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dc.contributor.authorShen, Shi-Peng
dc.contributor.authorWu, Jia-Chuan
dc.contributor.authorSong, Jun-Da
dc.contributor.authorSun, Xue-Feng
dc.contributor.authorYang, Yi-Feng
dc.contributor.authorChai, Yi-Sheng
dc.contributor.authorShang, Da-Shan
dc.contributor.authorWang, Shou-Guo
dc.contributor.authorScott, James F.
dc.contributor.authorSun, Young
dc.identifier.citationShen , S-P , Wu , J-C , Song , J-D , Sun , X-F , Yang , Y-F , Chai , Y-S , Shang , D-S , Wang , S-G , Scott , J F & Sun , Y 2016 , ' Quantum electric-dipole liquid on a triangular lattice ' , Nature Communications , vol. 7 , 10569 , pp. 1-6 .
dc.identifier.otherPURE: 241082220
dc.identifier.otherPURE UUID: f5f5405d-6182-4f97-a106-5001a1b55d9a
dc.identifier.otherScopus: 84957086302
dc.identifier.otherWOS: 000371015300004
dc.descriptionThis work was supported by the National Basic Research Program of China (Grant No. 2015CB921201), the National Natural Science Foundation of China (Grant Nos. 11227405, 11534015, 11374347, 11174263 and U1532147) and the Opening Project of Wuhan National High Magnetic Field Center (Grant No. PHMFF2015021). Y.S. also acknowledges the support from Chinese Academy of Sciences (Grants No. XDB07030200 and KJZD-EW-M05).en
dc.description.abstractGeometric frustration and quantum fluctuations may prohibit the formation of long-range ordering even at the lowest temperature, and therefore liquid-like ground states could be expected. A good example is the quantum spin liquid in frustrated magnets. Geometric frustration and quantum fluctuations can happen beyond magnetic systems. Here we propose that quantum electric-dipole liquids, analogues of quantum spin liquids, could emerge in frustrated dielectrics where antiferroelectrically coupled electric dipoles reside on a triangular lattice. The quantum paraelectric hexaferrite BaFe12O19 with geometric frustration represents a promising candidate for the proposed electric-dipole liquid. We present a series of experimental lines of evidence, including dielectric permittivity, heat capacity and thermal conductivity measured down to 66 mK, to reveal the existence of an unusual liquid-like quantum phase in BaFe12O19, characterized by itinerant low-energy excitations with a small gap. The possible quantum liquids of electric dipoles in frustrated dielectrics open up a fresh playground for fundamental physics.
dc.relation.ispartofNature Communicationsen
dc.rights© The Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.en
dc.subjectQD Chemistryen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.subjectBiochemistry, Genetics and Molecular Biology(all)en
dc.subjectPhysics and Astronomy(all)en
dc.titleQuantum electric-dipole liquid on a triangular latticeen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.description.statusPeer revieweden

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