Search

Your search keyword '"Andersson, S."' showing total 70 results
Start Over Author "Andersson, S." Publisher ieee
70 results on '"Andersson, S."'

1. VEDLIoT: Very Efficient Deep Learning in IoT

Author

Kaiser, M., primary, Griessl, R., additional, Kucza, N., additional, Haumann, C., additional, Tigges, L., additional, Mika, K., additional, Hagemeyer, J., additional, Porrmann, F., additional, Ruckert, U., additional, vor dem Berge, M., additional, Krupop, S., additional, Porrmann, M., additional, Tassemeier, M., additional, Trancoso, P., additional, Qararyah, F., additional, Zouzoula, S., additional, Casimiro, A., additional, Bessani, A., additional, Cecilio, J., additional, Andersson, S., additional, Brunnegard, O., additional, Eriksson, O., additional, Weiss, R., additional, Mcierhofer, F., additional, Salomonsson, H., additional, Malekzadeh, E., additional, Odman, D., additional, Khurshid, A., additional, Felber, P., additional, Pasin, M., additional, Schiavoni, V., additional, Menetrey, J., additional, Gugala, K., additional, Zierhoffer, P., additional, Knauss, E., additional, and Heyn, H., additional

Published
2022
Full Text
View/download PDF

28. Thermoelectrically Controlled Spin-Switch.

Author

Andersson, S. and Korenivski, V.

Subjects
*SPINTRONICS, *THIN films, *MAGNETORESISTANCE, *THERMOELECTRIC materials, *NICKEL alloys, *COPPER alloys
Abstract

The search for novel spintronic devices brings about new ways to control switching in magnetic thin-films. In this work we experimentally demonstrate a device based on thermoelectrically controlled exchange coupling. The read out signal from a giant magnetoresistance element is controlled by exchange coupling through a weakly ferromagnetic Ni-Cu alloy. This exchange coupling is shown to vary strongly with changes in temperature, and both internal Joule heating and external heating is used to demonstrate magnetic switching. The device shows no degradation upon thermal cycling. Ways to further optimize the device performance are discussed. Our experimental results show a new way to thermoelectrically control magnetic switching in multilayers. [ABSTRACT FROM AUTHOR]

Published
2010
Full Text
View/download PDF

29. S-Cam: A Cryogenic Camera for Optical Astronomy based on Superconducting Tunnel Junctions.

Author

Rando, N. and Andersson, S.

Subjects
*CAMERAS, *CRYOELECTRONICS, *QUANTUM tunneling, *ASTRONOMY, *DESIGN
Abstract

Reports on the development of a cryogenic camera for optical astronomy based on superconducting tunnel junctions (STJ). STJ photon detectors; Overall S-Cam design based on 6x6 elements focal plane array; Camera design; S-Cam performance; S-Cam astronomical outcomes.

Published
2000
Full Text
View/download PDF

32. Spin Torques in Point Contacts to Exchange-Biased Ferromagnetic Films.

Author

Yanson, I. K., Naidyuk, Yu. G., Balkashin, O. P., Fisun, V. V., Triputen, L. Yu., Andersson, S., Korenivski, V., Yanson, Yu. I., and Zabel, H.

Subjects
FERROMAGNETIC materials, MAGNETORESISTANCE, FERROMAGNETISM, TORQUE, SPIN valves
Abstract

Hysteretic magneto-resistance of point contacts formed between non-magnetic tips and single ferromagnetic films exchange-pinned by antiferromagnetic films is investigated. The analysis of the measured current driven and field driven hysteresis agrees with the recently proposed model of the surface spin-valve, where the spin orientation at the interface can be different from that in the bulk of the film. The switching in magneto-resistance at low fields is observed to depend significantly on the direction of the exchange pinning, which allows identifying this transition as a reversal of interior spins of the pinned ferromagnetic films. The switching at higher fields is thus due to a spin reversal in the point contact core, at the top surface of the ferromagnet, and does not exhibit any clear field offset when the exchange-pinning direction or the magnetic field direction is varied. This magnitude of the switching field of the surface spins varies substantially from contact to contact and sometimes from sweep to sweep, which suggests that the surface coercivity can change under very high current densities and/or due to the particular microstructure of the point contact. In contrast, no changes in the effect of the exchange biasing on the interior spins are observed at high currents, possibly due to the rapid drop in the current density away from nanometer sized point contact cores. [ABSTRACT FROM AUTHOR]

Published
2010
Full Text
View/download PDF

33. Tunneling Spectroscopy of Magnetic Double Barrier Junctions.

Author

Lovan, A., Lam, K., Andersson, S., Cherepov, S. S., Haviland, D. B., and Korenivski, V.

Subjects
SPECTRUM analysis, MAGNETORESISTANCE, TRANSPARENCY (Optics), ELECTRODES, MAGNETIC fields
Abstract

Scanning tunneling microscopy (STM) is used to study transport in magnetic double tunnel junctions (DTJs) formed using a fixed transparency barrier of a patterned tunnel junction (TJ), and a variable tunnel barrier between the top electrode of the patterned junction and the STM tip. A sufficiently thin top electrode has been predicted to result in a rectification of charge current through a DTJ when the two barriers have different transparency. Our measurements indeed show a high current rectification ratio for 3-nm-thick, continuous film top electrodes, which is observed for junctions with asymmetric tunnel barriers. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results