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Bibliographic record number: 840191

Journal

Authors: Pinterić, Marko; Lazić, Predrag; Pustogow, Andrej; Ivek, Tomislav; Kuveždić, Marko; Milat, Ognjen; Gumhalter, Branko; Basletić, Mario; Čulo, Matija; Korin-Hamzić, Bojana; Loehle Anja; Huebner, R; Sanz Alonso, M; Hiramatsu, T; Yoshida Y; Saito, Gunzi; Dressel, Martin; Tomić, Silvia
Title: Anion effects on the electronic structure and electrodynamic properties of the Mott insulator kappa$-(BEDT-TT$_2Ag2(CN)3
( Anion effects on the electronic structure and electrodynamic properties of the Mott insulator kappa$-(BEDT-TT$_2Ag2(CN)3 )
Source: Physical review. B, Rapid communication (1082-586X) 94 (2016), 16;
Paper type: article
Keywords: Mott insulator ; quantum spin liquid ; relaxor dielectric relaxation ; DFT calculations ; strongly correlated systems
( Mott insulator ; quantum spin liquid ; relaxor dielectric relaxation ; DFT calculations ; strongly correlated systems )
Abstract:
The Mott insulator $\kappa$-(BEDT-TTF)$_2$\-Ag$_2$(CN)$_3$ forms a highly-frustrated triangular lattice of $S=1/2$ dimers with a possible quantum-spin-liquid state. Our experimental and numerical studies reveal the emergence of a slight charge imbalance between crystallographically inequivalent sites, relaxor dielectric response and hopping dc transport. In a broader perspective we conclude that the universal properties of strongly-correlated charge-transfer salts with spin liquid state are an anion-supported valence band and cyanide-induced quasi-degenerate electronic configurations in the relaxed state. The generic low-energy excitations are caused by charged domain walls rather than by fluctuating electric dipoles. They give rise to glassy dynamics characteristic of dimerized Mott insulators, including the sibling compound $\kappa$-(BEDT-TTF)$_2$\-Cu$_2$(CN)$_3$.
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: 840191.Pinteric_PRB_RC_2016.pdf (tekst priložen 20. Lis. 2016. u 16:37 sati)
URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.161105
https://doi.org/10.1103/PhysRevB.94.161105
Broj citata:
Altmetric:
DOI: 10.1103/PhysRevB.94.161105
URL cjelovitog rada:
Google Scholar: Anion effects on the electronic structure and electrodynamic properties of the Mott insulator kappa$-(BEDT-TT$_2Ag2(CN)3
Contrib. to CROSBI by: Silvia Tomić (stomic@ifs.hr), 20. Lis. 2016. u 16:37 sati



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