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@ARTICLE{vonWitzleben:877262,
author = {von Witzleben, Moritz and Hennen, T. and Kindsmüller, A.
and Menzel, S. and Waser, R. and Böttger, U.},
title = {{S}tudy of the {SET} switching event of {VCM}-based
memories on a picosecond timescale},
journal = {Journal of applied physics},
volume = {127},
number = {20},
issn = {1089-7550},
address = {Melville, NY},
publisher = {American Inst. of Physics},
reportid = {FZJ-2020-02088},
pages = {204501 -},
year = {2020},
abstract = {In this paper, we present an approach of measuring the SET
kinetics of redox-based resistive memories at timescales
below 100 ps. Automatic measurements with an RF pulse
generator and a source measure unit allow the consecutive
application of short electrical pulses and the precise
detection of the device resistance. In addition, a
statistical evaluation of the SET kinetics has been
performed. By increasing the pulse duration in small steps,
varying the pulse amplitude and collecting a comprehensive
dataset, the transient resistance of a device can be
determined at a picosecond timescale. With this setup, we
measured the SET kinetics of two different valence change
memory-based resistive switching oxides, namely, TaOx and
ZrOx, between 50 ps and 250 ps. Two characteristic times
were measured: the SET time, being the delay after which the
transition to the low resistance state sets in, and the
transition time, which is the timespan during which the
resistance shifts from the high to the low resistive state.
We measured SET times down to 50 ps and transition times
below 15 ps for both materials. The intrinsic maximum
switching speed is not reached yet, which is limited by the
ion migration in the oxides, possibly corresponding to the
phonon THz frequency. Although charging times and heating
times potentially slow down the measured SET times, they
still allow 50 ps writing times at voltages of less than
5.0 V},
cin = {PGI-7 / JARA-FIT / PGI-10},
ddc = {530},
cid = {I:(DE-Juel1)PGI-7-20110106 / $I:(DE-82)080009_20140620$ /
I:(DE-Juel1)PGI-10-20170113},
pnm = {521 - Controlling Electron Charge-Based Phenomena
(POF3-521)},
pid = {G:(DE-HGF)POF3-521},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000537104800001},
doi = {10.1063/5.0003840},
url = {https://juser.fz-juelich.de/record/877262},
}