Change search
ReferencesLink to record
Permanent link

Direct link
Superiority of p-type spin transistors
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
2006 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T126, 21-26 p.Article in journal (Refereed) Published
Abstract [en]

The spintronic device that has probably stimulated the most research interest is the Datta-Das spin transistor. The mechanism behind it, called the Rashba effect, is that an applied voltage gives rise to a spin splitting. We demonstrate that the relevant spin splitting in k-space can be made more than three orders of magnitude larger for holes than for electrons at the same electric field. This is partly achieved by utilizing the frequently neglected lattice-mismatch between GaAs and AlGaAs. We design heterostructures where this efficient Rashba effect should show up. Compared to present transistors, we conclude that electron-based spin transistors will have problems in becoming competitive but hole-based ones are much more promising.

Place, publisher, year, edition, pages
2006. Vol. T126, 21-26 p.
Keyword [en]
gaas/algaas quantum-wells, spintronics, injection, system, field
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-16274DOI: 10.1088/0031-8949/2006/T126/005ISI: 000246789700006ScopusID: 2-s2.0-42349117466OAI: diva2:334316
QC 20100525 QC 20110927. Conference: 21sth Nordic Semiconductor Meeting. Sundvolden, NORWAY. AUG 18-19, 2005 Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-09-27Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Ekenberg, Ulf
By organisation
Microelectronics and Applied Physics, MAP
In the same journal
Physica Scripta
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 16 hits
ReferencesLink to record
Permanent link

Direct link