Get started
Work

Frustrated kagome-lattice bilayer quantum Heisenberg antiferromagnet

Year: 2025
Type: article
Abstract: We consider the S = 1 / 2 antiferromagnetic Heisenberg model on a frustrated kagome-lattice bilayer with strong nearest-neighbor interlayer coupling and examine its low-temperature magnetothermodynamics using a mapping onto a rhombi gas on the kagome lattice. Besides, we use finite-size numerics to illustrate the validity of the classical lattice-gas description. Among our findings there are (i) the absence of an order-disorder phase transition and (ii) the sensitivity of the specific heat at low temperatures to the shape of the system just below the saturation magnetic field even in the thermodynamic limit.
DOI: 10.1103/1rzb-s69p
Authors: Dmytro Yaremchuk, Taras Hutak, Vasyl Baliha, Taras Krokhmalskii, Oleg Derzhko, Jürgen Schnack, Johannes Richter
Institutions: National Academy of Sciences of Ukraine, Yukhnovskii Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, Lviv Polytechnic National University, Lviv University, Bielefeld University, Otto-von-Guericke-Universität Magdeburg
Language: English
Open Access status: hybrid
OpenAlex ID: W4411338757
FWCI: 1.616
Cites: 48
Cited by: 5
Related to: 10