Biaoyan Hu
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Biaoyan Hu has a total of 50 co-authors. Here are the top co-authors by number of shared publications:
- Yuan Li
International Center for Quantum Materials, School of Physics, Peking University, Beijing, China
3 shared publications - Alexander I. Kolesnikov
Oak Ridge National Laboratory
2 shared publications - Andrey Podlesnyak
Oak Ridge National Laboratory
2 shared publications - Igor A. Zaliznyak
Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, USA
2 shared publications - John M. Tranquada
Condensed Matter Physics and Materials Science Division, Brookhaven National Laboratory, Upton, USA
2 shared publications - Kazuki Iida
Comprehensive Research Organization for Science and Society (CROSS)
2 shared publications
Latest Publications
- 8 October 2026
- Published by American Physical Society (APS) in Physical Review B
- Vol. 114 (19) , 194406
Crystal-field symmetry constraints in layered honeycomb ErBr 3
Crystal-field symmetry restricts the ground-state Kramers doublet of ${\mathrm{ErBr}}_{3}$ to one of two classes. We show that the compressed octahedral environment selects the class with $\ensuremath{\langle}{\ensuremath{\psi}}_{\ifmmode\pm\else\textpm\fi{}}|{J}^{\ifmmode\pm\else\textpm\fi{}}|{\ensuremath{\psi}}_{\ensuremath{\mp}}\ensuremath{\rangle}=0$, suppressing the lowest-order ${J}^{\ifmmode\pm\else\textpm\fi{}}$-mediated exchange. Thermodynamic measurements reveal two zero-field anomalies at 0.375 and 0.200 K. Under an in-plane magnetic field, the thermodynamic response separates into a phase boundary and a broader crossover line. Inelastic neutron scattering measurements at 2 K reveal no well-defined low-energy dispersive magnetic modes. These results connect the ground-state symmetry with the field-dependent thermodynamic response of ${\mathrm{ErBr}}_{3}$, providing a microscopic starting point for understanding its low-energy magnetic behavior.- 8 October 2026
- Published by American Physical Society (APS) in Physical Review B
- Vol. 114 (19) , 194406
Crystal-field symmetry constraints in layered honeycomb ErBr 3
Crystal-field symmetry restricts the ground-state Kramers doublet of ${\mathrm{ErBr}}_{3}$ to one of two classes. We show that the compressed octahedral environment selects the class with $\ensuremath{\langle}{\ensuremath{\psi}}_{\ifmmode\pm\else\textpm\fi{}}|{J}^{\ifmmode\pm\else\textpm\fi{}}|{\ensuremath{\psi}}_{\ensuremath{\mp}}\ensuremath{\rangle}=0$, suppressing the lowest-order ${J}^{\ifmmode\pm\else\textpm\fi{}}$-mediated exchange. Thermodynamic measurements reveal two zero-field anomalies at 0.375 and 0.200 K. Under an in-plane magnetic field, the thermodynamic response separates into a phase boundary and a broader crossover line. Inelastic neutron scattering measurements at 2 K reveal no well-defined low-energy dispersive magnetic modes. These results connect the ground-state symmetry with the field-dependent thermodynamic response of ${\mathrm{ErBr}}_{3}$, providing a microscopic starting point for understanding its low-energy magnetic behavior.- 20 February 2026
- Published by American Physical Society (APS) in Physical Review B
- Vol. 113 (6)
Emergent quasi-one-dimensional antiferromagnetism in the distorted kagome magnet CePtPb
- 20 February 2026
- Published by American Physical Society (APS) in Physical Review B
- Vol. 113 (6)
Emergent quasi-one-dimensional antiferromagnetism in the distorted kagome magnet CePtPb
- 20 September 2024
- Published by American Physical Society (APS) in Physical Review B
- Vol. 110 (11)
Absence of magnetoelastic deformation in the spin-chain compound- 20 September 2024
- Published by American Physical Society (APS) in Physical Review B
- Vol. 110 (11)
Absence of magnetoelastic deformation in the spin-chain compound- 6 January 2023
- Published by American Association for the Advancement of Science (AAAS) in Science Advances
- Vol. 9 (1) , eadd5239
Magnetic molecular orbitals in MnSi
A large body of knowledge about magnetism is attained from models of interacting spins, which usually reside on magnetic ions. Proposals beyond the ionic picture are uncommon and seldom verified by direct observations in conjunction with microscopic theory. Here, using inelastic neutron scattering to study the itinerant near-ferromagnet MnSi, we find that the system’s fundamental magnetic units are interconnected, extended molecular orbitals consisting of three Mn atoms each rather than individual Mn atoms. This result is further corroborated by magnetic Wannier orbitals obtained by ab initio calculations. It contrasts the ionic picture with a concrete example and presents an unexplored regime of the spin waves where the wavelength is comparable to the spatial extent of the molecular orbitals. Our discovery brings important insights into not only the magnetism of MnSi but also a broad range of magnetic quantum materials where structural symmetry, electron itinerancy, and correlations act in concert.
- 6 January 2023
- Published by American Association for the Advancement of Science (AAAS) in Science Advances
- Vol. 9 (1) , eadd5239
Magnetic molecular orbitals in MnSi
A large body of knowledge about magnetism is attained from models of interacting spins, which usually reside on magnetic ions. Proposals beyond the ionic picture are uncommon and seldom verified by direct observations in conjunction with microscopic theory. Here, using inelastic neutron scattering to study the itinerant near-ferromagnet MnSi, we find that the system’s fundamental magnetic units are interconnected, extended molecular orbitals consisting of three Mn atoms each rather than individual Mn atoms. This result is further corroborated by magnetic Wannier orbitals obtained by ab initio calculations. It contrasts the ionic picture with a concrete example and presents an unexplored regime of the spin waves where the wavelength is comparable to the spatial extent of the molecular orbitals. Our discovery brings important insights into not only the magnetism of MnSi but also a broad range of magnetic quantum materials where structural symmetry, electron itinerancy, and correlations act in concert.
- Open Access
- 5 December 2022
- Published by American Physical Society (APS) in Physical Review B
- Vol. 106 (22) , 224304
Chern numbers of topological phonon band crossing determined with inelastic neutron scattering
Topological invariants in the band structure, such as Chern numbers, are important for the understanding and classification of the topological properties of matter and dictate the occurrence of exotic behaviors, yet their direct spectroscopic determination has been largely limited to electronic bands. Here, we use inelastic neutron scattering in conjunction with ab initio calculations to identify a variety of topological phonon band crossings in MnSi and CoSi single crystals. We find a distinct relation between the Chern numbers of a band-crossing node and the scattering intensity modulation in momentum space around the node. Given sufficiently high resolution, our method can be used to determine arbitrarily large Chern numbers of topological phonon band-crossing nodes.
- 5 December 2022
- Published by American Physical Society (APS) in Physical Review B
- Vol. 106 (22) , 224304
Open AccessChern numbers of topological phonon band crossing determined with inelastic neutron scattering
Topological invariants in the band structure, such as Chern numbers, are important for the understanding and classification of the topological properties of matter and dictate the occurrence of exotic behaviors, yet their direct spectroscopic determination has been largely limited to electronic bands. Here, we use inelastic neutron scattering in conjunction with ab initio calculations to identify a variety of topological phonon band crossings in MnSi and CoSi single crystals. We find a distinct relation between the Chern numbers of a band-crossing node and the scattering intensity modulation in momentum space around the node. Given sufficiently high resolution, our method can be used to determine arbitrarily large Chern numbers of topological phonon band-crossing nodes.