Search Results - "Honecker, Andreas"
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Breakdown of magnons in a strongly spin-orbital coupled magnet
Published in Nature communications (27-10-2017)“…The description of quantized collective excitations stands as a landmark in the quantum theory of condensed matter. A prominent example occurs in conventional…”
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Location of the Potts-critical end point in the frustrated Ising model on the square lattice
Published in Physical review. B, Condensed matter and materials physics (11-10-2012)“…We report on Monte Carlo simulations for the two-dimensional frustrated J sub(1)-J sub(2) Ising model on the square lattice. Recent analysis has shown that for…”
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The percolating cluster is invisible to image recognition with deep learning
Published in New journal of physics (01-11-2023)“…We study the two-dimensional site-percolation model on a square lattice. In this paradigmatic model, sites are randomly occupied with probability p ; a…”
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Thermodynamic properties of the Shastry-Sutherland model throughout the dimer-product phase
Published in Physical review research (21-10-2019)“…The thermodynamic properties of the Shastry-Sutherland model have posed one of the longest-lasting conundrums in frustrated quantum magnetism. Over a wide…”
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Dynamical signatures of edge-state magnetism on graphene nanoribbons
Published in Physical review letters (31-05-2011)“…We investigate the edge-state magnetism of graphene nanoribbons using projective quantum Monte Carlo simulations and a self-consistent mean-field approximation…”
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6
Matrix product state formulation of frequency-space dynamics at finite temperatures
Published in Physical review. B, Condensed matter and materials physics (21-08-2014)“…We present a flexible density-matrix renormalization group approach to calculate finite-temperature spectral functions of one-dimensional strongly correlated…”
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7
Numerical Interchain Mean-Field Theory for the Specific Heat of the Bimetallic Ferromagnetically Coupled Chain Compound MnNi(NO2)4(en)2 (en = Ethylenediamine)
Published in Molecules (Basel, Switzerland) (03-10-2022)“…We present a detailed study of the field-dependent specific heat of the bimetallic ferromagnetically coupled chain compound MnNi(NO2)4(en)2, en =…”
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Magnetism of magic-angle twisted bilayer graphene
Published in SciPost physics (01-10-2021)“…We investigate magnetic instabilities in charge-neutral twisted bilayer graphene close to so-called ``magic angles’’ using a combination of real-space…”
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Quantum Monte Carlo simulations in the trimer basis: first-order transitions and thermal critical points in frustrated trilayer magnets
Published in SciPost physics (01-02-2022)“…The phase diagrams of highly frustrated quantum spin systems can exhibit first-order quantum phase transitions and thermal critical points even in the absence…”
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Multistep approach to microscopic models for frustrated quantum magnets: the case of the natural mineral azurite
Published in Physical review letters (23-05-2011)“…The natural mineral azurite Cu(3)(CO(3))(2)(OH)(2) is a frustrated magnet displaying unusual and controversially discussed magnetic behavior. Motivated by the…”
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Efficient Quantum Monte Carlo simulations of highly frustrated magnets: the frustrated spin-1/2 ladder
Published in SciPost physics (01-07-2017)“…Quantum Monte Carlo simulations provide one of the more powerful and versatile numerical approaches to condensed matter systems. However, their application to…”
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Magnetocaloric effect and magnetic cooling near a field-induced quantum-critical point
Published in Proceedings of the National Academy of Sciences - PNAS (26-04-2011)“…The presence of a quantum-critical point (QCP) can significantly affect the thermodynamic properties of a material at finite temperatures T. This is reflected,…”
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Low-temperature thermodynamics for a flat-band ferromagnet: Rigorous versus numerical results
Published in Physical review. B, Condensed matter and materials physics (06-12-2007)Get full text
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Plant, space and time - linked together in an integrative and scalable data management system for phenomic approaches in agronomic field trials
Published in Plant methods (21-04-2020)“…To ensure further genetic gain, genomic approaches in plant breeding rely on precise phenotypic data, describing plant structure, function and performance. A…”
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Exact low-temperature properties of a class of highly frustrated Hubbard models
Published in Physical review. B, Condensed matter and materials physics (02-02-2009)Get full text
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Quantum disordered ground state for hard-core bosons on the frustrated square lattice
Published in Physical review. B, Condensed matter and materials physics (31-05-2011)Get full text
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Magnetothermal properties of the Heisenberg-Ising orthogonal-dimer chain with triangular X X Z clusters
Published in Physical review. B, Condensed matter and materials physics (09-08-2012)Get full text
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19
Magnon Crystallization in the Kagome Lattice Antiferromagnet
Published in Physical review letters (11-09-2020)“…We present numerical evidence for the crystallization of magnons below the saturation field at nonzero temperatures for the highly frustrated spin-half kagome…”
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Numerical study of magnetization plateaus in the spin- 1 2 kagome Heisenberg antiferromagnet
Published in Physical review. B, Condensed matter and materials physics (18-10-2013)Get full text
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