Zobrazeno 1 - 10
of 185
pro vyhledávání: '"P. Kagerer"'
Autor:
P. Kagerer, C. I. Fornari, S. Buchberger, T. Tschirner, L. Veyrat, M. Kamp, A. V. Tcakaev, V. Zabolotnyy, S. L. Morelhão, B. Geldiyev, S. Müller, A. Fedorov, E. Rienks, P. Gargiani, M. Valvidares, L. C. Folkers, A. Isaeva, B. Büchner, V. Hinkov, R. Claessen, H. Bentmann, F. Reinert
Publikováno v:
Physical Review Research, Vol 5, Iss 2, p L022019 (2023)
Inducing a magnetic gap at the Dirac point of the topological surface state (TSS) in a three-dimensional (3D) topological insulator (TI) is a route to dissipationless charge and spin currents. Ideally, magnetic order is present only at the surface, a
Externí odkaz:
https://doaj.org/article/5a09f0333497432499720c546b0b7394
Autor:
Figgemeier, T., Ünzelmann, M., Eck, P., Schusser, J., Crippa, L., Neu, J. N., Geldiyev, B., Kagerer, P., Buck, J., Kalläne, M., Hoesch, M., Rossnagel, K., Siegrist, T., Lim, L. -K., Moessner, R., Sangiovanni, G., Di Sante, D., Reinert, F., Bentmann, H.
We report the experimental discovery of orbital vortex lines in the three-dimensional (3D) band structure of a topological semimetal. Combining linear and circular dichroism in soft x-ray angle-resolved photoemission (SX-ARPES) with first-principles
Externí odkaz:
http://arxiv.org/abs/2402.10031
Autor:
Geldiyev, B., Ünzelmann, M., Eck, P., Kißlinger, T., Schusser, J., Figgemeier, T., Kagerer, P., Tezak, N., Krivenkov, M., Varykhalov, A., Fedorov, A., Nicolaï, L., Minár, J., Miyamoto, K., Okuda, T., Shimada, K., Di Sante, D., Sangiovanni, G., Hammer, L., Schneider, M. A., Bentmann, H., Reinert, F.
We study the interplay of lattice, spin and orbital degrees of freedom in a two-dimensional model system: a flat square lattice of Te atoms on a Au(100) surface. The atomic structure of the Te monolayer is determined by scanning tunneling microscopy
Externí odkaz:
http://arxiv.org/abs/2308.02372
Autor:
Tcakaev, Abdul V., Rubrecht, Bastian, Facio, Jorge I., Zabolotnyy, Volodymyr B., Corredor, Laura T., Folkers, Laura C., Kochetkova, Ekaterina, Peixoto, Thiago R. F., Kagerer, Philipp, Heinze, Simon, Bentmann, Hendrik, Green, Robert J., Gargiani, Pierluigi, Valvidares, Manuel, Weschke, Eugen, Haverkort, Maurits W., Reinert, Friedrich, Brink, Jeroen van den, Büchner, Bernd, Wolter, Anja U. B., Isaeva, Anna, Hinkov, Vladimir
The recent realizations of the quantum anomalous Hall effect (QAHE) in MnBi$_2$Te$_4$ and MnBi$_4$Te$_7$ benchmark the (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ family as a promising hotbed for further QAHE improvements. The family owes its potential to its
Externí odkaz:
http://arxiv.org/abs/2302.01023
Autor:
Penacchio, Rafaela F. S., Estradiote, Maurício B., Morelhão, Sérgio L., Fornari, Celso I., Kagerer, Philipp, Dittmar, Marco, Müller, Simon, Reinert, Friedrich
Combinations of advanced X-ray sources and zero-noise detector of enormous dynamic range have significantly increased the opportunity of mapping the reciprocal space of crystal lattices. It is particularly important in the design of new devices based
Externí odkaz:
http://arxiv.org/abs/2210.05427
Autor:
Kagerer, P., Fornari, C. I., Buchberger, S., Tschirner, T., Veyrat, L., Kamp, M., Tcakaev, A. V., Zabolotnyy, V., Morelhão, S. L., Geldiyev, B., Müller, S., Fedorov, A., Rienks, E., Gargiani, P., Valvidares, M., Folkers, L. C., Isaeva, A., Büchner, B., Hinkov, V., Claessen, R., Bentmann, H., Reinert, F.
Publikováno v:
Phys. Rev. Research 5 (2023), L022019
Inducing a magnetic gap at the Dirac point of the topological surface state (TSS) in a 3D topological insulator (TI) is a route to dissipationless charge and spin currents. Ideally, magnetic order is present only at the surface and not in the bulk, e
Externí odkaz:
http://arxiv.org/abs/2207.14421
Autor:
Penacchio, Rafaela F. S., Fornari, Celso I., Camillo, Yori G., Kagerer, Philipp, Buchberger, Sebastian, Kamp, Martin, Bentmann, Hendrik, Reinert, Friedrich, Morelhao, Sergio L.
Disordered heterostructures stand as a general description for compounds that are part of homologous series such as bismuth chalcogenides. In device engineering, van der Waals epitaxy of these compounds is very promising for applications in spintroni
Externí odkaz:
http://arxiv.org/abs/2109.01914
Autor:
Penacchio, Rafaela F. S., Fornari, Celso I., Camillo, Yori G., Kagerer, Philipp, Buchberger, Sebastian, Kamp, Martin, Bentmann, Hendrik, Reinert, Friedrich, Morelhao, Sergio L.
Synthesis of new materials demands structural analysis tools suited to the particularities of each system. Van der Waals (vdW) materials are fundamental in emerging technologies of spintronics and quantum information processing, in particular topolog
Externí odkaz:
http://arxiv.org/abs/2107.12280
Autor:
Tcakaev, Abdul, Zabolotnyy, Volodymyr B., Fornari, Celso I., Rüßmann, Philipp, Peixoto, Thiago R. F., Stier, Fabian, Dettbarn, Michael, Kagerer, Philipp, Weschke, Eugen, Schierle, Enrico, Bencok, Peter, Rappl, Paulo H. O., Abramof, Eduardo, Bentmann, Hendrik, Goering, Eberhard, Reinert, Friedrich, Hinkov, Vladimir
Publikováno v:
Phys. Rev. B 102, 184401 (2020)
Rare earth ions typically exhibit larger magnetic moments than transition metal ions and thus promise the opening of a wider exchange gap in the Dirac surface states of topological insulators. Yet, in a recent photoemission study of Eu-doped Bi$_2$Te
Externí odkaz:
http://arxiv.org/abs/2009.11733
Orbital Complexity in Intrinsic Magnetic Topological Insulators MnBi$_4$Te$_7$ and MnBi$_6$Te$_{10}$
Autor:
Vidal, R. C., Bentmann, H., Facio, J. I., Heider, T., Kagerer, P., Fornari, C. I., Peixoto, T. R. F., Figgemeier, T., Jung, S., Cacho, C., Büchner, B., Brink, J. van den, Schneider, C. M., Plucinski, L., Schwier, E. F., Shimada, K., Richter, M., Isaeva, A., Reinert, F.
Publikováno v:
Phys. Rev. Lett. 126, 176403 (2021)
Using angle-resolved photoelectron spectroscopy (ARPES), we investigate the surface electronic structure of the magnetic van der Waals compounds MnBi$_4$Te$_7$ and MnBi$_6$Te$_{10}$, the $n=$~1 and 2 members of a modular (Bi$_2$Te$_3$)$_n$(MnBi$_2$Te
Externí odkaz:
http://arxiv.org/abs/2007.07637