Browse Physics

The excitation spectrum of artificial spin ices can be used to identify defects that behave as magnetic monopoles.

A newly predicted state of matter is a simple theoretical example of a phase that conducts electricity but is not smoothly connected to our conventional model of metals.

A new approach to finding the electronic potentials in density-functional theory—one of the most important computational tools in condensed matter and quantum chemistry—is proposed.

Theorists can now calculate the speed with which correlations travel in a chain of interacting atoms.

New calculations confront the notion that adding impurities to one-dimensional solids called Luttinger liquids necessarily makes them insulators.

Ferromagnetic fluctuations drive superconductivity in UCoGe.

Transport measurements suggest that a lithium-based metal may be a candidate material for thermomagnetic cooling.

Simulating part of a perovskite heterostructure with a polarizable gel reveals the instrinsic properties of a two-dimensional electron liquid.

Researchers discover a subtle proximity effect at the interface between a normal metal and an antiferromagnetic insulator.

Tweaking the bulk properties of a topological insulator reveals the behavior of its surface states.

A form of quantum electrodynamics emerges from interacting spins at low temperatures in the spin ice ${\text{Yb}}_2{\text{Ti}}_2{\text{O}}_7$.

A spin model on a honeycomb lattice points to a much sought after type of quantum spin liquid: the Bose metal.

The interface between two insulators is found to display ferromagnetism and superconductivity.

Calculations show that Coulomb interactions can play a positive role in the hunt for Majorana fermions.

Experiments chip away at the assumption that Fermi-surface nesting is key to superconductivity in iron-based superconductors.

A quick-acting ac field may change the repulsive interaction in a system of correlated electrons to an attractive one.

Theorists predict the possibility of topological “Fermi arc” surface states in a system with broken time-reversal symmetry.

A compelling explanation for the abnormal metallic behavior of cuprate superconductors says they are described by a theory that is hidden in an unphysical world.

New calculations offer clues about the origin of the “hidden order” phase in URu2Si2.

The potential discovery of anyons in a fractional quantum Hall device tests the limits of what is known about particles confined to two dimensions.