scholarly journals Quantum magnetism of perfect spin tetrahedra inCo4B6O13

2009 ◽  
Vol 80 (1) ◽  
Author(s):  
Hiroyuki Hagiwara ◽  
Hirohiko Sato ◽  
Masahiro Iwaki ◽  
Yasuo Narumi ◽  
Koichi Kindo
Keyword(s):  
Quantum Magnetism

scholarly journals Van Hove singularity in the magnon spectrum of the antiferromagnetic quantum honeycomb lattice

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
G. Sala ◽  
M. B. Stone ◽  
Binod K. Rai ◽  
A. F. May ◽  
Pontus Laurell ◽  
...  
Keyword(s):  
Disordered Systems ◽  
Inelastic Neutron Scattering ◽  
Magnetic Moments ◽  
Wave Theory ◽  
Inelastic Neutron ◽  
Quantum Spin ◽  
Honeycomb Lattice ◽  
Quantum Magnetism ◽  
Van Hove Singularity ◽  
Sharp Feature

AbstractIn quantum magnets, magnetic moments fluctuate heavily and are strongly entangled with each other, a fundamental distinction from classical magnetism. Here, with inelastic neutron scattering measurements, we probe the spin correlations of the honeycomb lattice quantum magnet YbCl3. A linear spin wave theory with a single Heisenberg interaction on the honeycomb lattice, including both transverse and longitudinal channels of the neutron response, reproduces all of the key features in the spectrum. In particular, we identify a Van Hove singularity, a clearly observable sharp feature within a continuum response. The demonstration of such a Van Hove singularity in a two-magnon continuum is important as a confirmation of broadly held notions of continua in quantum magnetism and additionally because analogous features in two-spinon continua could be used to distinguish quantum spin liquids from merely disordered systems. These results establish YbCl3 as a benchmark material for quantum magnetism on the honeycomb lattice.

Quantum Magnetism

2021 ◽  
pp. 261-280
Author(s):  
Gabriel Aeppli ◽  
Philip Stamp
Keyword(s):  
Quantum Magnetism

scholarly journals Quantum magnetism in strongly interacting one-dimensional spinor Bose systems

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Amin Dehkharghani ◽  
Artem Volosniev ◽  
Jonathan Lindgren ◽  
Jimmy Rotureau ◽  
Christian Forssén ◽  
...  
Keyword(s):  
Quantum Magnetism ◽  
One Dimensional ◽  
Strongly Interacting

Modern quantum magnetism by means of neutron scattering

2007 ◽  
Vol 8 (7-8) ◽  
pp. 717-736 ◽  
Author(s):  
Béatrice Grenier ◽  
Timothy Ziman
Keyword(s):  
Neutron Scattering ◽  
Quantum Magnetism
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