High-field electron transport in AlGaN/GaN heterostructures

J. M. Barker; D. K. Ferry; Stephen Goodnick; D. D. Koleske; A. Allerman; R. J. Shul

doi:10.1002/pssc.200461384

High-field electron transport in AlGaN/GaN heterostructures

J. M. Barker, D. K. Ferry, Stephen Goodnick, D. D. Koleske, A. Allerman, R. J. Shul

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Scopus citations

Abstract

Experimental studies have been performed on the velocity-field characteristics of AlGaN/GaN heterostructures. A pulsed voltage input in combination with a four-point measurement was used in a 50 Ω environment to determine the drift velocity of electrons in the two-dimensional electron gas as a function of the applied electric field. These measurements show an apparent saturation velocity near 3.1×10 ⁷cm/s, at a field of 140 kV/cm. A comparison of these studies shows that the experimental velocities are close to previously published simulations based upon Monte Carlo techniques.

Original language	English (US)
Title of host publication	Physica Status Solidi C: Conferences
Pages	2564-2568
Number of pages	5
Volume	2
Edition	7
DOIs	https://doi.org/10.1002/pssc.200461384
State	Published - 2005

ASJC Scopus subject areas

Condensed Matter Physics

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10.1002/pssc.200461384

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title = "High-field electron transport in AlGaN/GaN heterostructures",

abstract = "Experimental studies have been performed on the velocity-field characteristics of AlGaN/GaN heterostructures. A pulsed voltage input in combination with a four-point measurement was used in a 50 Ω environment to determine the drift velocity of electrons in the two-dimensional electron gas as a function of the applied electric field. These measurements show an apparent saturation velocity near 3.1×10 7cm/s, at a field of 140 kV/cm. A comparison of these studies shows that the experimental velocities are close to previously published simulations based upon Monte Carlo techniques.",

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AU - Barker, J. M.

AU - Ferry, D. K.

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AU - Koleske, D. D.

AU - Allerman, A.

AU - Shul, R. J.

PY - 2005

Y1 - 2005

N2 - Experimental studies have been performed on the velocity-field characteristics of AlGaN/GaN heterostructures. A pulsed voltage input in combination with a four-point measurement was used in a 50 Ω environment to determine the drift velocity of electrons in the two-dimensional electron gas as a function of the applied electric field. These measurements show an apparent saturation velocity near 3.1×10 7cm/s, at a field of 140 kV/cm. A comparison of these studies shows that the experimental velocities are close to previously published simulations based upon Monte Carlo techniques.

AB - Experimental studies have been performed on the velocity-field characteristics of AlGaN/GaN heterostructures. A pulsed voltage input in combination with a four-point measurement was used in a 50 Ω environment to determine the drift velocity of electrons in the two-dimensional electron gas as a function of the applied electric field. These measurements show an apparent saturation velocity near 3.1×10 7cm/s, at a field of 140 kV/cm. A comparison of these studies shows that the experimental velocities are close to previously published simulations based upon Monte Carlo techniques.

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SP - 2564

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BT - Physica Status Solidi C: Conferences

ER -

High-field electron transport in AlGaN/GaN heterostructures

Abstract

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