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Singlet Orbital Ordering in Bilayer Sr3Cr2 O7

Jeanneau, Justin et al · American Physical Society · 2017

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Author / responsible party
Jeanneau, Justin et al
Publisher
American Physical Society
Year
2017
ISSN
0031-9007
ISSN
0031-9007
Language
English

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We perform an extensive study of Sr3Cr2O7, the n=2 member of the Ruddlesden-Popper Srn+1CrnO3n+1 system. An antiferromagnetic ordering is clearly visible in the magnetization and the specific heat, which yields a huge transition entropy, Rln(6). By neutron diffraction as a function of temperature we have determined the antiferromagnetic structure that coincides with the one obtained from density functional theory calculations. It is accompanied by anomalous asymmetric distortions of the CrO6 octahedra. Strong coupling and Lanczos calculations on a derived Kugel-Khomskii Hamiltonian yield a simultaneous orbital and moment ordering. Our results favor an exotic ordered phase of orbital singlets not originated by frustration. Fil: Jeanneau, Justin. Université Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia Fil: Toulemonde, Pierre. Université Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia

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APA 7

Jeanneau, J. E. A. (2017). Singlet Orbital Ordering in Bilayer Sr3Cr2 O7. http://hdl.handle.net/11336/72024

MLA

Jeanneau, Justin et al. "Singlet Orbital Ordering in Bilayer Sr3Cr2 O7." 2017. http://hdl.handle.net/11336/72024.

Chicago

Jeanneau, Justin et al. 2017. "Singlet Orbital Ordering in Bilayer Sr3Cr2 O7.". http://hdl.handle.net/11336/72024.

Harvard

Jeanneau, J. E. A. 2017, Singlet Orbital Ordering in Bilayer Sr3Cr2 O7, American Physical Society, available at: http://hdl.handle.net/11336/72024 [Accessed 6 Aug. 2026].

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Title
Singlet Orbital Ordering in Bilayer Sr3Cr2 O7
Author / contributors
Jeanneau, Justin et al
Publisher
American Physical Society
Publication year
2017
ISSN
0031-9007
ISSN
0031-9007
Language
English

Subjects

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SINGLET ORBITAL ORDERING; SR3CR2O7; KUGEL-KHOMSKII HAMILTONIAN; SIMULTANEOUS ORBITAL AND MAGNETIC ORDERING; https://purl.org/becyt/ford/1.3; https://purl.org/becyt/ford/1
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