Hydrogenation Induced Reversible Modulation of Perpendicular Magnetic Coercivity in Pd/Co/Pd films

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Title:	Hydrogenation Induced Reversible Modulation of Perpendicular Magnetic Coercivity in Pd/Co/Pd films
Authors:	Lin, Wen-Chin;Tsai, Cheng-Jui;Wang, Bo-Yao;Kao, Chao-Hung;Pong, Way-Faung
Contributors:	淡江大學物理學系
Date:	2013-06
Issue Date:	2014-03-19 16:57:04 (UTC+8)
Publisher:	College Park: American Institute of Physics
Abstract:	In perpendicularly magnetized Pd/Co/Pd trilayers, the hydrogenation not only increased Kerr signal but also significantly enhanced the magnetic coercivity (H C ) by 17%. The reversibility was demonstrated by cyclic H2 exposure. The time constants of hydrogen absorption and desorption effect on H C range from tens to hundreds seconds, depending on the H2 gas pressure. The magneto-optical Kerr signal and magnetic coercivity was simultaneously recorded during H2 absorption and desorption. These multifarious signals respond differently and provide a detailed understanding of hydrogenation effect on the functional Pd/Co/Pd trilayers.
Relation:	Applied Physics Letters 102(25), 252404(5pages)
DOI:	10.1063/1.4812664
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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