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256 papers · 1 filter
BCS-BEC crossover driven by small Fermi pockets of a high-Tc cuprate superconductor
Junhyeok Jeong, Yamato Enomoto, Yoshimitsu Kohama +16
Fermi arcs observed in underdoped cuprates have sparked debate over whether they represent segments of a large Fermi surface or small Fermi pockets. This ambiguity has long hindere…
Superconductivity Reinforces Charge-Density-Wave Phase Coherence across Cuprates
H. Lee, C. -T. Kuo, M. Fujita +2
For decades, superconductivity in high-Tc cuprates has been viewed as a competitor that suppresses charge-density-wave (CDW) order by reducing its amplitude and spatial extent. Her…
Magnetic Quantum Criticality inside the Superconducting State Revealed by Penetration Depth Scaling with Local
Yusuke Iguchi, Kaede Inoh, Ryosuke Koizumi +1
We demonstrate a magnetic quantum critical point embedded within the superconducting state of Zn-doped CeCoIn, revealed by a pronounced peak in the magnetic penetration depth a…
Anomalous Nodal Gap in a Doped Spin-1/2 Antiferromagnetic Mott Insulator
Yong Hu, Christopher Lane, Xiang Chen +10
Many emergent phenomena appear in doped Mott insulators near the insulator-to-metal transition. In high-temperature cuprate superconductors, superconductivity arises when antiferro…
Reducing the strain required for ambient-pressure superconductivity in bilayer nickelates
Yaoju Tarn, Yidi Liu, Florian Theuss +7
The remarkable discovery of high temperature superconductivity in bulk bilayer nickelates under high pressure has prompted the conjecture that epitaxial compressive strain might mi…
Hund's coupling assisted orbital-selective superconductivity in Ba1-xKxFe2As2
Elena Corbae, Rong Zhang, Cong Li +10
While the superconducting transition temperature of hole-doped Ba_{1-x}K_{x}Fe_{2}As_{2} decreases past optimal doping, superconductivity does not completely disappear even for the…