English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Proposal for ultrafast switching of ferroelectrics using midinfrared pulses

Subedi, A. (2015). Proposal for ultrafast switching of ferroelectrics using midinfrared pulses. Physical Review B, 92(21): 214303. doi:10.1103/PhysRevB.92.214303.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-6079-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-607A-D
Genre: Journal Article

Files

show Files
hide Files
:
PhysRevB.92.214303.pdf (Publisher version), 459KB
Name:
PhysRevB.92.214303.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
2015
Copyright Info:
© American Physical Society
License:
-

Locators

show
hide
Locator:
http://dx.doi.org/10.1103/PhysRevB.92.214303 (Publisher version)
Description:
-
Locator:
http://arxiv.org/abs/1511.00149 (Preprint)
Description:
-

Creators

show
hide
 Creators:
Subedi, Alaska1, Author              
Affiliations:
1Theory of Complex Materials, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2074318              

Content

show
hide
Free keywords: PACS numbers: 77.80.Fm, 78.20.Bh, 63.20.Ry, 78.47.J−
 Abstract: I propose a method for ultrafast switching of ferroelectric polarization using midinfrared pulses. This involves selectively exciting the highest frequency A1 phonon mode of a ferroelectric material with an intense midinfrared pulse. Large amplitude oscillations of this mode provides a unidirectional force to the lattice such that it displaces along the lowest frequency A1 phonon mode coordinate because of a nonlinear coupling of the type gQPQIR2 between the two modes. First-principles calculations show that this coupling is large in perovskite transition-metal oxide ferroelectrics, and the sign of the coupling is such that the lattice displaces in the switching direction. Furthermore, I find that the lowest frequency A1 mode has a large QP3 order anharmonicity, which causes a discontinuous switch of electric polarization as the pump amplitude is continuously increased.

Details

show
hide
Language(s): eng - English
 Dates: 2015-10-302015-12-312015-12-01
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevB.92.214303
arXiv: 1511.00149
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 92 (21) Sequence Number: 214303 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008