO films, Mn doping, compressive strain, phase transition",

author = "Jingyi Chen and Yao Wang and Yuan Deng",

note = "Publisher Copyright: {\textcopyright} 2015 World Scientific Publishing Company.",

year = "2015",

month = dec,

day = "1",

doi = "10.1142/S1793604715500666",

language = "英语",

volume = "8",

journal = "Functional Materials Letters",

issn = "1793-6047",

publisher = "World Scientific",

number = "6",

}

TY - JOUR

T1 - Competition between compressive strain and Mn doping on tuning the structure and magnetic behavior of BiFeO3 thin films

AU - Chen, Jingyi

AU - Wang, Yao

AU - Deng, Yuan

PY - 2015/12/1

Y1 - 2015/12/1

N2 - BiFe1-xMnxO3 (BFMO) films (x = 0, 0.05, 0.1) were grown on (001) LaAlO3 (Lao) substrates to demonstrate the role of chemical pressure on the lattice structure and magnetic behaviors of compressively-strained BiFeO3 (BFO) films. The structural analyses indicated that the substitution of Jahn-Teller active ion Mn at Fe site tuned the ferroelectric distortion and antiferrodistortive (AFD) rotation in BFO lattice, thus weakened the tetragonal-like (T-like) phase originated from the large substrate clamping. The phase transition mechanism was discussed to reveal the competition between inner lattice distortion and external stress in BFO films. Clear domain variants change from (T-like) phase to rhombohedral-like (R-like) phase provided further evidence for the structure alteration. Meanwhile the gradual relaxation in total lattice strain of BFMO films with increasing x reduced the magnetism contribution from the strong spin and lattice coupling.

AB - BiFe1-xMnxO3 (BFMO) films (x = 0, 0.05, 0.1) were grown on (001) LaAlO3 (Lao) substrates to demonstrate the role of chemical pressure on the lattice structure and magnetic behaviors of compressively-strained BiFeO3 (BFO) films. The structural analyses indicated that the substitution of Jahn-Teller active ion Mn at Fe site tuned the ferroelectric distortion and antiferrodistortive (AFD) rotation in BFO lattice, thus weakened the tetragonal-like (T-like) phase originated from the large substrate clamping. The phase transition mechanism was discussed to reveal the competition between inner lattice distortion and external stress in BFO films. Clear domain variants change from (T-like) phase to rhombohedral-like (R-like) phase provided further evidence for the structure alteration. Meanwhile the gradual relaxation in total lattice strain of BFMO films with increasing x reduced the magnetism contribution from the strong spin and lattice coupling.

KW - BiFeMnO films

KW - Mn doping

KW - compressive strain

KW - phase transition

UR - https://www.scopus.com/pages/publications/84946474170

U2 - 10.1142/S1793604715500666

DO - 10.1142/S1793604715500666

M3 - 文章

AN - SCOPUS:84946474170

SN - 1793-6047

VL - 8

JO - Functional Materials Letters

JF - Functional Materials Letters

IS - 6

M1 - 1550066

ER -

Competition between compressive strain and Mn doping on tuning the structure and magnetic behavior of BiFeO₃ thin films

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this