Projective symmetry group classifications of quantum spin liquids on the simple cubic, body centered cubic, and face centered cubic lattices

Sonnenschein, Jonas; Chauhan, Aishwarya; Iqbal, Yasir; Reuther, Johannes

doi:10.1103/physrevb.102.125140

Cited by 7 publications

(2 citation statements)

References 68 publications

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“…10(b)], and at = 6 order we have a broadly homogeneous distribution of intensity over the surface of the Brillouin zone with soft maxima at the W (1, 1/2, 0) points. A recent work [85] has identified two symmetric Z 2 quantum spin liquids which could potentially serve as candidate ground states, (i) a gapped Z 2 state and (ii) a Z 2 spin liquid featuring a network of symmetryprotected linelike zero modes in reciprocal space. Within a self-consistent mean-field treatment the state (ii) was found to have a lower energy with the corresponding dynamical spin structure factor exhibiting enhanced intensity at the L(1/2, 1/2, 1/2) point.…”

Section: B J1-j2 Model On the Fcc Latticementioning

confidence: 99%

“…11]. As a future study it would be worthwhile to identify the nature of the quantum paramagnetic phase by combining the functional renormalization group treatment [86] with the recently achieved projective symmetry group classification of fermionic mean-field Ansätze on the fcc lattice [85]. Within this framework [86], the spinon hopping and pairing amplitudes are subject to a renormalization group flow which takes into account dressed vertex functions instead of the bare interactions J.…”

Section: B J1-j2 Model On the Fcc Latticementioning

confidence: 99%

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Multiloop functional renormalization group approach to quantum spin systems

Kiese,

Mueller,

Iqbal

et al. 2020

Preprint

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Renormalization group methods are well-established tools for the (numerical) investigation of the low-energy properties of correlated quantum many-body systems, allowing to capture their scale-dependent nature. The functional renormalization group (FRG) allows to continuously evolve a microscopic model action to an effective low-energy action as a function of decreasing energy scales via an exact functional flow equation, which is then approximated by some truncation scheme to facilitate computation. Here we report on our transcription of a recently developed multiloop truncation approach for electronic FRG calculations to the pseudo-fermion functional renormalization group (pf-FRG) for interacting quantum spin systems. We discuss in detail the conceptual intricacies of the flow equations generated by the multiloop truncation, as well as our essential refinements to the integration scheme for the resulting integro-differential equations. To benchmark our approach we analyze geometrically frustrated Heisenberg models on the simple cubic, face-centered cubic, and pyrochlore lattice, discussing the convergence of physical observables for higher-loop calculations and comparing with exact quantum Monte Carlo results where available. Combined, these methodological refinements systematically improve the pf-FRG approach to one of the numerical tools of choice when exploring frustrated quantum magnetism in higher spatial dimensions.

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Section: B J1-j2 Model On the Fcc Latticementioning

confidence: 99%

Section: B J1-j2 Model On the Fcc Latticementioning

confidence: 99%

Multiloop functional renormalization group approach to quantum spin systems

Kiese,

Mueller,

Iqbal

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

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Growth of Ba₂CoWO₆ single crystals and their magnetic, thermodynamic and electronic properties

Hanna,

Islam,

Ritter

et al. 2024

J. Phys.: Condens. Matter

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This study explores the bulk crystal growth, structural characterization, and physical property measurements of the cubic double perovskite Ba2CoWO6 (BCWO). In BCWO, Co2+ ions form a face-centred cubic lattice with non-distorted cobalt octahedra. The compound exhibits long-range antiferromagnetic order below T N = 14 K. Magnetization data indicated a slight anisotropy along with a spin-flop transition at 10 kOe, a saturation field of 310 kOe and an ordered moment of 2.17 µB at T = 1.6 K. Heat capacity measurements indicate an effective j = 1/2 ground state configuration, resulting from the combined effects of the crystal electric field and spin-orbit interaction. Surface photovoltage analysis reveals two optical gaps in the UV–Visible region, suggesting potential applications in photocatalysis and photovoltaics. The magnetic and optical properties highlight the significant role of orbital contributions within BCWO, indicating various other potential applications.

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Projective symmetry group classification of Abrikosov fermion mean-field ansätze on the square-octagon lattice

et al. 2023

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Projective symmetry group classifications of quantum spin liquids on the simple cubic, body centered cubic, and face centered cubic lattices

Cited by 7 publications

References 68 publications

Multiloop functional renormalization group approach to quantum spin systems

Multiloop functional renormalization group approach to quantum spin systems

Growth of Ba₂CoWO₆ single crystals and their magnetic, thermodynamic and electronic properties

Projective symmetry group classification of Abrikosov fermion mean-field ansätze on the square-octagon lattice

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Projective symmetry group classifications of quantum spin liquids on the simple cubic, body centered cubic, and face centered cubic lattices

Cited by 7 publications

References 68 publications

Multiloop functional renormalization group approach to quantum spin systems

Multiloop functional renormalization group approach to quantum spin systems

Growth of Ba2CoWO6 single crystals and their magnetic, thermodynamic and electronic properties

Projective symmetry group classification of Abrikosov fermion mean-field ansätze on the square-octagon lattice

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Growth of Ba₂CoWO₆ single crystals and their magnetic, thermodynamic and electronic properties