Sentences with phrase «using photoemission»

Not exact matches

Some aspects of this phenomenon, namely the linear dependence of the particles» energy on their momentum, can be directly measured and visualized using angle - resolved photoemission spectroscopy (ARPES).

The group of Majed Chergui at EPFL, along with national and international colleagues, have shed light on this long - standing question by using a combination of cutting - edge experimental methods: steady - state angle - resolved photoemission spectroscopy (ARPES), which maps the energetics of the electrons along the different axis in the solid; spectroscopic ellipsometry, which determines the optical properties of the solid with high accuracy; and ultrafast two - dimensional deep - ultraviolet spectroscopy, used for the first time in the study of materials, along with state - of - the - art first - principles theoretical tools.

Using a technique called angle - resolved photoemission spectroscopy (left), the researchers measured the energy and momentum of electrons as they were ejected from the cadmium arsenide.

The lab of Marco Grioni at EPFL used a spectroscopy technique called ARPES (angle - resolved photoemission spectroscopy), which allows researchers to «track» electron behavior in a solid material.

The team made the discovery using a technique called angle - resolved photoemission spectroscopy.

The high - purity samples were then studied at the ALS using a technique known as ARPES (or angle - resolved photoemission spectroscopy), which provides a powerful probe of materials» electron properties.

The bismuth selenide / BSCCO material was brought to the ALS to study the electronic states on its surface using a technique known as ARPES, for angle - resolved photoemission spectroscopy.

In the experiments, researchers used a technique called angle - resolved photoemission spectroscopy, or ARPES, to knock electrons out of a copper oxide material, one of a handful of materials that superconduct at relatively high temperatures — although they still have to be chilled to at least minus 135 degrees Celsius.

Explores the electronic structure and electrodynamics of topological insulators and strongly correlated electron systems, with particular attention to emergent phenomena, such as superconductivity and magnetism, using angle - resolved photoemission (ARPES) and optical spectroscopy.

The experimental techniques often used to study electrons, such as photoemission spectroscopy, have limitations, but until recently it was not thought to be feasible to measure the electronic...

The results show that the gap around the node at sufficiently low temperatures can be well described by a monotonic d - wave gap function for both samples and the... ▽ More The energy gap of optimally doped Bi2 (Sr, R) 2CuOy (R = La and Eu) was probed by angle resolved photoemission spectroscopy (ARPES) using a vacuum ultraviolet laser (photon energy 6.994 eV) or He I resonance line (21.218 eV) as photon source.

Abstract: The energy gap of optimally doped Bi2 (Sr, R) 2CuOy (R = La and Eu) was probed by angle resolved photoemission spectroscopy (ARPES) using a vacuum ultraviolet laser (photon energy 6.994 eV) or He I resonance line (21.218 eV) as photon source.