Impact of inplane currents on magnetoresistance properties of an exchangebiased spinvalv.pdfVIP

Impact of in-plane currents on magnetoresistance properties of an exchange-biased spin-valve with insulating antiferromagnetic layer D. N. H. Nam∗ Institute of Materials Science, VAST, 18 Hoang-Quoc-Viet, Hanoi, Vietnam N. V. Dai Institute of Materials Science, VAST, 18 Hoang-Quoc-Viet, Hanoi, Vietnam and q-Psi and Department of Physics, Hanyang University, Seoul 133-791, Korea 8 0 N. C. Thuan, L. V. Hong, and N. X. Phuc 0 Institute of Materials Science, VAST, 18 Hoang-Quoc-Viet, Hanoi, Vietnam 2 S. A. Wolf n a Department of Materials Science and Engineering, J University of Virginia, Charlottesville, Virginia 22903, USA 9 Y. P. Lee ] q-Psi and Department of Physics, Hanyang University, Seoul 133-791, Korea i c (Received February 2, 2008) s - The impact of in-plane alternating currents on the exchange bias, resistance, and magnetoresis- l r tance of a Co85Fe15/Ni0.85Co0.15O/Co85Fe15/Cu/Co85Fe15 spin-valve is studied. With increasing t current, the resistance is increased while the maximum magnetoresistance ratio decreases. Notice- m ably, the reversal of the pinned layer is systematically suppressed in both field sweeping directions. . t Since