71 Result(s)

Article

Is silver diammine fluoride effective in arresting dental caries in cavitated primary molars?

To evaluate the efficacy of silver diamine fluoride (SDF) in arresting dental caries in cavitated caries lesions in primary molars.

C. C. Bonifácio, D. Hesse in Evidence-Based Dentistry (2023)

Article

The Hall Technique 10 years on: Questions and answers

Article

Ferromagnetic properties of barium titanate ceramics doped with cobalt, iron, and nickel

The influence of annealing in strongly reducing atmosphere on the magnetic properties of hexagonal BaTiO₃ + 0.04 BaO + x/2 Co₂O₃ (0.0025 ≤ x ≤ 0.10) ceramics was investigated. The samples air-sintered at 1673 K w...

H. T. Langhammer, T. Müller, T. Walther, R. Böttcher… in Journal of Materials Science (2016)

Article

Epitaxial ferroelectric Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ thin films on La_0.7Sr_0.3MnO₃ bottom electrode

Epitaxial (001)-oriented 0.7Pb(Mg_0.33Nb_0.67)O₃-0.3PbTiO₃ (PMN-PT) thin films were deposited by pulsed laser deposition on vicinal SrTiO₃ (001) substrates using La_0.7Sr_0.3MnO₃ as bottom electrode. Detailed microst...

A. Chopra, E. Panda, Y. Kim, M. Arredondo, D. Hesse in Journal of Electroceramics (2014)

Article

Reversible electrical switching of spin polarization in multiferroic tunnel junctions

Magnetic tunnel junctions play an important role in controlling electron spin in spintronic devices. The reversible, remanent switching of electron-spin polarization in multiferroic tunnel junctions now enable...

D. Pantel, S. Goetze, D. Hesse, M. Alexe in Nature Materials (2012)

Article

Structure and Morphology of Epitaxially Intergrown (100)- and (116)-Oriented SrBi₂Ta₂O₉ Ferroelectric Thin Films on SrLaGaO₄(110) Substrates

SrBi₂Ta₂O₉ (SBT) epitaxial thin films having a mix of (100) and (116) orientations have been grown on SrLaGaO₄(110) by pulsed laser deposition. X-ray diffraction θ2 θ and pole figure scans, and cross-sectional tr...

H. N. Lee, D. N. Zakharov, P. Reiche, R. Uecker, D. Hesse in MRS Online Proceedings Library (2011)

Article

Initial Growth Stages of Epitaxial BaTiO₃ Films on Vicinal SrTiO³:Nb (001) Substrates

The growth mechanism of epitaxial BaTiO₃ films on vicinal Nb-doped SrTiO₃ (SrTiO₃:Nb) (001) substrate surfaces was studied in terms of surface morphology, crystalline orientation, microstructure, and film/substra...

A. Visinoiu, M. Alexe, H. N. Lee, D. N. Zakharov… in MRS Online Proceedings Library (2011)

Article

Light Scattering from Pulsed Laser Deposited BaBi₄Ti₄O₁₅ Thin Films

Light scattering investigations are carried out on BaBi₄Ti₄O₁₅ (BBiT) which is a member of the Bi-layer structure ferroelectric oxide with n = 4. The BBiT thin films, thickness ~ 300 nm, were grown on epitaxial c...

R. K. Soni, Anju Dixit, R. S. Katiyar, A. Pignolet… in MRS Online Proceedings Library (2011)

Article

Lattice Defects in Epitaxial Ba₂Bi₄Ti₅O₁₈ Thin Films Grown by Pulsed Laser Deposition Onto LaNiO₃ Bottom Electrodes

Epitaxial, ferroelectric Ba₂Bi₄Ti₅O₁₈ films grown on LaNiO₃/CeO₂/ZrO₂:Y₂O₃ epitaxial layers on Si(100) are investigated by cross-section high-resolution transmission electron microscopy (HRTEM). The films are per...

N. D. Zakharov, A. R. James, A. Pignolet, S. Senz… in MRS Online Proceedings Library (2011)

Chapter and Conference Paper

Ultrafast Structural Dynamics of Polar Solids Studied by Femtosecond X-Ray Diffraction

We discuss recent progress in ultrafast x-ray diffraction, addressing photoinduced structural dynamics in ferroelectric superlattices and polar molecular crystals. Elongations of coupled phonon modes affecting...

T. Elsaesser, C. von Korff Schmising, N. Zhavoronkov… in Ultrafast Phenomena XVI (2009)

Chapter and Conference Paper

Femtosecond X-ray Diffraction Study of the Ultrafast Coupling between Magnetization and Structure in the Ferromagnet SrRuO³

Femtosecond optical excitation of magnetically ordered SrRuO₃ nanolayers leads to an ultrafast demagnetization and a concomitant magnetoelastic contractive stress. The resulting ultrafast structural response of t...

C. v Korff Schmising, M. Bargheer, A. Harpoeth, N. Zhavoronkov… in Ultrafast Phenomena XVI (2009)

Chapter and Conference Paper

Diffraction contrast imaging and high resolution transmission electron microscopy of multiferroic thin films and heterostructures

Multiferroic materials exhibit simultaneous ferroelectric and ferromagnetic properties and are extensively studied because of their potential applications in multifunctional devices as well as for the understa...

B. I. Birajdar, I. Vrejoiu, X. S. Gao… in EMC 2008 14th European Microscopy Congress… (2008)

Chapter and Conference Paper

Ferroelectric materials and structures suitable for data storage: The role of microscopies in establishing preparation-microstructure-property relations

Among the various possible routes towards solid-state non-volatile random access memories (NV-RAMs) of high memory density, ferroelectric random access memories (FRAMs) offer very good prospects. Non-volatilit...

D. Hesse, M. Alexe, K. Boldyreva, H. Han… in EMC 2008 14th European Microscopy Congress… (2008)

Article

Accurate time delay determination for femtosecond X-ray diffraction experiments

We report on a versatile and accurate method for determining the time delay between femtosecond X-ray and optical pulses in an optical pump/X-ray diffraction probe experiment. Upon excitation with moderate pum...

C. von Korff Schmising, M. Bargheer, M. Kiel, N. Zhavoronkov… in Applied Physics B (2007)