New research from the Department of Energy's Oak Ridge National Laboratory, in collaboration with The Ohio State University ...

In most conventional semiconductors, thermal conductivity decreases as temperature rises because heat-carrying lattice vibrations—called phonons—scatter more frequently.

Scientists at Oak Ridge National Laboratory have found that applying an electric field to a specialized ceramic can nearly ...

Scientists have discovered that applying an electric field to certain ceramics can dramatically redirect how heat moves through them.

The quantum of thermal conductance, G Q = πk B 2 T/6ℏ, provides the fundamental upper limit for heat conduction through a single channel 8,9. Here, T is the temperature, k B denotes the Boltzmann ...

Combining state-of-the-art realistic atomistic modelling and experiments, the paper describes how thermal conductivity of ultrathin silicon membranes is controlled to large extent by the structure and ...

Fluids moving through pipes lose energy to friction along the walls. Collisions, defects, and random motion steadily break ...

The particles of liquids are further apart than solids. This means that most liquids are poor conductors of heat because the frequency of collisions is reduced. The particles of gases are even further ...