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Titel:

Dynamical signatures of symmetry-broken and liquid phases in an S = 12 Heisenberg antiferromagnet on the triangular lattice

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Drescher, Markus; Vanderstraeten, Laurens; Moessner, Roderich; Pollmann, Frank
Abstract:
We present the dynamical spin structure factor of the antiferromagnetic spin-12 J1−J2 Heisenberg model on a triangular lattice obtained from large-scale matrix-product state simulations. The high frustration due to the combination of antiferromagnetic nearest- and next-nearest-neighbor interactions yields a rich phase diagram. We resolve the low-energy excitations both in the 120∘ ordered phase and in the putative spin-liquid phase at J2/J1=0.125. In the ordered phase, we observe an avoided deca...     »
Zeitschriftentitel:
Physical Review B 2023-12
Jahr:
2023
Band / Volume:
108
Heft / Issue:
22
Volltext / DOI:
doi:10.1103/physrevb.108.l220401
Verlag / Institution:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Publikationsdatum:
05.12.2023
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