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Bibliographic record number: 947347

Journal

Authors: Lazić, Predrag; Pinterić, Marko; Rivas Gongora, David; Pustogow, Andrej; Treptow, Kevin; Ivek, Tomislav; Milat, Ognjen; Gumhalter, Branko; Došlić, Nadja; Dressel, Martin; Tomić, Silvia
Title: Importance of van der Waals interactions and cation-anion coupling in an organic quantum spin liquid
( Importance of van der Waals interactions and cation-anion coupling in an organic quantum spin liquid )
Source: Physical review. B. (2469-9950) 97 (2018), 24;
Paper type: article
Keywords: strongly correlated systems ; mott insulators ; quantum spin liquid ; dielectric properties ; vibrational properties ; density functional theory
( strongly correlated systems ; mott insulators ; quantum spin liquid ; dielectric properties ; vibrational properties ; density functional theory )
Abstract:
The Mott insulator β -EtMe3Sb[Pd(dmit)2]2 belongs to a class of charge transfer solids with highly frustrated triangular lattice of S = 1/2 molecular dimers and a quantum-spin-liquid ground state. Our experimental and ab initio theoretical studies show the fingerprints of strong correlations and disorder, the important role of cation-dimer bonding in charge redistribution, no sign of intra- and interdimer dipoles, and the decisive van der Waals contribution to interdimer interactions and the ground-state structure. The latter consists of quasidegenerate electronic states related to the different configurations of cation moieties, which permit two different equally probable orientations. Upon reducing the temperature, the low-energy excitations slow down, indicating glassy signatures as the cation motion freezes out.
Project / theme: EK-H2020-692194, HRZZ-IP-2013-11-1011
Original language: eng
Citation databases: Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Category: Znanstveni
Research fields:
Physics
Full paper text: 947347.Lazic_dmit_PRB2018.pdf (tekst priložen 10. Srp. 2018. u 15:37 sati)
URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.245134
Broj citata:
Altmetric:
DOI: 10.1103/PhysRevB.97.245134
URL cjelovitog rada:
Google Scholar: Importance of van der Waals interactions and cation-anion coupling in an organic quantum spin liquid
Contrib. to CROSBI by: Silvia Tomić (stomic@ifs.hr), 10. Srp. 2018. u 15:37 sati



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