Publications by Petr Yudin | EPFL Graph Search

Physics and applications of charged domain walls

Alexander Tagantsev, Tomas Sluka, Petr Yudin, Petr Bednyakov

The charged domain wall is an ultrathin (typically nanosized) interface between two domains; it carries bound charge owing to a change of normal component of spontaneous polarization on crossing the wall. In contrast to hetero-interfaces between different ...

2018

Velocity Control of 180 degrees Domain Walls in Ferroelectric Thin Films by Electrode Modification

Nava Setter, Alexander Tagantsev, Tomas Sluka, Petr Yudin, Ludwig Feigl

The velocity of individual 1800 domain walls in thin ferroelectric films of PbZr0.1Ti0.9O3 is strongly dependent on the thickness of the top Pt electrode made by electron-beam induced deposition (EBID). We show that when the thickness is varied in the rang ...

Amer Chemical Soc2016

Thick domain walls in non-magnetic ferroics

Alexander Tagantsev, Petr Yudin, Konstantin Shapovalov

Recent developments in the physics of non-magnetic ferroics identified possible functionality of domain walls in these materials, which specifies the current interest to the internal structure of the walls. In this context, the wall thickness itself can be ...

Taylor & Francis Ltd2016

Moving antiphase boundaries using an external electric field

Nava Setter, Alexander Tagantsev, Konstantin Shapovalov, Kaushik Vaideeswaran, Petr Yudin

Antiphase boundaries (APBs) are unique domain walls that may demonstrate switchable polarization in otherwise non-ferroelectric materials such as SrTiO3 and PbZrO3. The current study explores the possibility of displacing such domain walls at the nanoscale ...

Amer Inst Physics2015

Controlling domain wall motion in ferroelectric thin films

Nava Setter, Alexander Tagantsev, Petr Yudin, Ludwig Feigl

Domain walls in ferroic materials have attracted significant interest in recent years, in particular because of the unique properties that can be found in their vicinity(1-3). However, to fully harness their potential as nanoscale functional entities(4,5), ...

Nature Publishing Group2015

Anomalously thick domain walls in ferroelectrics

Nava Setter, Alexander Tagantsev, Tomas Sluka, Maxim Gureev, Petr Yudin

Using the Landau theory we demonstrate the possibility of unusual, anomalously thick ferroelectric domain walls, where the order parameter rotates with a nearly constant modulus as in ferromagnets. The effect occurs in 90 degrees charged domain walls and i ...

Amer Physical Soc2015

Anomalously thick domain walls in ferroelectrics (vol 91, 060102, 2015)

Nava Setter, Alexander Tagantsev, Tomas Sluka, Maxim Gureev, Petr Yudin

Amer Physical Soc2015

Upper bounds for flexoelectric coefficients in ferroelectrics (vol 104, 082913, 2014)

Alexander Tagantsev, Petr Yudin

Amer Inst Physics2015

Room temperature concurrent formation of ultra-dense arrays of ferroelectric domain walls

Nava Setter, Alexander Tagantsev, Petr Yudin, Ludwig Feigl, Mahamudu Mtebwa, Konstantin Shapovalov

Properties of ferroelectric domain walls are attractive for future nano- and optoelectronics. An important element is the potential to electrically erase/rewrite domain walls inside working devices. Dense domain wall patterns, formed upon cooling through t ...

American Institute of Physics2015

Bent Ferroelectric Domain Walls as Reconfigurable Metallic-Like Channels

Nava Setter, Alexander Tagantsev, Igor Stolichnov, Tomas Sluka, Enrico Colla, Petr Yudin, Ludwig Feigl, Konstantin Shapovalov, Xiankui Wei, Arnaud Robert André Crassous

Use of ferroelectric domain-walls in future electronics requires that they are stable, rewritable conducting channels. Here we demonstrate nontherrnally activated metallic-like conduction in nominally uncharged, bent, rewritable ferroelectric-ferroelastic ...

Amer Chemical Soc2015