Plasma plume effects on the conductivity of amorphous-LaAlO3/SrTiO3 interfaces grown by pulsed laser deposition in O2 and Ar

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Plasma plume effects on the conductivity of amorphous-LaAlO3/SrTiO3 interfaces grown by pulsed laser deposition in O2 and Ar. / Sambri, A.; Christensen, Dennis ; Trier, Felix; Chen, Yunzhong; Amoruso, S.; Pryds, Nini; Bruzzese, R.; Wang, X.

In: Applied Physics Letters, Vol. 100, 2012, p. 131605.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Sambri, A.; Christensen, Dennis ; Trier, Felix; Chen, Yunzhong; Amoruso, S.; Pryds, Nini; Bruzzese, R.; Wang, X. / Plasma plume effects on the conductivity of amorphous-LaAlO3/SrTiO3 interfaces grown by pulsed laser deposition in O2 and Ar.

In: Applied Physics Letters, Vol. 100, 2012, p. 131605.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{5716e62df5384b119d7c8ea1b7c1e265,
title = "Plasma plume effects on the conductivity of amorphous-LaAlO<sub>3</sub>/SrTiO<sub>3</sub> interfaces grown by pulsed laser deposition in O<sub>2</sub> and Ar",
publisher = "American Institute of Physics",
author = "A. Sambri and Dennis Christensen and Felix Trier and Yunzhong Chen and S. Amoruso and Nini Pryds and R. Bruzzese and X. Wang",
year = "2012",
doi = "10.1063/1.4727905",
volume = "100",
pages = "131605",
journal = "Applied Physics Letters",
issn = "0003-6951",

}

RIS

TY - JOUR

T1 - Plasma plume effects on the conductivity of amorphous-LaAlO<sub>3</sub>/SrTiO<sub>3</sub> interfaces grown by pulsed laser deposition in O<sub>2</sub> and Ar

A1 - Sambri,A.

A1 - Christensen,Dennis

A1 - Trier,Felix

A1 - Chen,Yunzhong

A1 - Amoruso,S.

A1 - Pryds,Nini

A1 - Bruzzese,R.

A1 - Wang,X.

AU - Sambri,A.

AU - Christensen,Dennis

AU - Trier,Felix

AU - Chen,Yunzhong

AU - Amoruso,S.

AU - Pryds,Nini

AU - Bruzzese,R.

AU - Wang,X.

PB - American Institute of Physics

PY - 2012

Y1 - 2012

N2 - Amorphous-LaAlO3/SrTiO3 interfaces exhibit metallic conductivity similar to those found for the extensively studied crystalline-LaAlO3/SrTiO3 interfaces. Here, we investigate the conductivity of the amorphous-LaAlO3/SrTiO3 interfaces grown in different pressures of O2 and Ar background gases. During the deposition, the LaAlO3 ablation plume is also studied, in situ, by fast photography and space-resolved optical emission spectroscopy. An interesting correlation between interfacial conductivity and kinetic energy of the Al atoms in the plume is observed: to assure conducting interfaces of amorphous-LaAlO3/SrTiO3, the kinetic energy of Al should be higher than 1 eV. Our findings add further insights on mechanisms leading to interfacial conductivity in SrTiO3-based oxide heterostructures.© 2012 American Institute of Physics.

AB - Amorphous-LaAlO3/SrTiO3 interfaces exhibit metallic conductivity similar to those found for the extensively studied crystalline-LaAlO3/SrTiO3 interfaces. Here, we investigate the conductivity of the amorphous-LaAlO3/SrTiO3 interfaces grown in different pressures of O2 and Ar background gases. During the deposition, the LaAlO3 ablation plume is also studied, in situ, by fast photography and space-resolved optical emission spectroscopy. An interesting correlation between interfacial conductivity and kinetic energy of the Al atoms in the plume is observed: to assure conducting interfaces of amorphous-LaAlO3/SrTiO3, the kinetic energy of Al should be higher than 1 eV. Our findings add further insights on mechanisms leading to interfacial conductivity in SrTiO3-based oxide heterostructures.© 2012 American Institute of Physics.

U2 - 10.1063/1.4727905

DO - 10.1063/1.4727905

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

VL - 100

SP - 131605

ER -