Browse Physics

A study of the thermoelectric properties of the doped insulator, strontium titanate, shows that it superconducts with the lowest charge density ever observed.

The combination of the Josephson effect and topological order provides a testing ground for the emergence of Majorana fermions in solid-state systems.

Symmetry considerations point to a universal mechanism responsible for superconductivity in the iron pnictides and iron chalcogenides.

Cold-atom experiments tread into the land of two-dimensional superconductivity.

Electron transport measurements on thin films reveal whether two-dimensional metals support macroscopic supercurrents.

The theoretical prediction of the frequency and temperature dependent tendency toward Cooper pairing in five different scenarios allows experimental identification of mechanisms of superconductivity.

Researchers develop a new type of superconducting quantum interference device (SQUID) with significantly enhanced sensitivity and bandwidth, which can function as a general-purpose magnetic sensor.

Transport and quantum oscillations measurements in the cuprate superconductor ${\text{YBa}}_2{\text{Cu}}_3{\text{O}}_y$ point to density-wave order as an explanation for the peculiar doping evolution of the Fermi surface.

Heat transport measurements in an iron-based superconductor offer new clues towards the determination of the superconducting pairing interaction in these materials.

Time-resolved laser spectroscopy of a high-transition-temperature superconductor shows that excited electrons and phonons both relax very quickly on ultrafast time scales and to some extent independently.

High-resolution angle-dependent quantum oscillations in underdoped cuprates and unrestricted fits are used to suggest a new Fermi surface topology.

Measurements with a scanning probe microscope sensitive to micron-scale magnetization variations provide evidence for stripes of enhanced superfluid density at the surface of an iron-pnictide superconductor.

Quantum interference effects can, in theory, lead to the emergence of new particles carrying exotic quantum numbers at a critical point. But how good is the evidence that this happens?

The band structure of iron-based superconductors gives rise to yet another scenario for the appearance of Dirac fermions.

Scanning tunneling microscopy experiments in a high-temperature superconductor probe the temperature evolution of local electronic states, revealing that regions in the sample exhibiting weak superconductivity can persist to elevated temperatures if they are surrounded by regions of strong superconductivity.

The observation of a strong nonlinear diamagnetic signal well above $T_c$ in several cuprate superconductors constitutes clear evidence of the persistence of local superconducting correlations.

By doping the topological insulator bismuth selenide with copper to form copper layers, a topological superconductor is created.

A new experiment shows that entangled electron pairs can be spatially split into different arms of a carbon nanotube. Is a nanotube quantum teleporter on the horizon?

Raman spectroscopy of a cobalt-doped iron-pnictide superconductor reveals the complex electronic structure of the superconducting state in this material.

A theory of novel phase formation near quantum critical points suggests that large fluctuations lead to magnetic analogs of inhomogeneous superconductivity.