Tabata, H. ; Matsui, H. ; Saeki, H. ; Masuda, S.
(2004)
Construction of ZnO devices : electric and
magnetic properties.
In: Gallium Arsenide applications symposium. GAAS 2004, 11—12 Ottobre, Amsterdam.
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Abstract
Zinc oxide is one of the wide band gap semiconductors.
By using the ZnO-layer as an active channel layer,
transparent transistors (ZnO-TFTs) have been
constructed. The ratio Ion/Ioff of ZnO-TFTs fabricated
on Si-wafers is about 106 and the optical transmittance
of ZnO-TFTs fabricated on glass is more than 80%. It
is also performed that the magnetic properties of ZnO
thin films are controlled by V or Co doping under the
non-equilibrium condition. Ferromagnetic properties
of Co-ZnO films are confirmed by not only SQUID but
also MCD and core-level XAS. Relatively weak signal
of ferromagnetics suggests that a part of the film shows
ferromagnetic character due to the inhomogeneous of
the doped exotic cations (V, Co etc.). These results show
that it is possible to fabricate a transparent spin-FET
that can be operated even in the presence of visible light
Abstract
Zinc oxide is one of the wide band gap semiconductors.
By using the ZnO-layer as an active channel layer,
transparent transistors (ZnO-TFTs) have been
constructed. The ratio Ion/Ioff of ZnO-TFTs fabricated
on Si-wafers is about 106 and the optical transmittance
of ZnO-TFTs fabricated on glass is more than 80%. It
is also performed that the magnetic properties of ZnO
thin films are controlled by V or Co doping under the
non-equilibrium condition. Ferromagnetic properties
of Co-ZnO films are confirmed by not only SQUID but
also MCD and core-level XAS. Relatively weak signal
of ferromagnetics suggests that a part of the film shows
ferromagnetic character due to the inhomogeneous of
the doped exotic cations (V, Co etc.). These results show
that it is possible to fabricate a transparent spin-FET
that can be operated even in the presence of visible light
Tipologia del documento
Documento relativo ad un convegno o altro evento
(Atto)
Autori
Settori scientifico-disciplinari
DOI
Data di deposito
16 Giu 2005
Ultima modifica
17 Feb 2016 14:16
URI
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Tipologia del documento
Documento relativo ad un convegno o altro evento
(Atto)
Autori
Settori scientifico-disciplinari
DOI
Data di deposito
16 Giu 2005
Ultima modifica
17 Feb 2016 14:16
URI
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