Lost surface waves in nonpiezoelectric solids

Lost surface waves in nonpiezoelectric solids The existence of shear surface acoustic waves (SAWs) has been regarded as impossible in nonpiezoelectrics with homogeneous flat surfaces. We show that transverse shear SAWs can propagate near the flat surfaces of all crystalline dielectrics due to the omnipresent flexoelectric coupling. It appears that the penetration depth of the previously unexplored SAW is defined by the flexocoupling strength. Since the SAW occurs due to the flexoelectric coupling, we name it the flexoelectric SAW (flexo-SAW). We predict that the phonon spectra corresponding to the flexo-SAWs and bulk phonon modes can be separated in thin nonpiezoelectric films, such as strontium titanate. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

Lost surface waves in nonpiezoelectric solids

Preview Only

Lost surface waves in nonpiezoelectric solids

Abstract

The existence of shear surface acoustic waves (SAWs) has been regarded as impossible in nonpiezoelectrics with homogeneous flat surfaces. We show that transverse shear SAWs can propagate near the flat surfaces of all crystalline dielectrics due to the omnipresent flexoelectric coupling. It appears that the penetration depth of the previously unexplored SAW is defined by the flexocoupling strength. Since the SAW occurs due to the flexoelectric coupling, we name it the flexoelectric SAW (flexo-SAW). We predict that the phonon spectra corresponding to the flexo-SAWs and bulk phonon modes can be separated in thin nonpiezoelectric films, such as strontium titanate.
Loading next page...
 
/lp/aps_physical/lost-surface-waves-in-nonpiezoelectric-solids-ntrtFw2Y1q
Publisher
American Physical Society (APS)
Copyright
Copyright © ©2017 American Physical Society
ISSN
1098-0121
eISSN
1550-235X
D.O.I.
10.1103/PhysRevB.96.045411
Publisher site
See Article on Publisher Site

Abstract

The existence of shear surface acoustic waves (SAWs) has been regarded as impossible in nonpiezoelectrics with homogeneous flat surfaces. We show that transverse shear SAWs can propagate near the flat surfaces of all crystalline dielectrics due to the omnipresent flexoelectric coupling. It appears that the penetration depth of the previously unexplored SAW is defined by the flexocoupling strength. Since the SAW occurs due to the flexoelectric coupling, we name it the flexoelectric SAW (flexo-SAW). We predict that the phonon spectra corresponding to the flexo-SAWs and bulk phonon modes can be separated in thin nonpiezoelectric films, such as strontium titanate.

Journal

Physical Review BAmerican Physical Society (APS)

Published: Jul 11, 2017

There are no references for this article.

Sorry, we don’t have permission to share this article on DeepDyve,
but here are related articles that you can start reading right now:

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off