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A degenerate trion liquid in atomic double layers
Phuong X. Nguyen, Raghav Chaturvedi, Liguo Ma +5
Trions are a three-particle bound state of electrons and holes. Experimental realization of a trion liquid in the degenerate quantum limit would open a wide range of phenomena in q…
Emergence of ferromagnetism at the onset of moiré Kondo breakdown
Wenjin Zhao, Bowen Shen, Zui Tao +9
The interaction of a lattice of localized magnetic moments with a sea of conduction electrons in Kondo lattice models induces rich quantum phases of matter, such as Fermi liquids w…
Perfect Coulomb drag in a dipolar excitonic insulator
Phuong X. Nguyen, Liguo Ma, Raghav Chaturvedi +4
Excitonic insulators (EIs), arising in semiconductors when the electron-hole binding energy exceeds the band gap, are a solid-state prototype for bosonic phases of matter. Unlike t…
Observation of spin polarons in a frustrated moiré Hubbard system
Zui Tao, Wenjin Zhao, Bowen Shen +5
The electron's kinetic energy plays a pivotal role in magnetism. While virtual electron hopping promotes antiferromagnetism in an insulator, the real process usually favors ferroma…
Optical readout of the chemical potential of two-dimensional electrons
Zhengchao Xia, Yihang Zeng, Bowen Shen +5
The chemical potential u of an electron system is a fundamental property of a solid. A precise measurement of u plays a crucial role in understanding the electron interaction and q…
Integer and fractional Chern insulators in twisted bilayer MoTe2
Yihang Zeng, Zhengchao Xia, Kaifei Kang +7
Chern insulators, which are the lattice analogs of the quantum Hall states, can potentially manifest high-temperature topological orders at zero magnetic field to enable next-gener…
Giant spin Hall effect in AB-stacked MoTe2/WSe2 bilayers
Zui Tao, Bowen Shen, Wenjin Zhao +9
The spin Hall effect (SHE), in which electrical current generates transverse spin current, plays an important role in spintronics for the generation and manipulation of spin-polari…
Quantum Transport in Graphene Using Surface Acoustic Wave Resonators
Yawen Fang, Yang Xu, Kaifei Kang +7
Surface acoustic waves (SAWs) provide a contactless method for measuring the wavevector-dependent conductivity. This technique has been used to discover emergent length scales in t…