RT Journal Article
T1 Superconducting/magnetic three-state nanodevice for memory and reading applications
A1 Valle Granda, Javier del
A1 Gómez, A.
A1 González, E. M.
A1 Osorio, M. R.
A1 Granados, D.
A1 Vicent López, José Luis
AB We present a simple nanodevice that can operate in two modes: i) non-volatile three-state memory and ii) reading device. The nanodevice can retain three well defined states −1, 0 and +1 and can operate in a second mode as a sensor for external magnetic fields. The nanodevice is fabricated with an array of ordered triangular-shaped nanomagnets embedded in a superconducting thin film gown on Si substrates. The device runs based on the combination of superconducting vortex ratchet effect (superconducting film) with the out of plane magnetization (nanomagnets). The input signals are ac currents and the output signal are dc voltages. The memory mode is realized without applying a magnetic field and the nanomagnet stray magnetic fields govern the effect. In the sensor mode an external magnetic field is applied. The main characteristic of this mode is that the output signal is null for a precise value of the external magnetic field that only depends on the fabrication characteristics of the nanodevice.
PB Nature publishing group
SN 2045-2322
YR 2015
FD 2015-10
LK https://hdl.handle.net/20.500.14352/24285
UL https://hdl.handle.net/20.500.14352/24285
LA eng
NO ©Nature publishing group.We thank Spanish MINECO grant FIS2013-45469 and CM grant S2013/MIT-2850 and EU COST Action MP-1201. D.G. acknowledges RYC-2012-09864.
NO Ministerio de Economía y Competitividad (MINECO)
NO Comunidad de Madrid
NO EU COST Action
DS Docta Complutense
RD 8 abr 2025