Eric Langenberg
YOU?
Author Swipe
View article: The coupling of polarization and oxygen vacancy migration in ferroelectric Hf0.5Zr0.5O2 thin films enables electrically controlled thermal memories above room temperature
The coupling of polarization and oxygen vacancy migration in ferroelectric Hf0.5Zr0.5O2 thin films enables electrically controlled thermal memories above room temperature Open
Here we investigate epitaxial Hf0.5Zr0.5O2 ferroelectric thin films as potential candidates to be used as non-volatile electric-field-modulated thermal memories. The electric-field dependence of the thermal conductivity of metal/Hf0.5Zr0.5…
View article: Epitaxy‐Driven Ferroelectric/Non‐Ferroelectric Polymorph Selection in an All‐Fluorite System
Epitaxy‐Driven Ferroelectric/Non‐Ferroelectric Polymorph Selection in an All‐Fluorite System Open
Films of ferroelectric hafnia have hitherto been deposited on electrodes with a non‐fluorite crystal structure. As a result, they are polycrystalline, contain fractions of non‐ferroelectric polymorphs or have poor crystal quality. Here, a …
View article: Deconvolution\nof Phonon Scattering by Ferroelectric\nDomain Walls and Point Defects in a PbTiO<sub>3</sub> Thin Film Deposited\nin a Composition-Spread Geometry
Deconvolution\nof Phonon Scattering by Ferroelectric\nDomain Walls and Point Defects in a PbTiO<sub>3</sub> Thin Film Deposited\nin a Composition-Spread Geometry Open
We\npresent a detailed analysis of the temperature dependence of\nthe thermal conductivity of a ferroelectric PbTiO3 thin\nfilm deposited in a composition-spread geometry enabling a continuous\nrange of compositions from ∼25% ti…
View article: Mechanical reading of ferroelectric polarization
Mechanical reading of ferroelectric polarization Open
Flexoelectricity is a property of dielectric materials whereby they exhibit electric polarization induced by strain gradients; while this effect can be negligible at the macroscale, it can become dominant at the nanoscale, where strain gra…
View article: Relaxation Mechanisms and Strain-Controlled Oxygen Vacancies in Epitaxial SrMnO<sub>3</sub> Films
Relaxation Mechanisms and Strain-Controlled Oxygen Vacancies in Epitaxial SrMnO<sub>3</sub> Films Open
SrMnO3 has a rich epitaxial strain-dependent ferroic phase diagram, in which a variety of magnetic orderings, even ferroelectricity, and thus multiferroicity, are accessible by gradually modifying the strain. Different relaxatio…
View article: Deconvolution of phonon scattering by ferroelectric domain walls and point defects in a PbTiO3 thin film deposited in a composition-spread geometry
Deconvolution of phonon scattering by ferroelectric domain walls and point defects in a PbTiO3 thin film deposited in a composition-spread geometry Open
We present a detailed analysis of the temperature dependence of the thermal conductivity of a ferroelectric PbTiO3 thin film deposited in a composition-spread geometry enabling a continuous range of compositions from ~25% titanium-deficien…
View article: Mechanical Softness of Ferroelectric <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>180</mml:mn><mml:mo>°</mml:mo></mml:mrow></mml:math> Domain Walls
Mechanical Softness of Ferroelectric Domain Walls Open
Using scanning probe microscopy, we measure the out-of-plane mechanical response of ferroelectric 180° domain walls and observe that, despite separating domains that are mechanically identical, the walls appear mechanically distinct—softer…
View article: Ferroelectric 180 degree walls are mechanically softer than the domains\n they separate
Ferroelectric 180 degree walls are mechanically softer than the domains\n they separate Open
Domain walls are functionally different from the domains they separate, but\nlittle is known about their mechanical properties. Using scanning probe\nmicroscopy, we have measured the mechanical response of ferroelectric 180o\ndomain walls …
View article: Ferroelectric 180 degree walls are mechanically softer than the domains they separate
Ferroelectric 180 degree walls are mechanically softer than the domains they separate Open
Domain walls are functionally different from the domains they separate, but little is known about their mechanical properties. Using scanning probe microscopy, we have measured the mechanical response of ferroelectric 180o domain walls and…
View article: The exit-wave power-cepstrum transform for scanning nanobeam electron diffraction: robust strain mapping at subnanometer resolution and subpicometer precision
The exit-wave power-cepstrum transform for scanning nanobeam electron diffraction: robust strain mapping at subnanometer resolution and subpicometer precision Open
View article: Strain-Engineered Ferroelastic Structures in PbTiO<sub>3</sub> Films and Their Control by Electric Fields
Strain-Engineered Ferroelastic Structures in PbTiO<sub>3</sub> Films and Their Control by Electric Fields Open
We study the interplay between epitaxial strain, film thickness, and electric field in the creation, modification, and design of distinct ferroelastic structures in PbTiO3 thin films. Strain and thickness greatly affect the stru…
View article: Ferroelectric Domain Walls in PbTiO<sub>3</sub> Are Effective Regulators of Heat Flow at Room Temperature
Ferroelectric Domain Walls in PbTiO<sub>3</sub> Are Effective Regulators of Heat Flow at Room Temperature Open
