Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
87 (2000), S. 4855-4857
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The magnetothermopower and magnetoresistance of two copper/cobalt multilayers grown on grooved indium phosphide were measured between 100 K and 295 K. One sample was deposited at an angle onto a grooved substrate such that transport properties are measured between layers rather than parallel to them (CPP); the other was deposited perpendicular to the substrate, so that the transport properties are measured at an angle to the planes (CAP). The data show the magnetothermopower to vary inversely with the resistivity, as predicted by the Mott formula if the magnetoresistance is determined by the ratio α of majority to minority densities of states at the Fermi energy EF in the magnetic metal. Using this result, we can collapse the thermopower data at various temperatures to find that α′/α is 0.6 eV−1 for the CPP sample and 0.7 eV−1 for the CAP sample, where α′≡(∂α/∂E)EF. © 2000 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.373181
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