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Tin-related double acceptors in gallium selenide single crystals

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Tin-related double acceptors in gallium selenide single crystals

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dc.contributor.author Sánchez Royo, Juan Francisco
dc.contributor.author Errandonea Ponce, Daniel
dc.contributor.author Segura García del Río, Alfredo
dc.contributor.author Roa, L.
dc.contributor.author Chevy, A.
dc.date.accessioned 2010-06-08T09:53:57Z
dc.date.available 2010-06-08T09:53:57Z
dc.date.issued 1998
dc.identifier.citation SÁNCHEZ ROYO, J.F. ; ERRANDONEA, D. ; SEGURA, A. ; ROA, L. ; CHEVY, A. Tin-related double acceptors in gallium selenide single crystals. En: Journal of Applied Physics, 1998, vol. 83, no. 9 en
dc.identifier.uri http://hdl.handle.net/10550/12867
dc.description.abstract Gallium selenide single crystals doped with different amounts of tin are studied through resistivity and Hall effect measurements in the temperature range from 30 to 700 K. At low doping concentration tin is shown to behave as a double acceptor impurity in gallium selenide with ionization energies of 155 and 310 meV. At higher doping concentration tin also introduces deep donor levels, but the material remains p-type in the whole studied range of tin doping concentrations. The deep character of donors in gallium selenide is discussed by comparison of its conduction band structure to that of indium selenide under pressure. The double acceptor center is proposed to be a tin atom in interlayer position, with a local configuration that is similar to that of tin diselenide. The hole mobility exhibits an anomalous dependence on the tin content, attaining its maximum value in the ingot with 0.2% nominal tin content. This is proposed to be related to impurity pairing effects giving rise to thermal shallow acceptors with low ionization energy and low carrier scattering cross section, making the hole mobility to be controlled by phonon scattering mechanisms even for relatively high impurity content. en_US
dc.language.iso en en
dc.subject Gallium Compounds ; III-VI Semiconductors ; Tin ; Impurity States ; Deep Levels ; Electrical Resistivity ; Hall Effect ; Hole Mobility ; Conduction Bands en
dc.title Tin-related double acceptors in gallium selenide single crystals en
dc.type journal article es_ES
dc.subject.unesco UNESCO::FÍSICA en
dc.identifier.doi 10.1063/1.367264 en
dc.type.hasVersion VoR es_ES
dc.identifier.url http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JAPIAU000083000009004750000001&idtype=cvips&prog=normal&doi=10.1063/1.367264 en

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