140 citations · 704 across the 16 of their papers we have counts for
16 papers
Two-phase driving of a linear radio-frequency ion trap
Santhosh Surendra, Akos Hoffmann, Michael Köhl
A linear radio-frequency Paul trap is traditionally driven with one diagonal pair of electrodes grounded and the other connected to a high-voltage radio-frequency source. This meth…
Electrostatic topology of ferroelectric domains in YMnO
Tobias Jungk, Ákos Hoffmann, Manfred Fiebig +1
Trimerization-polarization domains in ferroelectric hexagonal YMnO were resolved in all three spatial dimensions by piezoresponse force microscopy. Their topology is dominated…
Low-voltage nanodomain writing in He-implanted lithium niobate crystals
M. Lilienblum, A. Ofan, Á. Hoffmann +6
A scanning force microscope tip is used to write ferroelectric domains in He-implanted single-crystal lithium niobate and subsequently probe them by piezoresponse force microscopy.…
Impact of Electrostatic Forces in Contact Mode Scanning Force Microscopy
F. Johann, Á. Hoffmann, E. Soergel
In this contribution we address the question to what extent surface charges affect contact-mode scanning force microscopy measurements. % We therefore designed samples where…
Lateral Signals in Piezoresponse Force Microscopy at Domain Boundaries of Ferroelectric Crystals
Florian Johann, Tobias Jungk, Martin Lilienblum +2
In piezoresponse force microscopy a lateral signal at the domain boundaries is occasionally observed. In recent years, a couple of experiments have been reported and varying explan…
Sol-Gel Derived Ferroelectric Nanoparticles Investigated by Piezoresponse Force Microscopy
F. Johann, T. Jungk, S. Lisinski +3
Piezoresponse force microscopy (PFM) was used to investigate the ferroelectric properties of sol-gel derived LiNbO nanoparticles. To determine the degree of ferroelectricity we…