Search Results - "Sparks, P.D."

The role of the habenular complex in the elevation of dorsal raphe nucleus serotonin and the changes in the behavioral responses produced by uncontrollable stress by Amat, J., Sparks, P.D., Matus-Amat, P., Griggs, J., Watkins, L.R., Maier, S.F.

“…Previous research indicates that the serotonergic neurons of the caudal dorsal raphe nucleus (DRN) are activated to a greater degree by inescapable shock (IS)…”
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Probing the Effect of Structural Roughness on Domain Wall Formation in Spin Valves Using the Offspecular Reflectivity Technique by Jun Park, Watson, S.M., Furjanic, C.M., Draganova, D.K., Carey, M.J., Borchers, J.A., Chih-Yung Chen, Sparks, P.D., Eckert, J.C.

“…A previous polarized neutron reflectivity study of IrMn-based spin valves demonstrated that domain wall formation during training is influenced by the…”
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The Effects of Ruthenium and Grain Size on Spin Valves With Ultra Thin Antiferromagnetic Pinning Layers by Furjanic, C., Draganova, D.K., Buchanan, W., Moyerman, S.M., Gannett, W., Sparks, P.D., Carey, M.J., Eckert, J.C.

“…Improvements in exchange-biased spin valves have come from control of the grain size and the addition of a ruthenium layer. In this work the GMR ratio, the…”
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Stripe domains and magnetoresistance in thermally deposited nickel films by Sparks, P.D, Stern, N.P, Snowden, D.S, Kappus, B.A, Checkelsky, J.G, Harberger, S.S, Fusello, A.M, Eckert, J.C

“…We report a study of the domain structure and magnetoresistance of thermally deposited nickel films. For films thicker than 17nm, we observe striped domains…”
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Ferromagnetic Relaxation in Spin Valves With Picoscale Antiferromagnetic Layers by Moyerman, S.M., Gannett, W., Borchers, J.A., Doucet, M., Carey, M.J., Sparks, P.D., Eckert, J.C.

“…We have investigated the mechanism of weak exchange bias for a spin valve with threshold layer antiferromagnetic (AFM) thickness using giant magnetoresistance…”
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Magnetic resistivity measurements in nickel films for CIW and CPW domain geometries by Snowden, D.S., Checkelsky, J.G., Harberger, S.S., Stern, N.P., Eckert, J.C., Sparks, P.D.

“…We report magnetoresistance measurements on Ni films with two stripe domain orientations. Measurements were taken for both current parallel to the domain walls…”
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Exchange bias and giant magnetoresistance in spin valves with Angstro/spl uml/m-scale antiferromagnetic Layers at 5 K by Perdue, K.L., Carey, M.J., Sparks, P.D., Eckert, J.C.

“…We have studied the effects on the exchange bias of decreasing the antiferromagnetic layer to the Angstro/spl uml/m-scale regime in order to shed light on the…”
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Blockade of alpha1 adrenoreceptors in the dorsal raphe nucleus prevents enhanced conditioned fear and impaired escape performance following uncontrollable stressor exposure in rats by Grahn, Ruth E, Hammack, S.E, Will, M.J, O'Connor, K.A, Deak, T, Sparks, P.D, Watkins, L.R, Maier, S.F

“…Previous research has shown that the effect of exposure to uncontrollable stressors on conditioned fear responding and escape behavior in rats is dependent on…”
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Exchange bias and giant magnetoresistance in spin valves with angstrom-scale antiferromagnetic layers at 5 K by PERDUE, K. L, CAREY, M. J, SPARKS, P. D, ECKERT, J. C

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Effects of oxygen concentration in Co/CoO exchange-coupled spin valves by Eckert, J.C., Stern, N.P., Snowden, D.S., Checkelsky, J.G., Sparks, P.D., Carey, M.J.

“…The properties of Co/CoO x exchange-coupled spin valves are explored at temperatures to 5 K. The spin valve structure is: 100 Å CoO x /30 Å Co/30 Å Cu/10 Å…”
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Exchange bias and giant magnetoresistance in spin valves with pico-scale antiferromagnetic layers by Perdue, K.L., Carey, M.J., Sparks, P.D., Eckert, J.C.

“…This work uses the giant magnetoresistance (GMR) of spin valves with pico-scale IrMn layers to determine the exchange biasing effects. The samples were…”
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Temperature dependent resistance of exchange biased spin valves with extremely thin IrMn by Stern, N.P., Barton, A.E., Sparks, P.D., Carey, M.J., Eckert, J.C.

“…Summary form only given. The properties of IrMn spin valves with IrMn layer thicknesses ranging from 4 /spl Aring/ to 28 /spl Aring/ are explored at…”
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