Search Results - "Wiśniowski, P."

Magnetic field sensing characteristics of MgO based tunneling magnetoresistance devices with Co40Fe40B20 and Co60Fe20B20 electrodes by Wiśniowski, P., Dąbek, M., Cardoso, S., Freitas, P.P.

“…We developed spin valve tunneling magnetoresistance devices based on MgO barrier and two compositions of CoFeB electrodes capable of sensing magnetic field in…”
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High immunity wafer-level measurement of MHz current by Dąbek, M., Wiśniowski, P., Kalabiński, P., Wrona, J., Cardoso, S., Freitas, P.P.

“…•We present the system for high immunity wafer-level measurement of MHz current.•The effectiveness of the system results from utilizing balanced line…”
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Field noise in tunneling magnetoresistance sensors with variable sensitivity by Wisniowski, P., Dabek, M., Wrona, J.

“…We demonstrate CoFeB/MgO/CoFeB sensors with field noise level below magnetic noise-sensitivity scaling limit and significant reduction of 1/f noise corner…”
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Magnetic Tunnel Junctions Based on Out-of-Plane Anisotropy Free and In-Plane Pinned Layer Structures for Magnetic Field Sensors by Wisniowski, P., Wrona, J., Stobiecki, T., Cardoso, S., Freitas, P. P.

“…We have studied hysteresis, nonlinearity and sensitivity of CoFeB-MgO based magnetic tunnel junctions with out-of-plane and in-plane magnetizations…”
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Resonant tunneling through electronic trapping states in thin MgO magnetic junctions by Teixeira, J M, Ventura, J, Araujo, J P, Sousa, J B, Wisniowski, P, Cardoso, S, Freitas, P P

“…We report an inelastic electron tunneling spectroscopy study on MgO magnetic junctions with thin barriers (0.85-1.35 nm). Inelastic electron tunneling…”
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Reduction of low frequency magnetic noise by voltage-induced magnetic anisotropy modulation in tunneling magnetoresistance sensors by Wisniowski, P., Dąbek, M., Skowronski, W., Stobiecki, T., Cardoso, S., Freitas, P. P.

“…We demonstrate the reduction and control of magnetic noise by voltage-induced perpendicular anisotropy modulation in CoFeB/MgO/CoFeB sensors. The noise…”
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Caffeic acid phenethyl ester prevents 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced neurodegeneration by Fontanilla, C.V, Ma, Z, Wei, X, Klotsche, J, Zhao, L, Wisniowski, P, Dodel, R.C, Farlow, M.R, Oertel, W.H, Du, Y

“…Abstract Parkinson's disease is associated with the loss of dopaminergic neurons in the substantia nigra and decreased striatal dopamine levels. We now report…”
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Low-Frequency Noise in MgO Magnetic Tunnel Junctions: Hooge's Parameter Dependence on Bias Voltage by Almeida, J.M., Wisniowski, P., Freitas, P.P.

“…Low-frequency noise was studied in MgO magnetic tunnel junctions (MTJs). The junctions were analyzed under saturating magnetic fields to minimize the noise of…”
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Giant intrinsic thermomagnetic effects in thin MgO magnetic tunnel junctions by Teixeira, J. M., Costa, J. D., Ventura, J., Fernandez-Garcia, M. P., Azevedo, J., Araujo, J. P., Sousa, J. B., Wisniowski, P., Cardoso, S., Freitas, P. P.

“…An intrinsic spin-dependent Seebeck effect in the linear tunneling transport regime of magnetic tunneling junctions (MTJs) was discovered recently. This effect…”
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Observation of spin-dependent quantum well resonant tunneling in textured CoFeB layers by Teixeira, J. M., Costa, J. D., Ventura, J., Sousa, J. B., Wisniowski, P., Freitas, P. P.

“…We report the observation of spin-dependent quantum well (QW) resonant tunneling in textured CoFeB free layers of single MgO magnetic tunnel junctions (MTJs)…”
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Magnetic Field Sensor Based on Magnetic Tunnel Junction with Voltage-Tunable Magnetic Anisotropy by Skowroński, W., Wiśniowski, P., Wrona, J., Żywczak, A., Stobiecki, T.

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XRD study of the structure of NiFe/Au and NiFe/Cu superlattices by Kanak, J., Stobiecki, T., Wiśniowski, P., Gładyszewski, G., Maass, W., Szymański, B.

“…The θ–2 θ XRD-profiles of NiFe/Au and NiFe/Cu multilayers are interpreted using the model of non-ideal superlattice structure based on the Monte Carlo…”
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1/f Magnetic Noise Dependence on Free Layer Thickness in Hysteresis Free MgO Magnetic Tunnel Junctions by Wisniowski, P., Almeida, J.M., Freitas, P.P.

“…The noise spectrum of MgO magnetic tunnel junctions with linear transfer curves for varying CoFeB free layer thickness was studied. For continuous…”
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Structure and magnetic properties of (Fe97Al3)100-xNx films and (Fe97Al3)85N15/Al2O3 multilayers by STOBIECKI, T, KOPCEWICZ, M, POWROZNIK, W, KUSIOR, E, WISNIOWSKI, P, MAASS, W, OCKER, B, ROHRMANN, H

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Temperature dependence of tunnel magnetoresistance and magnetization of IrMn based MTJ by Wiśniowski, P., Stobiecki, T., Czapkiewicz, M., Wrona, J., Rams, M., Kim, C. G., Kim, C. O., Hu, Y. K., Tsunoda, M., Takahashi, M.

“…The temperature dependence of spin‐polarized tunnel magnetoresistance (TMR) is investigated between 30 K and 300 K for annealed junctions with the structure of…”
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Evidence of spin-polarized direct elastic tunneling and onset of superparamagnetism in MgO magnetic tunnel junctions by Teixeira, J. M., Ventura, J., Araujo, J. P., Sousa, J. B., Fernández-García, M. P., Wisniowski, P., Freitas, P. P.

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Effect of Buffer Layer Texture on the Crystallization of CoFeB and on the Tunnel Magnetoresistance in MgO Based Magnetic Tunnel Junctions by Cao, J., Kanak, J., Stobiecki, T., Wisniowski, P., Freitas, P.P.

“…Two different buffer layers (Ta/Ru/Ta and thick Ta) were tested for MgO MTJs. The influence of buffer layer texture on the crystallization of CoFeB bottom and…”
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Correction to "1/f Magnetic Noise Dependence on Free Layer Thickness in Hysteresis Free MgO Magnetic Tunnel Junctions" by Wisniowski, P., Almeida, J. M., Freitas, P. P

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Hybrid Magnetic Tunnel Junction-MEMS High Frequency Field Modulator for 1/f Noise Suppression by Guedes, A., Patil, S.B., Wisniowski, P., Chu, V., Conde, J.P., Freitas, P.P.

“…A dc to ac magnetic field transformer was developed using a magnetic tunnel junction (MTJ)/microelectromechanical system (MEMS) mixed device. A MEMS…”
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Multifractal analysis vehicle’s in-use speed profile for application in driving cycles by Puchalski, A., Komorska, I., Ślęzak, M., Wiśniowski, P.

“…Time signals recorded by the on-board diagnostic system (OBD), describing the manner of vehicle’s movement in actual road conditions show non-stationarity and…”
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