Time-Resolved Optical Study Of The Ferroelectric Metal LiOsO<sub>3</sub>

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APS March Meeting 2018

Volume 63, Number 1

Monday–Friday, March 5–9, 2018; Los Angeles, California

Session A44: Crystalline Structure and Electronic Correlations

8:00 AM–11:00 AM, Monday, March 5, 2018
LACC Room: 504

Sponsoring Unit: DCMP
Chair: Jason Hancock, Univ of Connecticut - Storrs

Abstract ID: BAPS.2018.MAR.A44.2

Abstract: A44.00002 : Time-Resolved Optical Study Of The Ferroelectric Metal LiOsO₃

8:12 AM–8:24 AM

Abstract

Presenter:

Nicholas Laurita
(Institute For Quantum Information and Matter, California Institute of Technology)

Authors:

Nicholas Laurita
(Institute For Quantum Information and Matter, California Institute of Technology)

Alon Ron
(Institute For Quantum Information and Matter, California Institute of Technology)

Youguo Shi
(Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences)

David Hsieh
(Institute For Quantum Information and Matter, California Institute of Technology)

Recently, an inversion symmetry breaking metal-to-metal phase transition (T_c = 140K) was shown to exist in the strongly correlated spin-orbit coupled metal LiOsO₃, potentially realizing the long sought after ferroelectric metal first proposed by Anderson and Blount over a half century ago. However, the microscopic origin of the ferroelectric-like distortion below T_c remains unclear. In this work, ultrafast optical pump-probe spectroscopy experiments are utilized to address this question. We �find the fast carrier dynamics to display obvious signatures of the transition, with differing temperature dependence above and below T_c. A two-temperature model is developed to extract the electron-phonon coupling constant of LiOsO₃, which is found to be larger than previously thought. Our results provide critical insight into the dynamics of this uncommon phase transition.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.A44.2

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Bulletin of the American Physical Society

APS March Meeting 2018

Volume 63, Number 1

Monday–Friday, March 5–9, 2018; Los Angeles, California

Session A44: Crystalline Structure and Electronic Correlations

Abstract: A44.00002 : Time-Resolved Optical Study Of The Ferroelectric Metal LiOsO3

Presenter:

Authors:

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Abstract: A44.00002 : Time-Resolved Optical Study Of The Ferroelectric Metal LiOsO₃