Strongly-correlated-electronic magnetism is the most fantastic field with surprises and challenges, in condensed matter physics. Many exotic ground states and low-energy excitations have been discovered and proposed, such as classical spin liquids with zero-point entropy, quantum spin liquids without symmetry breaking, fractionalized spinon excitations, quantum Griffiths singularity, and the high-temperature superconductivity. The essential physics of these fantastic phenomenon is the many-body problem, which is hardly exactly resolved to date except in very rare and special cases.
In this talk, the speaker will present their recent experimental results, including high-quality quantum magnetic materials, milli-Kelvin Faraday-force magnetization, heat capacity, adiabatic magnetocaloric effect measurements, muon spin relaxation/rotation, electron spin resonance, neutron scattering, as well as many-body modelling. He is trying to answer some basic and interesting questions, based on their studies on the novel magnets YbMgGaO4 [Phys. Rev. Lett. 122, 137201 (2019), Adv. Quantum Technol. 1900089 (2019)], TmMgGaO4 [PhysRevX. 10. 011007 (2020)], α-CrOOH [New J. Phys. 23, 033040 (2021)], and PrTiNbO6 [npj Quantum Mater. 6, 34 (2021)].
Yuesheng Li is a professor at Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, China. Before that, he was a postdoctoral researcher at Center for Electronic Correlations and Magnetism, University of Augsburg, Germany. His research area is quantum magnetism of new strongly many-body correlated materials. He is particularly interested in exploring new quantum materials, single-crystal growth, thermodynamic and magnetic measurements down to mK temperatures, neutron scattering/diffraction, muon spin relaxation, electron spin resonance, and many-body modelling.