Publications de Ludwig Feigl | EPFL Graph Search

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Conductive domain walls (DWs) in ferroic oxides as device elements are a highly attractive research topic because of their robust and agile response to electric field. Charged DWs possessing metallic-type conductivity hold the highest promises in this aspe ...

In the pursuit of ferroic-based (nano) electronics, it is essential to minutely control domain patterns and domain switching. The ability to control domain width, orientation and position is a prerequisite for circuitry based on fine domains. Here, we deve ...

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 ...

Defect engineering is one of the cornerstones of the modern electronics industry. Almost all electronic devices include materials that have been doped by ion bombardment. For materials where crystallinity is essential, such as ferroelectrics, defect type a ...

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 ...

We investigate the atomistic structure of ferroelastic-ferroelectric 90 degrees domain walls in PbTiO3 with first-principles calculations and high-resolution scanning transmission electron microscopy. We find sharp discontinuities in the variation of latti ...

Ludwig Feigl

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Controlled Charging of Ferroelastic Domain Walls in Oxide Ferroelectrics

Controlled stripes of ultrafine ferroelectric domains

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

Nanoscale Defect Engineering and the Resulting Effects on Domain Wall Dynamics in Ferroelectric Thin Films

Bent Ferroelectric Domain Walls as Reconfigurable Metallic-Like Channels

Asymmetric structure of 90 deg. domain walls and interactions with defects in PbTiO3