scholarly journals Instabilities of spin-liquid states in a quantum kagome antiferromagnet

2016 ◽  
Vol 93 (6) ◽  
Author(s):  
M. Gomilšek ◽  
M. Klanjšek ◽  
M. Pregelj ◽  
F. C. Coomer ◽  
H. Luetkens ◽  
...  
Keyword(s):  
Spin Liquid ◽  
Liquid States

scholarly journals Spin-Liquid States in a Copper-Based Material: The Mysterious Quantum Phase CuNCN

2015 ◽  
Vol 4 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Andrei L. Tchougréeff ◽  
Richard Dronskowski
Keyword(s):  
Quantum Phase ◽  
Spin Liquid ◽  
Liquid States

scholarly journals Quantum-spin-liquid states in the two-dimensional kagome antiferromagnets ZnxCu4−x(OD)6Cl2

2007 ◽  
Vol 6 (11) ◽  
pp. 853-857 ◽  
Author(s):  
S.-H. Lee ◽  
H. Kikuchi ◽  
Y. Qiu ◽  
B. Lake ◽  
Q. Huang ◽  
...  
Keyword(s):  
Quantum Spin ◽  
Spin Liquid ◽  
Two Dimensional ◽  
Liquid States ◽  
Quantum Spin Liquid

Magnetic field influence on the Néel, dimer, and spin-liquid states of the low-dimensional antiferromagnetsNiTa2O6andCoSb2O6

2014 ◽  
Vol 90 (22) ◽  
Author(s):  
A. B. Christian ◽  
S. H. Masunaga ◽  
A. T. Schye ◽  
A. Rebello ◽  
J. J. Neumeier ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Spin Liquid ◽  
Low Dimensional ◽  
Liquid States ◽  
Field Influence

scholarly journals Competing spin-liquid states in the spin-12Heisenberg model on the triangular lattice

2015 ◽  
Vol 92 (14) ◽  
Author(s):  
Wen-Jun Hu ◽  
Shou-Shu Gong ◽  
Wei Zhu ◽  
D. N. Sheng
Keyword(s):  
Triangular Lattice ◽  
Spin Liquid ◽  
Liquid States

scholarly journals Quantum phases of the frustrated XY models on the honeycomb lattice

2014 ◽  
Vol 28 (31) ◽  
pp. 1430016 ◽  
Author(s):  
Zhenyue Zhu ◽  
Steven R. White
Keyword(s):  
Renormalization Group ◽  
Xy Model ◽  
Honeycomb Lattice ◽  
Spin Liquid ◽  
Density Matrix Renormalization Group ◽  
Quantum Phases ◽  
The Third ◽  
Density Matrix Renormalization ◽  
Liquid Phases ◽  
Liquid States

Searching for spin-liquid states has long been attracting both experimentalists and theorists. In this paper, we review recent density matrix renormalization group studies of the spin-½ XY model on the honeycomb lattice, with first-neighbor (J1 = 1) and frustrating second-neighbor (J2 > 0) interactions. For the intermediate frustration regime 0.22 ≲ J2 ≲ 0.36, there exists a surprising antiferromagnetic Ising phase, with ordered moments pointing along the z-axis, despite the absence of any SzSz interactions in the Hamiltonian. Surrounding this phase as a function of J2 are antiferromagnetic phases with the moments pointing in the xy-plane for small J2 and a close competition between an xy-plane magnetic collinear phase and a dimer phase for large values of J2. No spin-liquid phases was found in the XY model even with the third-neighbor (J3 > 0) interactions.

scholarly journals Quantum spin-liquid states in an organic magnetic layer and molecular rotor hybrid

2020 ◽  
Vol 117 (47) ◽  
pp. 29555-29560
Author(s):  
Péter Szirmai ◽  
Cécile Mézière ◽  
Guillaume Bastien ◽  
Pawel Wzietek ◽  
Patrick Batail ◽  
...  
Keyword(s):  
Magnetic Measurements ◽  
Magnetic Layer ◽  
Quantum Spin ◽  
Spin Liquid ◽  
Organic Crystals ◽  
Spin Liquids ◽  
Molecular Rotor ◽  
Low Dimensionality ◽  
Liquid States ◽  
Quantum Spin Liquid

The exotic properties of quantum spin liquids (QSLs) have continually been of interest since Anderson’s 1973 ground-breaking idea. Geometrical frustration, quantum fluctuations, and low dimensionality are the most often evoked material’s characteristics that favor the long-range fluctuating spin state without freezing into an ordered magnet or a spin glass at low temperatures. Among the few known QSL candidates, organic crystals have the advantage of having rich chemistry capable of finely tuning their microscopic parameters. Here, we demonstrate the emergence of a QSL state in [EDT-TTF-CONH2]2+[BABCO−] (EDT-BCO), where the EDT molecules with spin-1/2 on a triangular lattice form layers which are separated by a sublattice of BCO molecular rotors. By several magnetic measurements, we show that the subtle random potential of frozen BCO Brownian rotors suppresses magnetic order down to the lowest temperatures. Our study identifies the relevance of disorder in the stabilization of QSLs.

CHIRAL SPIN LIQUID STATES IN 3-SPACE DIMENSIONS AND TOPOLOGICAL ASPECTS OF MONOPOLE SUPERCONDUCTIVITY

1993 ◽  
Vol 07 (13n14) ◽  
pp. 913-919
Author(s):  
B. BASU ◽  
P. BANDYOPADHYAY
Keyword(s):  
Magnetic Flux ◽  
Gauge Field ◽  
Spin System ◽  
Berry Phase ◽  
Gauge Fields ◽  
Spin Liquid ◽  
Abelian Gauge ◽  
Heisenberg Spin ◽  
Pair Condensation ◽  
Liquid States

We have studied here the topological aspects of monopole superconductivity in 3+1 dimensions. It is pointed out that Heisenberg spin system may be associated with non-Abelian gauge fields. When the spin and charge become separated, spinons and holons emerge and holons interacting with such a gauge field associate a magnetic flux giving rise to nonzero Berry phase and causes the existence of chiral spin liquid. This also suggests that these holons are much heavier than their free counterpart and the pair of such holons forms a bosonic state respecting rotational invariance. Superconductivity arises out of this pair condensation.

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