Spin-dependent scattering in CoFe/Cu/NiFe spin valve trilayers

Chong Yan; Jun Yu; Yun-bo Wang; Wen-li Zhou; Ji-fan Xie; Jun-xiong Gao; Dong-xiang Zhou

doi:10.1117/12.440240

14 September 2001 Spin-dependent scattering in CoFe/Cu/NiFe spin valve trilayers

Chong Yan, Jun Yu, Yun-bo Wang, Wen-li Zhou, Ji-fan Xie, Jun-xiong Gao, Dong-xiang Zhou

Proceedings Volume 4414, International Conference on Sensor Technology (ISTC 2001); (2001) https://doi.org/10.1117/12.440240
Event: International Conference on Sensing units and Sensor Technology, 2001, Wuhan, China

Abstract

Using the radio frequency magnetron sputtering approach to prepare CoFe/Cu/NiFe spin valve tri-layered films, we study the substrate temperature, CoFe insertion layer and NiFe insertion layer effect on the giant magnetoresistance. It is found that the magnetoresistance descends when the substrate temperature ascends. It is attributed that the interfacial spin-dependent scattering weakens because the diffusion at the interface strengthens at higher substrate temperature. The magnetoresistance increases when the spin valves are inserted by CoFe layers in Cu/NiFe interfaces and the magnetoresistance decreases when the spin valves are inserted by NiFe layer in CoFe/Cu interfaces. This implies that a smooth and continuous interface is more easily obtained in CoFe/Cu than in NiFe/Cu interface. Smooth interfaces strengthen the interfacial spin-dependent scattering that increase the giant magnetoresistance.

Citation Download Citation

Chong Yan, Jun Yu, Yun-bo Wang, Wen-li Zhou, Ji-fan Xie, Jun-xiong Gao, and Dong-xiang Zhou "Spin-dependent scattering in CoFe/Cu/NiFe spin valve trilayers", Proc. SPIE 4414, International Conference on Sensor Technology (ISTC 2001), (14 September 2001); https://doi.org/10.1117/12.440240

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available