Magnetic Studies of Spin Wave Excitations in Ni/Cu Multilayers

• 作者: Abdeslam Tizliouine Hassan Lassri Hayat Salhi Naima Addou
• 来源期刊: 现代物理(英文)
• 学科: 物理学
• 关键词: Ni/Cu MULTILAYER MAGNETIZATION SPIN Wave EXCITATIONS Exchange INTERACTIONS
• 年，卷（期）: xdwlyw_2011,（11）
• 页码范围: 1285-1289
• 页数: 5页
• 分类号: O4

摘要

The magnetic properties of Ni/Cu multilayers, prepared by the electron beam evaporation method under ultra high vacuum conditions, have been systematically studied by magnetic measurements. The temperature dependence of the spontaneous magnetization M (T) is well described by a T3/2 law. A spin wave theory has been used to explain the magnetization versus temperature. Based on this theory, the approximate values for the exchange interactions have been obtained.