Transport in Magnetic Layered Structures: Giant Magnetoresistance

Giant magnetoresistance in magnetic layered and granular materials.

William T. Golden Treasurer Richard S. Nicholson Executive Officer John Abelson Frederick W. Alt Don L. Anderson Stephen J. Benkovic David E. Bloom Floyd E. Bloom Henry R. Bourne James J. Bull Kathryn Calame C. Thomas Caskey Dennis W. Choi John M. Coffin Bruce F. Eldridge Paul T. Englund Richard G. Fairbanks Douglas T. Fearon Harry A. Fozzard Victor R. Fuchs Theodore H. Geballe Margaret J. Gell...

Enhanced magnetoresistance in layered magnetic structures with antiferromagnetic interlayer exchange.

The electrical resistivity of Fe-Cr-Fe layers with antiferromagnetic interlayer exchange increases when the magnetizations of the Fe layers are aligned antiparallel. The eA'ect is much stronger than the usual anisotropic magnetoresistance and further increases in structures with more than two Fe layers. It can be explained in terms of spin-Aip scattering of conduction electrons caused by the an...

Giant Magnetoresistance Induced by Magnetic Barriers

We present experimental results for hybrid ferromagnet/semiconductor devices in which 2D electrons propagate through sub-micron width magnet barriers. Magnetoresistances, , of 1000% are found at low temperatures and 1% at room temperature. We compared the measured behavior with numerical calculations and give the conditions needed to achieve large room temperature .

Giant Magnetoresistance

In today’s world of portable, high capacity music players and consumer hard drives with storage sizes of up to a terabyte, the ubiquitousness of information and the space to store it seems to be almost taken for granted in our society. However, the emergence of such vast and economical storage of data has only occurred within the past 10 years. The most prominent driving force of this technolog...

Giant Magnetoresistance in Magnetic Multilayers Using a New Embossed Surface