English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Ferroelectric Self-Poling in GeTe Films and Crystals

Kriegner, D., Springholz, G., Richter, C., Filet, N., Müller, E., Capron, M., et al. (2019). Ferroelectric Self-Poling in GeTe Films and Crystals. Crystals, 9(7): 335, pp. 1-15. doi:10.3390/cryst9070335.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0004-ABC9-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-ABD1-F
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Kriegner, Dominik1, Author              
Springholz, Gunther2, Author
Richter, Carsten2, Author
Filet, Nicolas2, Author
Müller, Elisabeth2, Author
Capron, Marie2, Author
Berger, Helmut2, Author
Holý, Václav2, Author
Dil, J. Hugo2, Author
Krempaský, Juraj2, Author
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2External Organizations, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: Ferroelectric materials are used in actuators or sensors because of their non-volatile macroscopic electric polarization. GeTe is the simplest known diatomic ferroelectric endowed with exceedingly complex physics related to its crystalline, amorphous, thermoelectric, and-fairly recently discovered-topological properties, making the material potentially interesting for spintronics applications. Typically, ferroelectric materials possess random oriented domains that need poling to achieve macroscopic polarization. By using X-ray absorption fine structure spectroscopy complemented with anomalous diffraction and piezo-response force microscopy, we investigated the bulk ferroelectric structure of GeTe crystals and thin films. Both feature multi-domain structures in the form of oblique domains for films and domain colonies inside crystals. Despite these multi-domain structures which are expected to randomize the polarization direction, our experimental results show that at room temperature there is a preferential ferroelectric order remarkably consistent with theoretical predictions from ideal GeTe crystals. This robust self-poled state has high piezoelectricity and additional poling reveals persistent memory effects.

Details

show
hide
Language(s): eng - English
 Dates: 2019-06-282019-06-28
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000482052800029
DOI: 10.3390/cryst9070335
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Crystals
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Basel, Switzerland : MDPI AG
Pages: - Volume / Issue: 9 (7) Sequence Number: 335 Start / End Page: 1 - 15 Identifier: ISSN: 2073-4352
CoNE: https://pure.mpg.de/cone/journals/resource/2073-4352