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  • 學位論文

鈷薄膜成長於鎢(111)與皺化鎢{112}上的晶體結構與磁性研究

Growth, Structure and Magnetism in Co/W(111) and Co/Faceted Pd/W{112}

指導教授 : 林文欽 宋克嘉
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並列摘要


The crystalline structure and magnetism of Co/W(111) and Co/faceted Pd/Wf112g surface are studied with low energy electron diraction (LEED), Auger electron spectroscopy (AES), temperature programmed thermal desorption (TPD) and magneto-optical Kerr eect (MOKE). We nd that Co/W(111) has revealed in-plane ferromagnetic ordered for room temperature growth mode and both of in-plane and perpen- dicular magnetism for low temperature growth mode. Co undergo well epitaxial on W(111) because of the small lattice mismatch in a specic orientaion. Co/faceted Pd/Wf112g reveals two-step hysteresis loops and we infer that alloys are formed. There is 40 Oe reduction in the magnetic coercivity of Co/faceted Pd/Wf112g when 1.8 langmuir hydrogen is dosed with 1.8 Langmuir.

並列關鍵字

faceted magnetism crystalline structure TPD MOKE AES

參考文獻


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