English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Charge disproportionation and nano phase separation in RSrNiO4

Guo, H., Li, Z. W., Chang, C. F., Hu, Z., Kuo, C.-Y., Perring, T. G., et al. (2020). Charge disproportionation and nano phase separation in RSrNiO4. Scientific Reports, 10(1): 18012, pp. 1-11. doi:10.1038/s41598-020-74884-2.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0007-5D3F-C Version Permalink: http://hdl.handle.net/21.11116/0000-0007-5D43-6
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Guo, H.1, Author              
Li, Z. W.1, Author              
Chang, C. F.2, Author              
Hu, Z.3, Author              
Kuo, C.-Y.1, Author              
Perring, T. G.4, Author
Schmidt, W.4, Author
Piovano, A.4, Author
Schmalzl, K.4, Author
Walker, H. C.4, Author
Lin, H. J.4, Author
Chen, C. T.4, Author
Blanco-Canosa, S.4, Author
Schlappa, J.4, Author
Schüßler-Langeheine, C.4, Author
Hansmann, P.4, Author
Khomskii, D. I.4, Author
Tjeng, L. H.5, Author              
Komarek, A. C.6, Author              
Affiliations:
1Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
2Chun-Fu Chang, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863447              
3Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              
4External Organizations, ou_persistent22              
5Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              
6Alexander Komarek, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863446              

Content

show
hide
Free keywords: article; excitation; phase separation
 Abstract: We have successfully grown centimeter-sized layered RSrNiO 4 single crystals under high oxygen pressures of 120–150 bar by the floating zone technique. This enabled us to perform neutron scattering experiments where we observe close to quarter-integer magnetic peaks below ∼77K that are accompanied by steep upwards dispersing spin excitations. Within the high-frequency Ni–O bond stretching phonon dispersion, a softening at the propagation vector for a checkerboard modulation can be observed. We were able to simulate the magnetic excitation spectra using a model that includes two essential ingredients, namely checkerboard charge disproportionation and nano phase separation. The results thus suggest that charge disproportionation is preferred instead of a Jahn–Teller distortion even for this layered Ni 3 + system. © 2020, The Author(s).

Details

show
hide
Language(s): eng - English
 Dates: 2020-10-222020-10-22
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1038/s41598-020-74884-2
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 10 (1) Sequence Number: 18012 Start / End Page: 1 - 11 Identifier: ISSN: 2045-2322
CoNE: https://pure.mpg.de/cone/journals/resource/2045-2322