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9 papers · 1 filter
Ba8CoNb6O24: a spin-1/2 triangular-lattice Heisenberg antiferromagnet in the 2D limit
R. Rawl, L. Ge, H. Agrawal +11
The perovskite Ba8CoNb6O24 comprises equilateral effective spin-1/2 Co2+ triangular layers separated by six non-magnetic layers. Susceptibility, specific heat and neutron scatterin…
Renormalization of fermion velocity in finite temperature QED_{3}
Jing-Rong Wang, Guo-Zhu Liu, Chang-Jin Zhang
At zero temperature, the Lorentz invariance is strictly preserved in three-dimensional quantum electrodynamics. This property ensures that the velocity of massless fermions is not…
Low-temperature heat transport of spin-gapped quantum magnets
Xia Zhao, Zhiying Zhao, Xuguang Liu +1
This article reviews low-temperature heat transport studies of spin-gapped quantum magnets in the last few decades. Quantum magnets with small spins and low dimensionality exhibit…
Excitonic pairing and insulating transition in two-dimensional semi-Dirac semimetals
Jing-Rong Wang, Guo-Zhu Liu, Chang-Jin Zhang
A sufficiently strong long-range Coulomb interaction can induce excitonic pairing in gapless Dirac semimetals, which generates a finite gap and drives semimetal-insulator quantum p…
Unconventional non-Fermi liquid state caused by nematic criticality in cuprates
Jing-Rong Wang, Guo-Zhu Liu, Chang-Jin Zhang
At the nematic quantum critical point that exists in the -wave superconducting dome of cuprates, the massless nodal fermions interact strongly with the quantum critica…
Interplay of Coulomb interaction and disorder in a two-dimensional semi-Dirac fermion system
Peng-Lu Zhao, Jing-Rong Wang, An-Min Wang +1
It was recently found that Coulomb interaction can induce a series of nontrivial spectral and transport properties in a two-dimensional anisotropic Weyl semimetal. Different from g…