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Unconventional Superconductivity from Fermi Surface Fluctuations in Strongly Correlated Metals
Haoyu Hu, Ang Cai, Lei Chen +4
In quantum materials, electrons that have strong correlations tend to localize, leading to quantum spins as the building blocks for low-energy physics. When strongly correlated ele…
Spin-singlet and spin-triplet pairing correlations in antiferromagnetically coupled Kondo systems
Haoyu Hu, Ang Cai, Lei Chen +1
Recent experiments in quantum critical heavy fermion metals have pushed to the fore the question about whether antiferromagnetic fluctuations can promote both spin-singlet and spin…
Matrix-pairing states in the alkaline Fe-selenide superconductors: exotic Josephson junctions
Emilian M. Nica, Qimiao Si, Onur Erten
True to their unconventional nature, multi-band alkaline Fe-selenides and, more recently, the heavy-fermion CeCuSi have shown signatures of fully-gapped but sign-changi…
Electron correlations and -breaking density wave order in a kagome metal
Chandan Setty, Haoyu Hu, Lei Chen +1
There have been extensive recent developments on kagome metals, such as TX (T= Fe, Co and X= Sn, Ge) and VSb ( Cs, K, Rb). An emerging issue is the nature of…