Interplay of magnetic field and trigonal distortion in the honeycomb 
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 model: Occurrence of a spin-flop phase

Luo, Qiang

doi:10.1103/physrevb.105.174435

Cited by 4 publications

(2 citation statements)

References 72 publications

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“…Beyond the canted zigzag phase, it unveils a unique feature: Excitation gaps are small in a large interval and the low-energy spectrum is very dense. Our results illustrate the signatures of a gapless region [50,75,76]. Independent of the magnetic field strength, the excitation gap is still highly dense in the QSL phase (not shown).…”

Section: Quantum Spin-1/2 Ground Statesupporting

confidence: 53%

“…It has been predicted theoretically that the exchange interactions in α-RuCl 3 can be manipulated experimentally via octahedral distortion and layer stacking. For example, the offdiagonal anisotropic exchange coupling Γ can become unusually large by applying compression [50]. The strength of the Heisenberg interaction in α-RuCl 3 compared to the anisotropic exchange interactions K and Γ can be made small enough using the circularly-polarized light [51].…”

Section: Introductionmentioning

confidence: 99%

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Ground state of the staggered Heisenberg-Γ honeycomb model in a magnetic field

Ahmadi-Yazdi,

Zare,

Mosadeq

et al. 2024

SciPost Phys. Core

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We study the ground state properties of the S=1/2 staggered Heisenberg-\GammaΓ honeycomb model under a magnetic field based on analytical and numerical methods. Our calculations show that the conventional zigzag and stripy phases are favored because of the staggered Heisenberg interaction away from the pure \GammaΓ limit. In our classical analysis, we find that the field induces a series of competing magnetic phases with relatively large unit cells in the region sandwiched between the two magnetic phases with long-range ordering. In the quantum treatment, these large magnetic unit cells are destabilized by strong quantum fluctuations that result in the stabilization of a gapless quantum spin liquid behavior. In a honeycomb \GammaΓ magnet, we disclose an intermediate-field gapless quantum spin liquid phase driven by a tilted field away from the out-of-plane direction only for a narrow region between the low-field zigzag and high-field fully polarized phases.

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Section: Quantum Spin-1/2 Ground Statesupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%