Spin Ferroquadrupolar Order in the Nematic Phase of FeSe
dc.citation.articleNumber | 247203 | |
dc.citation.issueNumber | 24 | |
dc.citation.journalTitle | Physical Review Letters | |
dc.citation.volumeNumber | 116 | |
dc.contributor.author | Wang, Zhentao | |
dc.contributor.author | Hu, Wen-Jun | |
dc.contributor.author | Nevidomskyy, Andriy H. | |
dc.date.accessioned | 2017-05-03T16:12:49Z | |
dc.date.available | 2017-05-03T16:12:49Z | |
dc.date.issued | 2016 | |
dc.description.abstract | We provide evidence that spin ferroquadrupolar (FQ) order is the likely ground state in the nonmagnetic nematic phase of stoichiometric FeSe. By studying the variational mean-field phase diagram of a bilinear-biquadratic Heisenberg model up to the 2nd nearest neighbor, we find the FQ phase in close proximity to the columnar antiferromagnet commonly realized in iron-based superconductors; the stability of the FQ phase is further verified by the density matrix renormalization group. The dynamical spin structure factor in the FQ state is calculated with flavor-wave theory, which yields a qualitatively consistent result with inelastic neutron scattering experiments on FeSe at both low and high energies. We verify that FQ can coexist with C4 breaking environments in the mean-field calculation, and further discuss the possibility that quantum fluctuations in FQ act as a source of nematicity. | |
dc.identifier.citation | Wang, Zhentao, Hu, Wen-Jun and Nevidomskyy, Andriy H.. "Spin Ferroquadrupolar Order in the Nematic Phase of FeSe." <i>Physical Review Letters,</i> 116, no. 24 (2016) American Physical Society: https://doi.org/10.1103/PhysRevLett.116.247203. | |
dc.identifier.doi | https://doi.org/10.1103/PhysRevLett.116.247203 | |
dc.identifier.uri | https://hdl.handle.net/1911/94124 | |
dc.language.iso | eng | |
dc.publisher | American Physical Society | |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | |
dc.title | Spin Ferroquadrupolar Order in the Nematic Phase of FeSe | |
dc.type | Journal article | |
dc.type.dcmi | Text | |
dc.type.publication | publisher version |
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