Milestones of low-D quantum magnetism

A Vasiliev, O Volkova, E Zvereva, M Markina - npj Quantum Materials, 2018 - nature.com
There is a long time gap between the formulation of the basic theory of low-dimensional (low-
D) magnetism as advanced by Ising, Heisenberg and Bethe and its experimental …

Strong electronic correlations in superconducting organic charge transfer salts

BJ Powell, RH McKenzie - Journal of Physics: Condensed Matter, 2006 - iopscience.iop.org
We review the role of strong electronic correlations in quasi-two-dimensional organic charge
transfer salts such as (BEDT-TTF) 2 X,(BETS) 2 Y, and β'-[Pd (dmit) 2] 2 Z. We begin by …

Competing orders, nonlinear sigma models, and topological terms in quantum magnets

T Senthil, MPA Fisher - Physical Review B—Condensed Matter and Materials …, 2006 - APS
A number of examples have demonstrated the failure of the Landau-Ginzburg-Wilson (LGW)
paradigm in describing the competing phases and phase transitions of two-dimensional …

Spinons and triplons in spatially anisotropic frustrated antiferromagnets

M Kohno, OA Starykh, L Balents - Nature Physics, 2007 - nature.com
The search for elementary excitations with fractional quantum numbers is a central
challenge in modern condensed-matter physics. It has long been speculated that two …

Ground state phases of the spin-1/2 Heisenberg antiferromagnet on the square lattice: A high-order coupled cluster treatment

R Darradi, O Derzhko, R Zinke, J Schulenburg… - Physical Review B …, 2008 - APS
Using the coupled cluster method for high orders of approximation and complementary
exact diagonalization studies we investigate the ground state properties of the spin-1/2 J 1–J …

frustrated two-dimensional Heisenberg model: Random phase approximation and functional renormalization group

J Reuther, P Wölfle - Physical Review B—Condensed Matter and Materials …, 2010 - APS
We study the ground-state properties of the two-dimensional spin-1/2 J 1-J 2 Heisenberg
model on a square lattice, within diagrammatic approximations using an auxiliary-fermion …

Ground-state phase diagram of a spin- frustrated ferromagnetic XXZ chain: Haldane dimer phase and gapped/gapless chiral phases

S Furukawa, M Sato, S Onoda, A Furusaki - Physical Review B—Condensed …, 2012 - APS
The ground-state phase diagram of a spin-1 2 XXZ chain with competing ferromagnetic
nearest-neighbor (J 1< 0) and antiferromagnetic second-neighbor (J 2> 0) exchange …

Ordering in spatially anisotropic triangular antiferromagnets

OA Starykh, L Balents - Physical review letters, 2007 - APS
We investigate the phase diagram of the anisotropic spin-1/2 triangular lattice
antiferromagnet, with interchain diagonal exchange J′ much weaker than the intrachain …

Refining the Spin Hamiltonian in the Spin- Kagome Lattice Antiferromagnet <?format ?> Using Single Crystals

T Han, S Chu, YS Lee - Physical review letters, 2012 - APS
We report thermodynamic measurements of the S= 1 2 kagome lattice antiferromagnet ZnCu
3 (OH) 6 Cl 2, a promising candidate system with a spin-liquid ground state. Using single …

Extension of the spin-1 2 frustrated square lattice model: The case of layered vanadium phosphates

AA Tsirlin, H Rosner - Physical Review B—Condensed Matter and Materials …, 2009 - APS
We study the influence of the spin lattice distortion on the properties of frustrated magnetic
systems and consider the applicability of the spin-1/2 frustrated square lattice model to …