Magnetic properties of Ag/Co/Pt(111) ultrathin films

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題名:	Magnetic properties of Ag/Co/Pt(111) ultrathin films
作者:	SU C. W. CHEN F. C. WU Y. E. SHERN C. S. 蘇炯武吳月娥沈青嵩
貢獻者:	臺北市立教育大學自然科學系
關鍵詞:	Transition elements LEED AES AES Kerr magneto-optical effect Interface magnetism Magnetic properties Platinum Crystal faces Cobalt Silver Magnetic thin films Metallic thin films Solid-solid interfaces Experimental study
日期:	2002
上傳時間:	2009-07-27 15:57:40 (UTC+8)
摘要:	The magnetic anisotropy of Ag/Co/Pt(111) ultrathin films was studied by the surface magneto-optic Kerr effect. Some interesting magnetic properties were observed. The location of Ag atoms on Co sites seems to prevent the spin reversal of Co. The saturated magnetization is not significantly changed after Ag ultrathin films are deposited on the Co/Pt(111) surfaces. The Curie temperatures increase after the Ag ultrathin film deposition. During thermal annealing, the out-of-plane magnetization in the Ag capped films is enhanced dramatically. The structural changes and the evolution of the chemical composition at the interfaces during the annealing were studied by low-energy electron diffraction and Auger electron spectroscopy. respectively. The giant enhancement of the out-of-plane magnetization is due to the formation of Co Pt alloy and Ag overlayer improving the interface structure.
關聯:	Surface science, v507-10 (983 p.) (17 ref.), p.492-497
顯示於類別:	[應用物理暨化學學系暨碩士班] 期刊論文

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