Frustration-driven C-4 symmetric order in a naturally-heterostructured superconductor Sr2VO3FeAs

Cited 6 time in webofscience Cited 0 time in scopus
  • Hit : 125
  • Download : 76
A subtle balance between competing interactions in iron-based superconductors (FeSCs) can be tipped by additional interfacial interactions in a heterostructure, often inducing exotic phases with unprecedented properties. Particularly when the proximity-coupled layer is magnetically active, rich phase diagrams are expected in FeSCs, but this has not been explored yet. Here, using high-accuracy As-75 and V-51 nuclear magnetic resonance measurements, we investigate an electronic phase that emerges in the FeAs layer below T-O similar to 155 K of Sr2VO3FeAs, a naturally assembled heterostructure of an FeSC and a Mottinsulating vanadium oxide. We find that frustration of the otherwise dominant Fe stripe and V Neel fluctuations via interfacial coupling induces a charge/orbital order in the FeAs layers, without either static magnetism or broken C-4 symmetry, while suppressing the Neel antiferromagnetism in the SrVO3 layers. These findings demonstrate that the magnetic proximity coupling stabilizes a hidden order in FeSCs, which may also apply to other strongly correlated heterostructures.
Publisher
NATURE PUBLISHING GROUP
Issue Date
2017-12
Language
English
Article Type
Article
Keywords

INTERFACE SUPERCONDUCTIVITY; OXIDE INTERFACES; FESE FILMS; DENSITY; CHALCOGENIDES; SRTIO3; WAVE

Citation

NATURE COMMUNICATIONS, v.8

ISSN
2041-1723
DOI
10.1038/s41467-017-02327-0
URI
http://hdl.handle.net/10203/238781
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
000418247100016.pdf(1.13 MB)Download
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 6 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0