Publication

Spectromicroscopy study of lateral band bending of the Ge-GaSe heterostructure

Giorgio Margaritondo, Helmuth Berger
1996
Journal Articles

Abstract

We report a study of the lateral band bending at the Ge-GaSe interface. Spectromicroscopy measurements with synchrotron radiation were performed at the ESCA microscopy line of ELETTRA in Ge patterned films on GaSe substrates. Preliminary results of lateral band bending, chemical reactions and the beam stimulated Ge surface migration are presented. These studies allowed us to seek on the microscopical equivalent of the semiconductor Debye length and to probe the capabilities of scanning-focused spectromicroscopical systems.

Official source

https://infoscience.epfl.ch/entities/publication/dae38687-d924-4335-8af4-4c7e3f125528

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Giorgio Margaritondo, Helmuth Berger
1996
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/dae38687-d924-4335-8af4-4c7e3f125528

About this result

Related concepts (23)

Synchrotron light source

A synchrotron light source is a source of electromagnetic radiation (EM) usually produced by a storage ring, for scientific and technical purposes. First observed in synchrotrons, synchrotron light is now produced by storage rings and other specialized particle accelerators, typically accelerating electrons. Once the high-energy electron beam has been generated, it is directed into auxiliary components such as bending magnets and insertion devices (undulators or wigglers) in storage rings and free electron lasers.

Synchrotron radiation

Synchrotron radiation (also known as magnetobremsstrahlung radiation) is the electromagnetic radiation emitted when relativistic charged particles are subject to an acceleration perpendicular to their velocity (a ⊥ v). It is produced artificially in some types of particle accelerators or naturally by fast electrons moving through magnetic fields. The radiation produced in this way has a characteristic polarization, and the frequencies generated can range over a large portion of the electromagnetic spectrum.

Synchrotron

A synchrotron is a particular type of cyclic particle accelerator, descended from the cyclotron, in which the accelerating particle beam travels around a fixed closed-loop path. The magnetic field which bends the particle beam into its closed path increases with time during the accelerating process, being synchronized to the increasing kinetic energy of the particles. The synchrotron is one of the first accelerator concepts to enable the construction of large-scale facilities, since bending, beam focusing and acceleration can be separated into different components.

Related publications (7)

Spectromicroscopy study of lateral band bending of the Ge-GaSe heterostructure

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