The local environment of Co in B{sub 5}CH{sub x}

Cobalt-doped boron carbides produced by simultaneous plasma-enhanced chemical vapor deposition of carborane and cobaltocene are investigated. Cobalt does not dope plasma-enhanced chemical vapor deposition grown boron carbides as a random fragment of the cobaltocene source gas. The Co atoms are fivef...

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Veröffentlicht in:	Journal of applied physics 2008-04, Vol.103 (7)
Hauptverfasser:	Dowben, P. A., Lui Jing, Skomski, Ralph, Ignatov, A. Yu
Format:	Artikel
Sprache:	eng
Schlagworte:	ATOMS BORON BORON CARBIDES CHEMICAL BONDS CHEMICAL VAPOR DEPOSITION COBALT DOPED MATERIALS ENERGY GAP MATERIALS SCIENCE RANDOMNESS
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container_title	Journal of applied physics
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creator	Dowben, P. A. Lui Jing Skomski, Ralph Ignatov, A. Yu
description	Cobalt-doped boron carbides produced by simultaneous plasma-enhanced chemical vapor deposition of carborane and cobaltocene are investigated. Cobalt does not dope plasma-enhanced chemical vapor deposition grown boron carbides as a random fragment of the cobaltocene source gas. The Co atoms are fivefold boron coordinated (R=2.1 A) and chemically bonded to the icosahedral cages of B{sub 10}CH{sub x} or B{sub 9}C{sub 2}H{sub y}. Pairwise Co doping occurs with the cobalt atoms favoring sites about 5.3 A apart. The cobalt strongly hybridizes with the molecular orbitals of the icosahedral cage, and the states in the region of the band gap probably have a strong cobalt weight.
doi_str_mv	10.1063/1.2836798
format	Article
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Yu</creatorcontrib><description>Cobalt-doped boron carbides produced by simultaneous plasma-enhanced chemical vapor deposition of carborane and cobaltocene are investigated. Cobalt does not dope plasma-enhanced chemical vapor deposition grown boron carbides as a random fragment of the cobaltocene source gas. The Co atoms are fivefold boron coordinated (R=2.1 A) and chemically bonded to the icosahedral cages of B{sub 10}CH{sub x} or B{sub 9}C{sub 2}H{sub y}. Pairwise Co doping occurs with the cobalt atoms favoring sites about 5.3 A apart. 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Cobalt does not dope plasma-enhanced chemical vapor deposition grown boron carbides as a random fragment of the cobaltocene source gas. The Co atoms are fivefold boron coordinated (R=2.1 A) and chemically bonded to the icosahedral cages of B{sub 10}CH{sub x} or B{sub 9}C{sub 2}H{sub y}. Pairwise Co doping occurs with the cobalt atoms favoring sites about 5.3 A apart. The cobalt strongly hybridizes with the molecular orbitals of the icosahedral cage, and the states in the region of the band gap probably have a strong cobalt weight.</abstract><cop>United States</cop><doi>10.1063/1.2836798</doi></addata></record>
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subjects	ATOMS BORON BORON CARBIDES CHEMICAL BONDS CHEMICAL VAPOR DEPOSITION COBALT DOPED MATERIALS ENERGY GAP MATERIALS SCIENCE RANDOMNESS
title	The local environment of Co in B{sub 5}CH{sub x}
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