X-ray diffraction and magnetic circular dichroism study of the Fe edge of epitaxial permalloy/Ru/permalloy trilayer

✍ Scribed by Ming-Zhe Lin; Chih-Hao Lee; Kuan-Li Yu; J.C.A. Huang; W.C. Chen

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 259 KB
• Volume: 345
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2003.11.057

✦ Synopsis

The structure, magnetic moment and the exchange coupling of epitaxial permalloy(1 1 1)//Ru(0 0 0 1)//permalloy(1 1 1) trilayer were studied by X-ray diffraction and magnetic circular dichroism. An oscillatory anti-ferromagnetic and ferromagnetic coupling as functions of the thickness of Ru layers was verified with an oscillatory period of about 1 nm. An enhancement of orbital moment of Fe in the permalloy layer was observed at the Ru thickness coincident with the anti-ferromagnetic coupling of the permalloy layers. The orbital/spin moment ratio is about 0.4 at Ru thickness of 0.7 nm.