Temperature and bias voltage dependence of Co-Fe-AlOX-Py-AlOX-Co-Fe double-barrier junctions

Thomas A, Bruckl H, Schmalhorst J-M, Reiss G (2003)
In: IEEE TRANSACTIONS ON MAGNETICS. 39. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC: 2821-2823.

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Abstract
Exchange-biased magnetic tunnel junctions with single and double barriers are investigated with respect to the temperature and bias voltage dependence of the tunneling magneto resistance. The single-barrier junctions show a tunneling magnetoresistance ratio of up to 49% at room temperature (72% at 10 K), the double-barrier systems up to 38% (57%), respectively, with three clearly separated magnetic states. The temperature and bias voltage dependence of the double-barrier junctions is explained as a serial connection of two single junctions. Theoretical studies of the tunneling magnetoresistance exhibit that the magnetoresistance ratio can be enhanced by ballistic electrons in double-barrier junctions, but only if the potential of the middle electrode can be shifted.
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Thomas A, Bruckl H, Schmalhorst J-M, Reiss G. Temperature and bias voltage dependence of Co-Fe-AlOX-Py-AlOX-Co-Fe double-barrier junctions. In: IEEE TRANSACTIONS ON MAGNETICS. Vol 39. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC; 2003: 2821-2823.
Thomas, A., Bruckl, H., Schmalhorst, J. - M., & Reiss, G. (2003). Temperature and bias voltage dependence of Co-Fe-AlOX-Py-AlOX-Co-Fe double-barrier junctions. IEEE TRANSACTIONS ON MAGNETICS, 39(5), 2821-2823.
Thomas, A., Bruckl, H., Schmalhorst, J. - M., and Reiss, G. (2003). “Temperature and bias voltage dependence of Co-Fe-AlOX-Py-AlOX-Co-Fe double-barrier junctions” in IEEE TRANSACTIONS ON MAGNETICS, vol. 39, (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC), 2821-2823.
Thomas, A., et al., 2003. Temperature and bias voltage dependence of Co-Fe-AlOX-Py-AlOX-Co-Fe double-barrier junctions. In IEEE TRANSACTIONS ON MAGNETICS. no.39 IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, pp. 2821-2823.
A. Thomas, et al., “Temperature and bias voltage dependence of Co-Fe-AlOX-Py-AlOX-Co-Fe double-barrier junctions”, IEEE TRANSACTIONS ON MAGNETICS, vol. 39, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003, pp.2821-2823.
Thomas, A., Bruckl, H., Schmalhorst, J.-M., Reiss, G.: Temperature and bias voltage dependence of Co-Fe-AlOX-Py-AlOX-Co-Fe double-barrier junctions. IEEE TRANSACTIONS ON MAGNETICS. 39, p. 2821-2823. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC (2003).
Thomas, Andy, Bruckl, H, Schmalhorst, Jan-Michael, and Reiss, Günter. “Temperature and bias voltage dependence of Co-Fe-AlOX-Py-AlOX-Co-Fe double-barrier junctions”. IEEE TRANSACTIONS ON MAGNETICS. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003.Vol. 39. 2821-2823.
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