Zobrazeno 1 - 10
of 155
pro vyhledávání: '"Claessen, Ralph"'
Autor:
Weber, Bent, Fuhrer, Michael S, Sheng, Xian-Lei, Yang, Shengyuan A, Thomale, Ronny, Shamim, Saquib, Molenkamp, Laurens W, Cobden, David, Pesin, Dmytro, Zandvliet, Harold J W, Bampoulis, Pantelis, Claessen, Ralph, Menges, Fabian R, Gooth, Johannes, Felser, Claudia, Shekhar, Chandra, Tadich, Anton, Zhao, Mengting, Edmonds, Mark T, Jia, Junxiang, Bieniek, Maciej, Väyrynen, Jukka I, Culcer, Dimitrie, Muralidharan, Bhaskaran, Nadeem, Muhammad
2D topological insulators promise novel approaches towards electronic, spintronic, and quantum device applications. This is owing to unique features of their electronic band structure, in which bulk-boundary correspondences enforces the existence of
Externí odkaz:
http://arxiv.org/abs/2406.14209
Autor:
Schmitt, Matthias, Biswas, Deepnarayan, Tkach, Olena, Fedchenko, Olena, Liu, Jieyi, Elmers, Hans-Joachim, Sing, Michael, Claessen, Ralph, Lee, Tien-Lin, Schönhense, Gerd
Soft X-ray momentum microscopy of crystalline solids is a highly efficient approach to map the photoelectron distribution in four-dimensional (E,k) parameter space over the entire Brillouin zone. The fixed sample geometry eliminates any modulation of
Externí odkaz:
http://arxiv.org/abs/2406.00771
Autor:
Keßler, Philipp, Waldsauer, Tim, Jovic, Vedran, Kamp, Martin, Schmitt, Matthias, Sing, Michael, Claessen, Ralph, Moser, Simon
We present a systematic growth study of epitaxial RuO$_2$(110) and IrO$_2$(110) on TiO$_2$(110) substrates by pulsed laser deposition. We describe the main challenges encountered in the growth process, such as a deteriorating material flux due to las
Externí odkaz:
http://arxiv.org/abs/2405.12878
Autor:
Alarab, Fatima, Hricovini, Karol, Leikert, Berengar, Richter, Christine, Schmitt, Thorsten, Sing, Michael, Claessen, Ralph, Minár, Ján, Strocov, Vladimir N.
Epitaxial thin films of SrTiO$_3$(100) doped with 6% and 12% Ni are studied with resonant angle-resolved photoelectron spectroscopy (ARPES) at the Ti and Ni L2,3-edges. We find that the Ni doping shifts the valence band (VB) of pristine SrTiO$_3$ tow
Externí odkaz:
http://arxiv.org/abs/2310.12669
Autor:
Tschirner, Teresa, Keßler, Philipp, Betancourt, Ruben Dario Gonzalez, Kotte, Tommy, Kriegner, Dominik, Buechner, Bernd, Dufouleur, Joseph, Kamp, Martin, Jovic, Vedran, Smejkal, Libor, Sinova, Jairo, Claessen, Ralph, Jungwirth, Tomas, Moser, Simon, Reichlova, Helena, Veyrat, Louis
Publikováno v:
APL Mater. 11, 101103 (2023)
Observations of the anomalous Hall effect in RuO$_2$ and MnTe have demonstrated unconventional time-reversal symmetry breaking in the electronic structure of a recently identified new class of compensated collinear magnets, dubbed altermagnets. While
Externí odkaz:
http://arxiv.org/abs/2309.00568
Autor:
Schmitt, Cedric, Erhardt, Jonas, Eck, Philipp, Schmitt, Matthias, Lee, Kyungchan, Wagner, Tim, Keßler, Philipp, Kamp, Martin, Kim, Timur, Cacho, Cephise, Lee, Tien-Lin, Sangiovanni, Giorgio, Moser, Simon, Claessen, Ralph
Publikováno v:
Achieving environmental stability in an atomically thin quantum spin Hall insulator via graphene intercalation. Nat Commun 15, 1486 (2024)
Atomic monolayers on semiconductor surfaces represent a new class of functional quantum materials at the ultimate two-dimensional limit, ranging from superconductors [1, 2] to Mott insulators [3, 4] and ferroelectrics [5] to quantum spin Hall insulat
Externí odkaz:
http://arxiv.org/abs/2305.07807
Autor:
Liu, Bing, Wagner, Tim, Enzner, Stefan, Eck, Philipp, Kamp, Martin, Sangiovanni, Giorgio, Claessen, Ralph
Structural moir\'e superstructures arising from two competing lattices may lead to unexpected electronic behavior, such as superconductivity or Mottness. Most investigated moir\'e heterostructures are based on van der Waals (vdW) materials, as strong
Externí odkaz:
http://arxiv.org/abs/2212.06297
Autor:
Tschirner, Teresa, Leikert, Berengar, Kern, Felix, Wolf, Daniel, Lubk, Axel, Kamp, Martin, Miller, Kirill, Hartmann, Fabian, Höfling, Sven, Büchner, Bernd, Dufouleur, Joseph, Gabay, Marc, Sing, Michael, Claessen, Ralph, Veyrat, Louis
Publikováno v:
Phys. Rev. B 108, 245405 (2023)
Linear magnetoresistance (LMR) is of particular interest for memory, electronics, and sensing applications, especially when it does not saturate over a wide range of magnetic fields. One of its principal origins is local mobility or density inhomogen
Externí odkaz:
http://arxiv.org/abs/2210.07682
Autor:
Eck, Philipp, Ortix, Carmine, Consiglio, Armando, Erhardt, Jonas, Bauernfeind, Maximilian, Moser, Simon, Claessen, Ralph, Di Sante, Domenico, Sangiovanni, Giorgio
The recently introduced classification of two-dimensional insulators in terms of topological crystalline invariants has been applied so far to "obstructed" atomic insulators characterized by a mismatch between the centers of the electronic Wannier fu
Externí odkaz:
http://arxiv.org/abs/2209.12915
Autor:
Syperek, Marcin, Stühler, Raul, Consiglio, Armando, Holewa, Paweł, Wyborski, Paweł, Dusanowski, Łukasz, Reis, Felix, Höfling, Sven, Thomale, Ronny, Hanke, Werner, Claessen, Ralph, Di Sante, Domenico, Schneider, Christian
Optical spectroscopy of ultimately thin materials has significantly enhanced our understanding of collective excitations in low-dimensional semiconductors. This is particularly reflected by the rich physics of excitons in atomically thin crystals whi
Externí odkaz:
http://arxiv.org/abs/2209.05915