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Giant magneto-thermal conductivity in magnetic multilayers

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3 Author(s)
Taehee Jeong ; Data Storage Syst. Center, Carnegie Mellon Univ., Pittsburgh, PA, USA ; Moneck, M.T. ; Jian-Gang Zhu

In this paper, we present an experimental study on magneto-thermal effect in magnetic multilayers. A novel measurement technique has been developed and employed to obtain accurate measurements of magneto-thermal conductance and correlations with magnetoresistance in Co/Cu magnetic multilayers. The measurement technique involves a suspending patterned magnetic film strip using lithography technique to create an ideal one-dimension heat flow. 3ω method has been employed along with additional developed techniques to obtain accurate magneto-thermal conductivity measurements. It is found that the magneto-thermal conductance correlates well with the magneto-electric conductance under the application of magnetic field, however, with significant greater percentage change.

Published in:

Magnetics, IEEE Transactions on  (Volume:48 ,  Issue: 11 )