B. Bernu

Sorbonne Université — France

Physics and Astronomy · Physical Sciences

36h-index5.6kcitations110works5.82yr avg
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Research Topics

Physics of Superconductivity and Magnetism(51), Advanced Condensed Matter Physics(36), Quantum, superfluid, helium dynamics(27), Theoretical and Computational Physics(24), Advanced Chemical Physics Studies(21)

Publications110 total

Evidence for spin liquid behavior in the frustrated three-dimensional <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>S</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math> Heisenberg garnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>NaCa</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Cu</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:msub><mml:mi>VO</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:mo>)</mml:mo></mml:mrow><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>
Physical Review Materials·2025
Derivation of free energy, entropy and specific heat for planar Ising models: Application to Archimedean lattices and their duals
SciPost Physics·2025· 2 citedOpen Access
Derivation of the free energy, entropy and specific heat for planar Ising models: Application to Archimedean lattices and their duals
arXiv (Cornell University)·2025Open Access
High temperature series expansions of S = 1/2 Heisenberg spin models: Algorithm to include the magnetic field with optimized complexity
SciPost Physics·2024· 8 citedOpen Access
High temperature series expansions of S = 1/2 Heisenberg spin models: algorithm to include the magnetic field with optimized complexity
arXiv (Cornell University)·2024Open Access
Nonlinear magnons and exchange Hamiltonians of the delafossite proximate quantum spin liquid candidates <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>KYbSe</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>NaYbSe</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>
Physical review. B./Physical review. B·2024· 25 citedOpen Access
Finite-temperature phase transitions in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>S</mml:mi><mml:mo>=</mml:mo><mml:mfrac><mml:mn>1</mml:mn><mml:mn>2</mml:mn></mml:mfrac></mml:mrow></mml:math> three-dimensional Heisenberg magnets from high-temperature series expansions
Physical review. B./Physical review. B·2023· 7 citedOpen Access
Heat conduction in herbertsmithite: Field dependence at the onset of the quantum spin liquid regime
Physical review. B./Physical review. B·2023· 9 cited
Ground-state and thermodynamic properties of the spin-$\frac{1}{2}$ Heisenberg model on the anisotropic triangular lattice
SciPost Physics·2022· 15 citedOpen Access
Specific Heat of the Kagome Antiferromagnet Herbertsmithite in High Magnetic Fields
Physical Review X·2022· 15 citedOpen Access
Report on 2112.08128v1
2022Open Access
Report on 2112.08128v1
2022Open Access
Logarithmic divergent specific heat from high-temperature series expansions: Application to the two-dimensional XXZ Heisenberg model
Physical review. B./Physical review. B·2021· 6 citedOpen Access
Emergent Potts order in the kagome <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>J</mml:mi><mml:mn>1</mml:mn></mml:msub><mml:mo>−</mml:mo><mml:msub><mml:mi>J</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math> Heisenberg model
Physical review. B./Physical review. B·2020· 26 citedOpen Access
Effect of perturbations on the kagome <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>S</mml:mi><mml:mo>=</mml:mo><mml:mfrac><mml:mn>1</mml:mn><mml:mn>2</mml:mn></mml:mfrac></mml:mrow></mml:math> antiferromagnet at all temperatures
Physical review. B./Physical review. B·2020· 32 citedOpen Access
Effect of perturbations on the kagome $S=1/2$ antiferromagnet at all temperatures
HAL (Le Centre pour la Communication Scientifique Directe)·2019· 4 citedOpen Access
Fixed-phase approximation and Diffusion Quantum Monte Carlo
arXiv (Cornell University)·2018Open Access
Periodic ground states of the electron gas in two and three dimensions
Contributions to Plasma Physics·2017· 4 citedOpen Access
Chiral Spin Liquid on a Kagome Antiferromagnet Induced by the Dzyaloshinskii-Moriya Interaction
Physical Review Letters·2017· 61 citedOpen Access
Nature of the Spin Liquid Ground State in a Breathing Kagome Compound Studied by NMR and Series Expansion
Physical Review Letters·2017· 45 citedOpen Access
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Frequent Co-authors

C. Lhuillier(16), David M. Ceperley(12), L. Pierre(9), Laura Messio(7), Grégoire Misguich(7), Markus Holzmann(7), J. P. Hansen(6), P. Lecheminant(4), C. Waldtmann(4), Carlo Pierleoni(4), Y. Hiwatari(4), F. Delyon(4), Philippe Sindzingre(3), F. Bert(3), P. Mendels(3), E. Kermarrec(2), R. H. Colman(2), A. S. Wills(2), W. R. Magro(2), G. Pastore(2)