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Neutralization of manganese by hydrogen in GaAs

机译:GaAs中氢对锰的中和作用

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Ga1-xMnxAs samples, with x in the percent range, grown by molecular beam epitaxy at low temperature have been hydrogenated or deuterated by exposure to plasmas. At liquid helium temperature, the samples show local vibrational modes (LVMs) at about 2141 and 1546 cm(-1) in hydrogenated and deuterated layers, respectively. These LVMs evidence the formation of electrically inactive complexes involving manganese and hydrogen. Hydrogen sits most likely in bond center location between manganese and arsenic atoms-, it is mainly bonded with the arsenic atom. It is argued that the manganese-hydrogen complex is the unidentified acceptor hydrogen complex discussed in literature. (C) 2003 Elsevier B.V. All rights reserved. [References: 8]
机译:通过在低温下通过分子束外延生长的x在百分比范围内的Ga1-xMnxAs样品已经通过暴露于等离子体来氢化或氘化。在液氦温度下,样品在氢化层和氘代层中分别显示出大约2141和1546 cm(-1)的局部振动模式(LVM)。这些LVM证明形成了涉及锰和氢的电惰性复合物。氢最有可能位于锰和砷原子之间的键中心位置,它主要与砷原子键合。有人认为锰-氢配合物是文献中讨论的未知的受体氢配合物。 (C)2003 Elsevier B.V.保留所有权利。 [参考:8]

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