Exploration of new superconductors and functional materials, and fabrication of superconducting tapes and wires of iron pnictides

H Hosono, K Tanabe… - … and Technology of …, 2015 - iopscience.iop.org
This review shows the highlights of a 4-year-long research project supported by the
Japanese Government to explore new superconducting materials and relevant functional …

Probing multiband superconductivity by point-contact spectroscopy

D Daghero, RS Gonnelli - Superconductor Science and …, 2010 - iopscience.iop.org
Point-contact spectroscopy was originally developed for the determination of the electron–
phonon spectral function in normal metals. However, in the past 20 years it has become an …

Extended van Hove singularity and superconducting instability in doped graphene

JL McChesney, A Bostwick, T Ohta, T Seyller, K Horn… - Physical review …, 2010 - APS
We have investigated the effects of doping on a single layer of graphene using angle-
resolved photoemission spectroscopy. We show that many-body interactions severely warp …

Metal-intercalated aromatic hydrocarbons: a new class of carbon-based superconductors

Y Kubozono, H Mitamura, X Lee, X He… - Physical Chemistry …, 2011 - pubs.rsc.org
New carbon-based superconductors are synthesized by intercalating metal atoms into the
solid-phase hydrocarbons picene and coronene. The highest reported superconducting …

Superconductivity at 5 K in alkali-metal-doped phenanthrene

XF Wang, RH Liu, Z Gui, YL Xie, YJ Yan, JJ Ying… - Nature …, 2011 - nature.com
Organic superconductors have π-molecular orbitals, from which electrons can become
delocalized, giving rise to metallic conductivity due to orbital overlap between adjacent …

Electrostatically defined serial triple quantum dot charged with few electrons

D Schröer, AD Greentree, L Gaudreau, K Eberl… - Physical Review B …, 2007 - APS
A serial triple quantum dot (TQD) electrostatically defined in a Ga As∕ Al Ga As
heterostructure is characterized by using a nearby quantum point contact as charge …

Adiabatic and nonadiabatic phonon dispersion in a Wannier function approach

M Calandra, G Profeta, F Mauri - Physical Review B—Condensed Matter and …, 2010 - APS
We develop a first-principles scheme to calculate adiabatic and nonadiabatic phonon
frequencies in the full Brillouin zone. The method relies on the stationary properties of a …

Enhancement of Superconductivity and Evidence of Structural Instability<?format ?> in Intercalated Graphite under High Pressure

A Gauzzi, S Takashima, N Takeshita, C Terakura… - Physical review …, 2007 - APS
We measured the temperature dependent resistivity, ϱ (T), of the intercalated graphite
superconductor CaC 6 as a function of pressure up to 16 GPa. We found a large linear …

Functional form of the superconducting critical temperature from machine learning

SR Xie, GR Stewart, JJ Hamlin, PJ Hirschfeld… - Physical Review B, 2019 - APS
Predicting the critical temperature T c of new superconductors is a notoriously difficult task,
even for electron-phonon paired superconductors, for which the theory is relatively well …

Anisotropic gap of superconducting : A first-principles density functional calculation

A Sanna, G Profeta, A Floris, A Marini, EKU Gross… - Physical Review B …, 2007 - APS
We report first-principles calculations of the superconducting properties of CaC 6, obtained
within the density functional theory of superconductivity. We find a moderately anisotropic …