Three-state Potts nematic order in stacked frustrated spin models with SO(3) symmetry
Journal Article
·
· Physical Review. B
- Ames Lab., and Iowa State Univ., Ames, IA (United States)
Here, we propose stacked two-dimensional lattice designs of frustrated and SO(3) symmetric spin models consisting of antiferromagnetic (AF) triangular and ferromagnetic (FM) sixfold symmetric sublattices that realize emergent $$\mathbb{Z}_{3}$$ Potts nematic order. Considering bilinear-biquadratic spin interactions, our models describe an SO(3)-symmetric triangular lattice AF subject to a fluctuating magnetization arising from the FM coupled sublattice. We focus on the classical AFM-FM windmill model and map out the zero- and finite-temperature phase diagram using Monte Carlo simulations and analytical calculations. We discover a state with composite Potts nematic order above the ferrimagnetic three-sublattice up-up-down ground state and relate it to Potts phases in SO(3)-broken Heisenberg and Ising AFMs in external magnetic fields. Finally, we show that the biquadratic exchange in our model is automatically induced by thermal and quantum fluctuations in the purely bilinear Heisenberg model, easing the requirements for realizing these lattice designs experimentally.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
- Grant/Contract Number:
- AC02-07CH11358
- OSTI ID:
- 1972800
- Report Number(s):
- IS-J 11,056
- Journal Information:
- Physical Review. B, Journal Name: Physical Review. B Journal Issue: 18 Vol. 107; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fragility of the nematic spin liquid induced by diagonal couplings in the square-lattice SU(3) model
Broken mirror symmetry, incommensurate spin correlations, and B2g nematic order in iron pnictides
Journal Article
·
Thu Nov 18 23:00:00 EST 2021
· Physical Review B
·
OSTI ID:1836413
Broken mirror symmetry, incommensurate spin correlations, and B2g nematic order in iron pnictides
Journal Article
·
Mon Sep 16 00:00:00 EDT 2019
· Physical Review B
·
OSTI ID:1612873