File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Vacancy ordering and phonon spectrum of the iron-based superconductor K 0.8Fe 1.6Se 2

TitleVacancy ordering and phonon spectrum of the iron-based superconductor K <inf>0.8</inf>Fe <inf>1.6</inf>Se <inf>2</inf>
Authors
Issue Date2012
PublisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prb/
Citation
Physical Review B (Condensed Matter and Materials Physics), 2012, v. 85 n. 2, article no. 024518 How to Cite?
AbstractWe have performed Raman-scattering measurements on a high-quality single crystal of the recently discovered Fe-based superconductor K 0.8 Fe 1.6 Se 2 (T c = 32 K). At least 13 phonon modes were observed in the wave number range 10-300 cm - 1. The spectra possess a fourfold symmetry indicative of bulk vacancy order in the Fe-deficient planes. We perform a vibration analysis based on first-principles calculations, which both confirms the ordered structure and allows a complete mode assignment. We observe an anomaly at T c in the 180 cm - 1 A g mode, which indicates a rather specific type of electron-phonon coupling. © 2012 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/254532
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, A. M.-
dc.contributor.authorLiu, K.-
dc.contributor.authorXiao, J. H.-
dc.contributor.authorHe, J. B.-
dc.contributor.authorWang, D. M.-
dc.contributor.authorChen, G. F.-
dc.contributor.authorNormand, B.-
dc.contributor.authorZhang, Q. M.-
dc.date.accessioned2018-06-19T15:40:48Z-
dc.date.available2018-06-19T15:40:48Z-
dc.date.issued2012-
dc.identifier.citationPhysical Review B (Condensed Matter and Materials Physics), 2012, v. 85 n. 2, article no. 024518-
dc.identifier.issn1098-0121-
dc.identifier.urihttp://hdl.handle.net/10722/254532-
dc.description.abstractWe have performed Raman-scattering measurements on a high-quality single crystal of the recently discovered Fe-based superconductor K 0.8 Fe 1.6 Se 2 (T c = 32 K). At least 13 phonon modes were observed in the wave number range 10-300 cm - 1. The spectra possess a fourfold symmetry indicative of bulk vacancy order in the Fe-deficient planes. We perform a vibration analysis based on first-principles calculations, which both confirms the ordered structure and allows a complete mode assignment. We observe an anomaly at T c in the 180 cm - 1 A g mode, which indicates a rather specific type of electron-phonon coupling. © 2012 American Physical Society.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prb/-
dc.relation.ispartofPhysical Review B (Condensed Matter and Materials Physics)-
dc.titleVacancy ordering and phonon spectrum of the iron-based superconductor K <inf>0.8</inf>Fe <inf>1.6</inf>Se <inf>2</inf>-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevB.85.024518-
dc.identifier.scopuseid_2-s2.0-84863011806-
dc.identifier.volume85-
dc.identifier.issue2-
dc.identifier.spagearticle no. 024518-
dc.identifier.epagearticle no. 024518-
dc.identifier.eissn1550-235X-
dc.identifier.isiWOS:000298985900007-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats