Bi1Te1 is a dual topological insulator

Autor: Markus Eschbach, Martin Lanius, Chengwang Niu, Ewa Młyńczak, Pika Gospodarič, Jens Kellner, Peter Schüffelgen, Mathias Gehlmann, Sven Döring, Elmar Neumann, Martina Luysberg, Gregor Mussler, Lukasz Plucinski, Markus Morgenstern, Detlev Grützmacher, Gustav Bihlmayer, Stefan Blügel, Claus M. Schneider

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)

Coexistence of a topological insulator phase and a topological crystalline insulator phase helps to maintain topological properties under a controlled symmetry breaking perturbation. Here, Eschbacket al. report a superlattice of Bi and Bi2Te3to be su

Externí odkaz: https://doaj.org/article/39ed1759900149d9b90882de2509cd31

Enhanced oxidation resistance of ZrB2/SiC composite through in situ reaction of gadolinium oxide in patterned surface cavities

Autor: Olivier Guillon, Sven Döring, Omar Cedillos-Barraza, William E. Lee, Stefan Nolte, Jesus Gonzalez-Julian

Publikováno v: Journal of the European Ceramic Society. 34:4157-4166

Micro-cavities on the surface of dense ZrB 2 /20 vol.% SiC composites, machined by ultra-fast laser ablation, were filled with Gd 2 O 3 nanopowder and oxidized in static air at 1600 °C. Optimized rectangular pattern of cavities, 10 μm diameter and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6c1b2aec5766e567214b453532061ed
https://doi.org/10.1016/j.jeurceramsoc.2014.07.015

Ultrashort high repetition rate exposure of dielectric materials: laser bonding of glasses analyzed by micro-Raman spectroscopy

Autor: Sören Richter, Felix Zimmermann, Stefan Nolte, Sven Döring, Andreas Tünnermann

Publikováno v: Applied Physics A. 110:9-15

We report on the joining of different glass types with dissimilar optical, thermal and mechanical properties by ultrashort laser welding at high repetition rates. Femtosecond laser pulses were focused at the interface of two optically contacted trans

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4559fe17d43a1165127d047ec5c2211b
https://doi.org/10.1007/s00339-012-7478-1

Drilling with ultrashort laser pulses at high repetition rates

Autor: Felix Dreisow, Jens König, Antonio Ancona, Stefan Nolte, Sven Döring

Publikováno v: Ultrashort Pulse Laser Technology, pp. 175–200, 2016
info:cnr-pdr/source/autori:Dreisow, Felix; Döring, Sven; Ancona, Antonio; König, Jens; Nolte, Stefan; Nolte, Stefan/titolo:Drilling with ultrashort laser pulses at high repetition rates/titolo_volume:Ultrashort Pulse Laser Technology/curatori_volume:/editore:/anno:2016
Springer Series in Optical Sciences ISBN: 9783319176581

Ultrashort laser pulses offer extraordinary precision in microprocessing a variety of materials, especially metals. Thermal and mechanical damage can be minimized by working at fluences not too far above the ablation threshold. However, this comes at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca2bb10c770e03fda0b3c06e7aa1c652

The local adsorption of pyridine on Si(100) a combined PES and XPD study

Autor: U. Berges, D. Weier, A. Beimborn, T. Lühr, Carsten Westphal, Sven Döring, F. Schönbohm

Publikováno v: Surface Science. 605:1784-1790

The chemical and geometrical properties of the system pyridine on Si(100) are investigated in a combined photoelectron spectroscopy (XPS) and photoelectron diffraction (XPD) study. Synchrotron radiation was applied to achieve high spectral resolution

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eaef407c5240b4b1f190e9ea1c5381db
https://doi.org/10.1016/j.susc.2011.06.010