Controlled anisotropic GMR in laser ablated Cu-Co thin films

被引：7

作者：

Madurga, V ^{[1
]}

Ortega, RJ

Vergara, J

Palacios, S

Azcoiti, E

Rao, KV

机构：

[1] Univ Publ Navarra, Dept Phys, E-31006 Pamplona, Spain

[2] Royal Inst Technol, Dept Condensed Matter Phys, S-10044 Stockholm, Sweden

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 177卷

关键词：

magnetoresistance; -; giant; anisotropy; magnetic clusters; nanogranular alloy; anisotropic thin films; pulsed-laser ablation;

D O I：

10.1016/S0304-8853(97)00620-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Controlled microstructured Cu-Co thin films have been fabricated by pulsed-laser ablation during which the target was rotated between 10 and 32 rpm. The samples exhibit giant magnetoresistance after the films are annealed. The films obtained at low rotation velocities require a higher magnetic field (approximate to 0.15 T) to achieve the maximum resistance in the perpendicular MR as compared to 0.05 T for the parallel MR. On the other hand, the films obtained at higher rotation velocities require quantitatively similar magnetic fields in both orientations, about 0.05 T. This effect is discussed in terms of shape and crystalline anisotropy of magnetic nanoparticles. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：945 / 946

页数：2