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Sökning: onr:"swepub:oai:DiVA.org:su-211913" > Quasimolecular elec...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005696naa a2200733 4500
001oai:DiVA.org:su-211913
003SwePub
008221205s2022 | |||||||||||000 ||eng|
009oai:DiVA.org:kth-323919
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-2119132 URI
0247 a https://doi.org/10.1103/PhysRevB.106.1551072 DOI
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3239192 URI
040 a (SwePub)sud (SwePub)kth
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Revelli, A.u Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.4 aut
2451 0a Quasimolecular electronic structure of the spin-liquid candidate Ba3 InIr2 O9
264 1b American Physical Society,c 2022
338 a print2 rdacarrier
500 a QC 20230227
520 a The mixed-valent iridate Ba3InIr2O9 has been discussed as a promising candidate for quantum spin-liquid behavior. The compound exhibits Ir4.5+ ions in face-sharing IrO6 octahedra forming Ir2O9 dimers with three t2g holes per dimer. Our results establish Ba3InIr2O9 as a cluster Mott insulator. Strong intradimer hopping delocalizes the three t2g holes in quasimolecular dimer states while interdimer charge fluctuations are suppressed by Coulomb repulsion. The magnetism of Ba3InIr2O9 emerges from spin-orbit entangled quasimolecular moments with yet unexplored interactions, opening up a new route to unconventional magnetic properties of 5d compounds. Using single-crystal x-ray diffraction we find the monoclinic space group C2/c already at room temperature. Dielectric spectroscopy shows insulating behavior. Resonant inelastic x-ray scattering reveals a rich excitation spectrum below 1.5 eV with a sinusoidal dynamical structure factor that unambiguously demonstrates the quasimolecular character of the electronic states. Below 0.3 eV, we observe a series of excitations. According to exact diagonalization calculations, such low-energy excitations reflect the proximity of Ba3InIr2O9 to a hopping-induced phase transition based on the condensation of a quasimolecular spin-orbit exciton. The dimer ground state roughly hosts two holes in a bonding j=1/2 orbital and the third hole in a bonding j=3/2 orbital. 
650 7a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng
653 a Binary alloys
653 a Dimers
653 a Electronic structure
653 a Mott insulators
653 a Single crystals
653 a X ray scattering
653 a Charge fluctuations
653 a Electronic.structure
653 a Interdimers
653 a Liquid behavior
653 a Mixed-valent
653 a Orbitals
653 a Quantum spin liquid
653 a Spin liquids
653 a Spin orbits
653 a Ground state
7001 a Moretti Sala, M.u European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France.;Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy.,Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.4 aut
7001 a Monaco, G.u Univ Padua, Dipartimento Fis & Astron Galileo Galilei, I-35121 Padua, Italy.,Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.4 aut
7001 a Magnaterra, M.u Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.4 aut
7001 a Attig, J.u Univ Cologne, Inst Theoret Phys, D-50937 Cologne, Germany.4 aut
7001 a Peterlini, L.u Univ Cologne, Inst Theoret Phys, D-50937 Cologne, Germany.4 aut
7001 a Dey, T.u Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.;Indian Sch Mines, Dept Petr Engn, IIT, Dhanbad 826004, Jharkhand, India.;Univ Augsburg, Ctr Elect Correlat & Magnetism, Expt Phys 6, D-86159 Augsburg, Germany.4 aut
7001 a Tsirlin, A. A.u Univ Augsburg, Ctr Elect Correlat & Magnetism, Expt Phys 6, D-86159 Augsburg, Germany.4 aut
7001 a Gegenwart, P.u Univ Augsburg, Ctr Elect Correlat & Magnetism, Expt Phys 6, D-86159 Augsburg, Germany.4 aut
7001 a Fröhlich, T.u Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.4 aut
7001 a Braden, M.4 aut
7001 a Grams, C.u Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.4 aut
7001 a Hemberger, J.u Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.4 aut
7001 a Becker, P.u Univ Cologne, Inst Geol & Mineral, Crystallog Sect, D-50674 Cologne, Germany.4 aut
7001 a Hermanns, Mariau KTH,Nordic Institute for Theoretical Physics NORDITA4 aut0 (Swepub:kth)u1b7sey1
7001 a Khomskii, D. I.u Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.4 aut
7001 a van den Brink, J.u IFW Dresden, Inst Theoret Solid State Phys, D-01069 Dresden, Germany.;Tech Univ Dresden, Inst Theoret Phys, D-01069 Dresden, Germany.;Tech Univ Dresden, Wurzburg Dresden Cluster Excellence Ct Qmat, D-01069 Dresden, Germany.4 aut
7001 a Hermanns, Maria,d 1980-u Stockholms universitet,Fysikum,Nordiska institutet för teoretisk fysik (Nordita)4 aut0 (Swepub:su)hermanns
7001 a Grüninger, M.4 aut
7102 a Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.b European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France.;Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy.4 org
7730 t Physical Review Bd : American Physical Societyg 106:15q 106:15x 2469-9950x 2469-9969
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-211913
8564 8u https://doi.org/10.1103/PhysRevB.106.155107
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-323919

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