This is an introductory review of the physics of quantum spin liquid states. Quantum
magnetism is a rapidly evolving field, and recent developments reveal that the ground states …

We review ground states and excitations of a quantum antiferromagnet on triangular and
other frustrated lattices. We pay special attention to the combined effects of magnetic field h …

Motivated by experimental studies that have found signatures of a quantum spin liquid
phase in organic crystals whose structure is well described by the two-dimensional …

H 1 NMR and static susceptibility measurements have been performed in an organic Mott
insulator with a nearly isotropic triangular lattice, κ-(BEDT-TTF) 2 C u 2 (CN) 3, which is a …

The properties of organic conductors are often tuned by the application of chemical or
external pressure, which change orbital overlaps and electronic bandwidths while leaving …

In two-dimensional triangular lattices, geometric frustration prohibits the formation of
ordering even at the lowest temperatures, and therefore a liquid-like ground state is …

We review the interplay of frustration and strong electronic correlations in quasi-two-
dimensional organic charge transfer salts, such as (BEDT-TTF) 2 X and Et n Me 4− n Pn [Pd …

We study triangular lattice spin-1∕ 2 system with antiferromagnetic Heisenberg and ring
exchanges using variational approach focusing on possible realization of spin-liquid states …

We introduce the development of conductive organic molecular assemblies including
organic metals, superconductors, single component conductors, conductive films, and …

The pressure-temperature phase diagram of the organic Mott insulator κ-(ET) 2 Cu 2 (CN) 3,
a model system of the spin liquid on triangular lattice, has been investigated by H 1 NMR …