Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Volker Röbisch"'
Publikováno v:
AIP Advances, Vol 8, Iss 12, Pp 125320-125320-7 (2018)
We show the use of nickel-titanium (NiTi) metal thin films as functional substrates of magnetoelectric composites allowing the composites’ mechanical resonance to be tuned towards the frequency range of interest by employing the gradual change of t
Externí odkaz:
https://doaj.org/article/598088fbdad64e62917d7ba73f6d0f43
Autor:
Eckhard Quandt, Michael Hoft, Shayan Deldar, Volker Röbisch, Dirk Meyners, Elizaveta V. Golubeva, Necdet Onur Urs, Jeffrey McCord, Reinhard Knöchel, Sebastian Toxvaerd
Publikováno v:
Physical Review Applied. 13
We directly connect specific magnetic domain behaviors in magnetically modulated thin-film magnetoelectric composite sensors to the effective noise levels exhibited. Through simultaneous magnetoelectric response and time-resolved-magneto-optical-micr
Autor:
Volker Röbisch, Phillip Durdaut, Jens Reermann, Jeffrey McCord, Dirk Meyners, Matic Jovičević Klug, Sebastian Salzer, Reinhard Knöchel, Michael Hoft
Publikováno v:
IEEE Sensors Journal. 18:596-604
To enable the measurement of low-frequency magnetic signals with cantilever type thin-film magnetoelectric sensors, magnetic frequency conversion transfers the frequency of the desired signal into the mechanical resonance of the cantilever. The syste
Autor:
Reinhard Knöchel, Jeffrey McCord, Eckhard Quandt, Jens Reermann, Dirk Meyners, Michael Hoft, Volker Röbisch, Phillip Durdaut, Sebastian Salzer, Gerhard Schmidt
Publikováno v:
IEEE Sensors Letters. 1:1-4
Thin-film magnetoelectric sensors reach a sensitivity in the picotesla range around the resonance frequency of the mechanical structure. Using magnetic frequency conversion, a magnetic low-frequency signal can be transferred to the sensor's resonance
Autor:
Michael Hoft, Gerhard Schmidt, Eckhard Quandt, Andre Piorra, Patrick Hayes, Dirk Meyners, Sebastian Salzer, Volker Röbisch, Jens Reermann, Phillip Durdaut, Reinhard Knöchel
Publikováno v:
IEEE Sensors Journal. 17:2338-2348
Thin-film magnetoelectric sensors, i.e., composites of magnetostrictive and piezoelectric materials, are able to measure very low magnetic flux densities in the picotesla range. In order to further improve the limit of detection it is of high importa
Autor:
Reinhard Knöchel, Dirk Meyners, Volker Röbisch, Phillip Durdaut, Eckhard Quandt, Sebastian Salzer, Michael Hoft
Publikováno v:
IEEE Sensors Journal. 17:1373-1383
Magnetic frequency conversion is a promising technique to enhance the limit of detection of magnetoelectric sensors detecting low-frequency magnetic signals. In comparison with the direct detection in the mechanical resonance of the sensor, this meth
Autor:
Gerhard Schmidt, Christine Kirchhof, Eckhard Quandt, Enno Lage, Sebastian Salzer, E. Yarar, Reinhard Knöchel, Necdet Onur Urs, Michael Hoft, Jeffrey McCord, Andre Piorra, Dirk Meyners, Jens Reermann, Volker Röbisch
Publikováno v:
Journal of Materials Research. 32:1009-1019
Composite magnetoelectrics implemented as thin film heterostructures are discussed in view of their applicability as highly sensitive magnetic field sensors. Here, either PZT or AlN served as piezoelectric component. The magnetostrictive phase consis
Autor:
M. Jovičević Klug, Michael Hoft, Eckhard Quandt, Lars Thormählen, Dirk Meyners, Jeffrey McCord, S. D. Toxværd, Volker Röbisch, R. Knöchel
Publikováno v:
Applied Physics Letters. 114:192410
High sensitivity magnetoelectric (ME) thin film composite sensors, which enable the detection of picotesla magnetic fields, are improved in terms of magnetic noise performance by the elimination of magnetic domain (MD) activity. Using an antiparallel
Autor:
Patrick Hayes, Eckhard Quandt, Volker Röbisch, Dirk Meyners, E. Yarar, Andre Piorra, Reinhard Knöchel, Michael Hoft, Jens Reermann, Sebastian Salzer, Gerhard Schmidt
Publikováno v:
Applied Physics Letters. 108:182902
Magnetoelectric thin film composites have demonstrated their potential to detect sub-pT magnetic fields if mechanical resonances (typically few hundred Hz to a few kHz) are utilized. At low frequencies (1–100 Hz), magnetic field-induced frequency c
Autor:
Volker Röbisch, Stefan Rößler, Hans Peter Oepen, Eckhard Quandt, Demetrio R. Cavicchia, Lars Bocklage, Philipp Staeck, Robert Frömter, Fabian Kloodt, Axel Frauen
Publikováno v:
Applied physics letters 108(14), 142401-(2016). doi:10.1063/1.4945053
We demonstrate the feasibility of investigating periodically driven magnetization dynamics in a scanning electron microscope with polarization analysis based on spin-polarized low-energy electron diffraction. With the present setup, analyzing the tim