Giant linear magnetoelectric effect at the morphotropic phase boundary of epitaxial Sr 0.5 Ba 0.5 MnO 3 films
Journal Article
·
· Physical Review. B
- Univ. of Arkansas, Fayetteville, AR (United States)
- Univ. of Arkansas, Fayetteville, AR (United States); Nanjing Univ. (China)
- Tsinghua Univ., Beijing (China)
First-principles calculations are conducted to compute linear magnetoelectric coupling coefficients in epitaxial (001) Sr0.5Ba0.5MnO3 films. A large enhancement of different linear magnetoelectric elements is found in a strained-induced morphotropic phase boundary region. Such enhancement is demonstrated to originate from the behavior of the dielectric susceptibility, thanks to a simple phenomenological model that is presently shown to be relevant and accurate. Finally, this work can thus provide a promising approach towards designing highly desired single-phase multiferroic with a colossal magnetoelectric conversion.
- Research Organization:
- Univ. of Arkansas, Fayetteville, AR (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Natural Science Foundation of China (NSFC); National Key Research and Development Program of China
- Grant/Contract Number:
- SC0002220; 11874207; 2020YFA0711504
- OSTI ID:
- 1850805
- Journal Information:
- Physical Review. B, Vol. 103, Issue 6; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
materials science
physics
antiferromagnetism
dielectric properties
epitaxial strain
magnetic susceptibility
magnetoelectric effect
second order phase transitions
structural phase transition
multiferroics
thin films
density functional theory
first-principles calculations
SUPERCONDUCTIVITY AND SUPERFLUIDITY
materials science
physics
antiferromagnetism
dielectric properties
epitaxial strain
magnetic susceptibility
magnetoelectric effect
second order phase transitions
structural phase transition
multiferroics
thin films
density functional theory
first-principles calculations