Zobrazeno 1 - 10
of 372
pro vyhledávání: '"Mussler G"'
We fabricate high-quality c-axis oriented epitaxial YBa$_2$Cu$_3$O$_{7-x}$ films with 15% of yttrium atoms replaced by terbium (YTBCO) and study their electrical properties. The Tb substitution reduces the charge carrier density resulting in increase
Externí odkaz:
http://arxiv.org/abs/2211.02564
Autor:
Schumann, T., Kleinke, T., Braun, L., Meyer, N., Mussler, G., Kampmeier, J., Grützmacher, D., Schmoranzerova, E., Olejník, K., Reichlová, H., Heiliger, C., Denker, C., Walowski, J., Kampfrath, T., Münzenberg, M.
We study laser driven spin-current effects at ferromagnet/topological-insulator interfaces by two complementary experimental approaches. The DC photocurrent is studied in ferromagnet/topological-insulator bilayers with high spatial resolution. Dynami
Externí odkaz:
http://arxiv.org/abs/2202.01522
Autor:
Narayan, V., Verpoort, P. C., Dann, J. R. A., Backes, D., Ford, C. J. B., Lanius, M., Jalil, A. R., Schüffelgen, P., Mussler, G., Conduit, G. J., Grützmacher, D.
Publikováno v:
Phys. Rev. B 100, 024504 (2019)
We report non-equilibrium magnetodynamics in the Rashba-superconductor GeTe, which lacks inversion symmetry in the bulk. We find that at low temperature the system exhibits a non-equilibrium state, which decays on time scales that exceed conventional
Externí odkaz:
http://arxiv.org/abs/1902.04675
Autor:
Schumann, T., Meyer, N., Mussler, G., Kampmeier, J., Grützmacher, D., Schmoranzerova, E., Braun, L., Kampfrath, T., Walowski, J., Münzenberg, M.
The theoretical prediction of topological insulators in 2007 triggered tremendous interest. They are of fundamental interest because of their topological twist in k-space, which comes along with unidirectional, spin-polarized surface-state currents,
Externí odkaz:
http://arxiv.org/abs/1810.12799
Autor:
Plank, H., Pernul, J., Gebert, S., Danilov, S. N., König-Otto, J., Winnerl, S., Lanius, M., Kampmeier, J., Mussler, G., Aguilera, I., Grützmacher, D., Ganichev, S. D.
Publikováno v:
Phys. Rev. Materials 2, 024202 (2018)
We report on the systematic study of infrared/terahertz spectra of photocurrents in (Bi,Sb)Te based three dimensional topological insulators. We demonstrate that in a wide range of frequencies, ranging from fractions up to tens of terahertz, the phot
Externí odkaz:
http://arxiv.org/abs/1711.11457
Autor:
Backes, D., Huang, D., Mansell, R., Lanius, M., Kampmeier, J., Ritchie, D. A., Mussler, G., Gumbs, G., Grützmacher, D., Narayan, V.
Publikováno v:
Phys. Rev. B 96, 125125 (2017)
By combining $n$-type $\mathrm{Bi_2Te_3}$ and $p$-type $\mathrm{Sb_2Te_3}$ topological insulators, vertically stacked $p$-$n$ junctions can be formed, allowing to position the Fermi level into the bulk band gap and also tune between $n$- and $p$-type
Externí odkaz:
http://arxiv.org/abs/1605.06787
Autor:
Plank, H., Golub, L. E., Bauer, S., Bel'kov, V. V., Herrmann, T., Olbrich, P., Eschbach, M., Plucinski, L., Kampmeier, J., Lanius, M., Mussler, G., Grützmacher, D., Ganichev, S. D.
Publikováno v:
Phys. Rev. B 93, 125434 (2016)
We report on the observation of a terahertz radiation induced photon drag effect in epitaxially grown $n$- and $p$-type (Bi$_{1-x}$Sb$_{x}$)$_{2}$Te$_{3}$ three dimensional topological insulators with different antimony concentrations $x$ varying fro
Externí odkaz:
http://arxiv.org/abs/1512.07078
Autor:
Weyrich, C., Drögeler, M., Kampmeier, J., Eschbach, M., Mussler, G., Merzenich, T., Stoica, T., Batov, I. E., Schubert, J., Plucinski, L., Beschoten, B., Schneider, C. M., Stampfer, C., Grützmacher, D., Schäpers, Th.
Publikováno v:
Journal of Physics: Condensed Matter, Volume 28, Number 49 (2016)
Ternary (Bi1-xSbx)2Te3 films with an Sb content between 0 and 100% were deposited on a Si(111) substrate by means of molecular beam epitaxy. X-ray diffraction measurements confirm single crystal growth in all cases. The Sb content is determined by X-
Externí odkaz:
http://arxiv.org/abs/1511.00965
Autor:
Boschini, F., Mansurova, M., Mussler, G., Kampmeier, J., Grützmacher, D., Braun, L., Katmis, F., Moodera, J. S., Dallera, C., Carpene, E., Franz, C., Czerner, M., Heiliger, C., Kampfrath, T., Münzenberg, M.
Publikováno v:
Scientific Reports 5, 15304 (2015)
Topological insulators are candidates to open up a novel route in spin based electronics. Different to traditional ferromagnetic materials, where the carrier spin-polarization and magnetization are based on the exchange interaction, the spin properti
Externí odkaz:
http://arxiv.org/abs/1506.02692
Autor:
Jimenez, K., Nicolosi, P., Juschkin, L., Ahmed, Nadeem, Gaballah, A.E.H., Cattaruzza, E., Sertsu, M.G., Gerardino, A., Giglia, A., Mussler, G., Zuppella, P.
Publikováno v:
In Thin Solid Films 1 February 2020 695
