Molecular quantum materials: electronic phases and charge dynamics in two-dimensional organic solids
This review provides a perspective on recent developments and their implications for our
understanding of novel quantum phenomena in the physics of two-dimensional organic …
understanding of novel quantum phenomena in the physics of two-dimensional organic …
Thirty-Year Anniversary of κ-(BEDT-TTF)2Cu2(CN)3: Reconciling the Spin Gap in a Spin-Liquid Candidate
A Pustogow - Solids, 2022 - mdpi.com
In 1991 the layered organic compound κ-(BEDT-TTF) 2 Cu 2 (CN) 3 with a triangular lattice
was synthesized for the first time. Although, originally, the focus was on the superconducting …
was synthesized for the first time. Although, originally, the focus was on the superconducting …
Gapped magnetic ground state in quantum spin liquid candidate κ-(BEDT-TTF)2Cu2(CN)3
Geometrical frustration, quantum entanglement, and disorder may prevent long-range
ordering of localized spins with strong exchange interactions, resulting in an exotic state of …
ordering of localized spins with strong exchange interactions, resulting in an exotic state of …
Gapless Quantum Spin Liquid in an Organic Spin-1/2 Triangular-Lattice
We report the results of SQUID and torque magnetometry of an organic spin-1/2 triangular-
lattice κ-H 3 (Cat-EDT-TTF) 2. Despite antiferromagnetic exchange coupling at 80–100 K …
lattice κ-H 3 (Cat-EDT-TTF) 2. Despite antiferromagnetic exchange coupling at 80–100 K …
Quantum spin liquids unveil the genuine Mott state
A Pustogow, M Bories, A Löhle, R Rösslhuber… - Nature materials, 2018 - nature.com
The localization of charge carriers by electronic repulsion was suggested by Mott in the
1930s to explain the insulating state observed in supposedly metallic NiO. The Mott metal …
1930s to explain the insulating state observed in supposedly metallic NiO. The Mott metal …
Absence of charge order in the dimerized -phase BEDT-TTF salts
K Sedlmeier, S Elsässer, D Neubauer, R Beyer… - Physical Review B …, 2012 - APS
Utilizing infrared vibrational spectroscopy we have investigated dimerized two-dimensional
organic salts in order to search for possible charge redistribution that might constitute …
organic salts in order to search for possible charge redistribution that might constitute …
Importance of spin-orbit coupling in layered organic salts
We investigate the spin-orbit coupling (SOC) effects in α-and κ-phase BEDT-TTF and BEDT-
TSF organic salts. Contrary to the assumption that SOC in organics is negligible due to light …
TSF organic salts. Contrary to the assumption that SOC in organics is negligible due to light …
Donor–anion interactions in quarter-filled low-dimensional organic conductors
Anions have often been considered to act essentially as electron donors or acceptors in
molecular conductors. However there is now growing evidence that they play an essential …
molecular conductors. However there is now growing evidence that they play an essential …
Anisotropic charge dynamics in the quantum spin-liquid candidate
We have in detail characterized the anisotropic charge response of the dimer Mott insulator
κ-(BEDT-TTF) 2 Cu 2 (CN) 3 by dc conductivity, Hall effect, and dielectric spectroscopy. At …
κ-(BEDT-TTF) 2 Cu 2 (CN) 3 by dc conductivity, Hall effect, and dielectric spectroscopy. At …
Evaluating model parameters of the - and -type Mott insulating organic solids
We elucidate the model parameters for a series of organic crystals called κ-and β′-type
salts by constructing the maximally localized Wannier orbitals which reproduce the bulk …
salts by constructing the maximally localized Wannier orbitals which reproduce the bulk …