Discrete breathers—advances in theory and applications
S Flach, AV Gorbach - Physics Reports, 2008 - Elsevier
Nonlinear classical Hamiltonian lattices exhibit generic solutions—discrete breathers. They
are time-periodic and (typically exponentially) localized in space. The lattices have discrete …
are time-periodic and (typically exponentially) localized in space. The lattices have discrete …
Bose–Einstein condensation in magnetic insulators
T Giamarchi, C Rüegg, O Tchernyshyov - Nature Physics, 2008 - nature.com
Abstract The Bose–Einstein condensate (BEC) is a fascinating state of matter predicted to
occur for particles obeying Bose statistics. Although the BEC has been observed with …
occur for particles obeying Bose statistics. Although the BEC has been observed with …
[HTML][HTML] Haldane topological spin-1 chains in a planar metal-organic framework
Haldane topological materials contain unique antiferromagnetic chains with symmetry-
protected energy gaps. Such materials have potential applications in spintronics and future …
protected energy gaps. Such materials have potential applications in spintronics and future …
Bose-Einstein condensation in quantum magnets
This article reviews experimental and theoretical work on Bose-Einstein condensation in
quantum magnets. These magnets are natural realizations of gases of interacting bosons …
quantum magnets. These magnets are natural realizations of gases of interacting bosons …
Novel Magnetism of Ions in the Double Perovskite
We synthesize and study single crystals of a new double-perovskite Sr 2 YIrO 6. Despite two
strongly unfavorable conditions for magnetic order, namely, pentavalent Ir 5+(5 d 4) ions …
strongly unfavorable conditions for magnetic order, namely, pentavalent Ir 5+(5 d 4) ions …
Bose glass and Mott glass of quasiparticles in a doped quantum magnet
The low-temperature states of bosonic fluids exhibit fundamental quantum effects at the
macroscopic scale: the best-known examples are Bose–Einstein condensation and …
macroscopic scale: the best-known examples are Bose–Einstein condensation and …
[HTML][HTML] Quadrupolar magnetic excitations in an isotropic spin-1 antiferromagnet
The microscopic origins of emergent behaviours in condensed matter systems are encoded
in their excitations. In ordinary magnetic materials, single spin-flips give rise to collective …
in their excitations. In ordinary magnetic materials, single spin-flips give rise to collective …
Bridging lattice-scale physics and continuum field theory with quantum Monte Carlo simulations
We discuss designer Hamiltonians—lattice models tailored to be free from sign problems
(“de-signed”) when simulated with quantum Monte Carlo (QMC) methods but which still host …
(“de-signed”) when simulated with quantum Monte Carlo (QMC) methods but which still host …
Direct Determination of Exchange Parameters in and : High-Field Electron-Spin-Resonance Studies
SA Zvyagin, D Kamenskyi, M Ozerov, J Wosnitza… - Physical review …, 2014 - APS
Spin-1/2 Heisenberg antiferromagnets Cs 2 CuCl 4 and Cs 2 CuBr 4 with distorted triangular-
lattice structures are studied by means of electron spin resonance spectroscopy in magnetic …
lattice structures are studied by means of electron spin resonance spectroscopy in magnetic …
[HTML][HTML] Dirty-boson physics with magnetic insulators
A Zheludev, T Roscilde - Comptes Rendus Physique, 2013 - Elsevier
We review recent theoretical and experimental efforts aimed at the investigation of the
physics of interacting disordered bosons (so-called dirty bosons) in the context of quantum …
physics of interacting disordered bosons (so-called dirty bosons) in the context of quantum …