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Impurity-induced states in conventional and unconventional superconductors
We review recent developments in our understanding of how impurities influence the electronic states in the bulk of superconductors. Our focus is on the quasi-localized states in the vicinity of… Expand
Mott Transition in VO2 Revealed by Infrared Spectroscopy and Nano-Imaging
Electrons in correlated insulators are prevented from conducting by Coulomb repulsion between them. When an insulator-to-metal transition is induced in a correlated insulator by doping or heating,… Expand
Spin current and magnetoelectric effect in noncollinear magnets.
A new mechanism of the magnetoelectric effect based on the spin supercurrent is theoretically presented in terms of a microscopic electronic model for noncollinear magnets. The electric polarization… Expand
Superconductivity and quantum criticality in CeCoIn5.
- V. Sidorov, M. Nicklas, +4 authors J. Thompson
- Medicine, Physics
- Physical review letters
- 14 February 2002
Electrical resistivity measurements on a single crystal of the heavy-fermion superconductor CeCoIn5 at pressures to 4.2 GPa reveal a strong crossover in transport properties near P(*) approximately… Expand
Imaging the Fano lattice to ‘hidden order’ transition in URu2Si2
Within a Kondo lattice, the strong hybridization between electrons localized in real space (r-space) and those delocalized in momentum-space (k-space) generates exotic electronic states called ‘heavy… Expand
Interplay of electron–lattice interactions and superconductivity in Bi2Sr2CaCu2O8+δ
Formation of electron pairs is essential to superconductivity. For conventional superconductors, tunnelling spectroscopy has established that pairing is mediated by bosonic modes (phonons); a peak in… Expand
On the origin of the decrease in the torsional oscillator period of solid He4
A decrease in the rotational period observed in torsional oscillator measurements was recently taken as a possible indication of a supersolid state of helium. We reexamine this interpretation and… Expand
Scanning tunneling microscopy of DNA-wrapped carbon nanotubes.
We employ scanning tunneling microscopy (STM) to reveal the structure of DNA-carbon nanotube complexes with unprecedented spatial resolution and compare our experimental results to molecular dynamics… Expand
Spectroscopy of spontaneous spin noise as a probe of spin dynamics and magnetic resonance
Not all noise in experimental measurements is unwelcome. Certain fundamental noise sources contain valuable information about the system itself—a notable example being the inherent voltage… Expand
Unconventional superconductivity in PuCoGa5
In the Bardeen–Cooper–Schrieffer theory of superconductivity, electrons form (Cooper) pairs through an interaction mediated by vibrations in the underlying crystal structure. Like lattice vibrations,… Expand