Achieving efficient spatial modulation of phonon transmission is an essential step on the path to phononic circuits using “phonon currents”. With their intrinsic and reconfigurable interfaces, domain walls (DWs), ferroelectrics are allurin…
View article: Engineering the magnetic order in epitaxially strained Sr1−xBaxMnO3 perovskite thin films
Engineering the magnetic order in epitaxially strained Sr1−xBaxMnO3 perovskite thin films Open
Chemical doping and epitaxy can be used to tailor the magnetoelectric properties of multiferroic thin films, such as SrMnO3. Here, we study the dependence of the magnetic order temperatures of Sr1−xBaxMnO3 thin films on epitaxial strain an…
View article: Grains and Strains from Cepstral Analysis of 4D-STEM Nano-Diffraction Datasets
Grains and Strains from Cepstral Analysis of 4D-STEM Nano-Diffraction Datasets Open
We report the availability of fast, high dynamic range pixel array detectors makes scanning convergent beam electron diffraction (CBED) a powerful tool for rapid, spatially resolved characterization of lattice structure over a wide range o…
View article: Growth and structural characterization of strained epitaxial <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">H</mml:mi><mml:msub><mml:mi mathvariant="normal">f</mml:mi><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msub><mml:mi mathvariant="normal">Z</mml:mi><mml:msub><mml:mi mathvariant="normal">r</mml:mi><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> thin films
Growth and structural characterization of strained epitaxial thin films Open
Ferroelectricity was recently reported in thin films with several compositions in the HfO2−Zr2 system with orthorhombic crystal structure. In the present paper we study the growth by pulsed laser deposition and the structural characterizat…
View article: Probing Strain-Induced Phenomena in Low Dimensionality Multiferroic Oxides
Probing Strain-Induced Phenomena in Low Dimensionality Multiferroic Oxides Open
Journal Article Probing Strain-Induced Phenomena in Low Dimensionality Multiferroic Oxides Get access C Magen, C Magen Laboratorio de Microscopias Avanzadas (LMA), Instituto de Nanociencia de Aragon (INA), Univ. de Zaragoza, Zaragoza, Spai…
View article: Spin-phonon coupling in epitaxial<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">S</mml:mi><mml:msub><mml:mi mathvariant="normal">r</mml:mi><mml:mrow><mml:mn>0.6</mml:mn></mml:mrow></mml:msub><mml:mi mathvariant="normal">B</mml:mi><mml:msub><mml:mi mathvariant="normal">a</mml:mi><mml:mrow><mml:mn>0.4</mml:mn></mml:mrow></mml:msub><mml:mi>Mn</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>thin films
Spin-phonon coupling in epitaxialthin films Open
Spin-phonon coupling is investigated in epitaxially strained Sr1-xBaxMnO3 thin films with perovskite structure by means of microwave (MW) and infrared (IR) spectroscopy. In this work we fo…
View article: Polar‐graded multiferroic <scp>S</scp> r <scp>M</scp> n <scp>O</scp> 3 thin films
Polar‐graded multiferroic <span>S</span> r <span>M</span> n <span>O</span> 3 thin films Open
Engineering defects and strains in oxides provides a promising route for the quest of thin film materials with coexisting ferroic orders, multiferroics, with efficient magnetoelectric coupling at room temperature. Indeed, precise control o…
View article: Analysis of the temperature dependence of the thermal conductivity of insulating single crystal oxides
Analysis of the temperature dependence of the thermal conductivity of insulating single crystal oxides Open
The temperature dependence of the thermal conductivity of 27 different single crystal oxides is reported from ≈20 K to 350 K. These crystals have been selected among the most common substrates for growing epitaxial thin-film oxides, spanni…
View article: Contact-Free Mapping of Electronic Transport Phenomena of Polar Domains in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>SrMnO</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>Films
Contact-Free Mapping of Electronic Transport Phenomena of Polar Domains inFilms Open
Local electronic transport phenomena are essential to many electronic devices, and for the development of future nanotechnology. Noninvasive characterization of transport properties with nanoscale resolution, however, is challenging. The a…
View article: Polar-Graded Multiferroic SrMnO<sub>3</sub> Thin Films
Polar-Graded Multiferroic SrMnO<sub>3</sub> Thin Films Open
Engineering defects and strains in oxides provides a promising route for the quest of thin film materials with coexisting ferroic orders, multiferroics, with efficient magnetoelectric coupling at room temperature. Precise control of the st…
View article: Nature of antiferromagnetic order in epitaxially strained multiferroic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>SrMnO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>thin films
Nature of antiferromagnetic order in epitaxially strained multiferroicthin films Open
Epitaxial films of SrMnO3 and bilayers of SrMnO3/La0.67Sr0.33MnO3 have been deposited by pulsed laser deposition on different substrates, namely, LaAlO3 (001), (LaAlO3<…
View article: Strain-induced coupling of electrical polarization and structural defects in SrMnO3 films
Strain-induced coupling of electrical polarization and structural defects in SrMnO3 films Open