Heat transfer between bodies separated by nanoscale vacuum gap distances has been
extensively studied for potential applications in thermal management [1, 2], energy …

Acoustic phonon transport is revealed as a potential radiation-to-conduction transition
mechanism for single-digit nanometer vacuum gaps. To show this, we measure heat transfer …

In vacuum, thermal energy is transported by photons (thermal radiation) but not phonons.
Recent studies, however, indicated that phonon heat transfer across a vacuum gap is …

Heat transfer in solids is typically conducted through either electrons or atomic vibrations
known as phonons. In a vacuum, heat has long been thought to be transferred by radiation …

With increasing interest in nanotechnology, the question arises of how heat is exchanged
between materials separated by only a few nanometers of vacuum. Here, we present …

When the separation of two surfaces approaches sub-nanometre scale, the boundary
between the two most fundamental heat transfer modes, heat conduction by phonons and …

Heat exchange between closely positioned bodies has become an important issue for such
areas of modern technology as integrated circuits, atomic force microscopy, and high …

The authors describe how acoustic phonons can directly tunnel through vacuum and,
therefore, transmit energy and conduct heat between bodies that are separated by a vacuum …

In contradictin to the common concept that acoustic phonons can only travel inside a
material medium, they can in fact" tunnel" across a vacuum gap with the help of …

Heat transfer between two surfaces separated by a nanometre gap is important for a number
of applications ranging from spaced head disk systems, scanning thermal microscopy and …