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Breaking symmetry with light: ultra-fast ferroelectricity and magnetism from three-phonon coupling

Abstract:

A theory describing how ferroic properties can emerge transiently in the ultra-fast regime by breaking symmetry with light through three-phonon coupling is presented. Particular emphasis is placed on the special case when two exactly degenerate mid-infra-red or THz phonons are resonantly pumped, since this situation can give rise to an exactly rectified ferroic response with damping envelopes of ~ 1 ps or less. Light-induced ferroelectricity and ferromagnetism are discussed in this context, a...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1103/PhysRevB.97.085145

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Oxford college:
Wadham College
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review B Journal website
Volume:
97
Issue:
8
Pages:
1-9
Publication date:
2018-02-22
Acceptance date:
2018-02-09
DOI:
EISSN:
2469-9969
ISSN:
2469-9950
Pubs id:
pubs:811650
URN:
uri:22d30a79-08ae-4a27-8778-7d4897253363
UUID:
uuid:22d30a79-08ae-4a27-8778-7d4897253363
Local pid:
pubs:811650
Keywords:

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