Surface composition of Cd_1-xFe(Mn)_xTe_1-ySe_y systems exposed to air

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• 作者：Nenad Bundaleski^a ; ^b ; Ivana Radisavljević^a ; ^{iva@vin.bg.ac.rs} ; Joã ; o Trigueiro^b ; Alexander Tolstogouzov^b ; ^c ; Zlatko Rakočević^a ; Mirjana Medić^a ; Orlando M.N.D. Teodoro^b ; Neboj&scaron ; a Romčević^d ; Nenad Ivanović^a
• 关键词：Semiconductors ; Surfaces ; Oxidation ; Photoelectron spectroscopy ; AFM
• 刊名：Materials Chemistry and Physics
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：189
• 期：Complete
• 页码：35-43
• 全文大小：1865 K
• 卷排序：189

文摘

Nature of the CdFe(Mn)TeSe surfaces exposed to air is substantially different. Near–surface region is enriched in Cd and to some extent Te–deficient. Presence of Mn drastically changes the surface oxidation conditions. The surface oxidation in ambient conditions undergoes different mechanisms. Oxygen triggers Mn out–diffusion, while Fe diffuses into the bulk.