Noncoplanar orders and quantum disordered states in maple-leaf antiferromagnets

M Gembé, L Gresista, HJ Schmidt, C Hickey, Y Iqbal… - Physical Review B, 2024 - APS
A promising route towards the realization of chiral spin liquids is the quantum melting of
classically noncoplanar spin states via quantum fluctuations. In the classical realm, such …

Competing gauge fields and entropically driven spin liquid to spin liquid transition in non-Kramers pyrochlores

D Lozano-Gómez, V Noculak, J Oitmaa… - Proceedings of the …, 2024 - pnas.org
Gauge theories are powerful theoretical physics tools that allow complex phenomena to be
reduced to simple principles and are used in both high-energy and condensed matter …

Candidate quantum disordered intermediate phase in the Heisenberg antiferromagnet on the maple-leaf lattice

L Gresista, C Hickey, S Trebst, Y Iqbal - Physical Review B, 2023 - APS
Quantum antiferromagnets on geometrically frustrated lattices have long attracted interest for
the formation of quantum disordered states and the possible emergence of quantum spin …

Dynamics of K2Ni2(SO4)3 governed by proximity to a 3D spin liquid model

MG Gonzalez, V Noculak, A Sharma, V Favre… - Nature …, 2024 - nature.com
Quantum spin liquids (QSLs) have become a key area of research in magnetism due to their
remarkable properties, such as long-range entanglement, fractional excitations, and …

Quantum paramagnetism in the decorated square-kagome antiferromagnet

N Niggemann, N Astrakhantsev, A Ralko, F Ferrari… - Physical Review B, 2023 - APS
The square-kagome lattice Heisenberg antiferromagnet is a highly frustrated Hamiltonian
whose material realizations have been scarce. We theoretically investigate the recently …

Candidate quantum spin liquids on the maple-leaf lattice

J Sonnenschein, A Maity, C Liu, R Thomale, F Ferrari… - Physical Review B, 2024 - APS
Motivated by recent numerical studies reporting putative quantum paramagnetic behavior in
spin-1/2 Heisenberg models on the maple-leaf lattice, we classify Abrikosov fermion mean …

Phase diagram of the Heisenberg model on the maple leaf lattice: Neural networks and density matrix renormalization group

J Beck, J Bodky, J Motruk, T Müller, R Thomale… - Physical Review B, 2024 - APS
We microscopically analyze the nearest-neighbor Heisenberg model on the maple leaf
lattice through neural quantum state (NQS) and infinite density matrix renormalization group …

Phase diagram of the quantum Heisenberg model for arbitrary spin

A Rückriegel, D Tarasevych, P Kopietz - Physical Review B, 2024 - APS
We use the spin functional renormalization group to investigate the J 1-J 2 quantum
Heisenberg model on a square lattice. By incorporating sum rules associated with the fixed …

Temperature flow in pseudo-Majorana functional renormalization for quantum spins

B Schneider, J Reuther, MG Gonzalez, B Sbierski… - Physical Review B, 2024 - APS
We implement the temperature flow scheme first proposed by Honerkamp and Salmhofer
[Phys. Rev. B 64, 184516 (2001) 0163-1829 10.1103/PhysRevB. 64.184516] into the …

Magnetism in the two-dimensional dipolar XY model

B Sbierski, M Bintz, S Chatterjee, M Schuler, NY Yao… - Physical Review B, 2024 - APS
Motivated by a recent experiment on a square-lattice Rydberg atom array realizing a long-
range dipolar XY model [C. Chen, Nature (London) 616, 691 (2023) 10.1038/s41586-023 …