Zobrazeno 1 - 10
of 327
pro vyhledávání: '"Wirth, Steffen"'
Autor:
Schmult, Stefan, Solovyev, Victor V., Wirth, Steffen, Großer, Andreas, Mikolajick, Thomas, Kukushkin, Igor V.
Landau level splitting in a two-dimensional electron gas (2DEG) confined in an ultrapure GaN/AlGaN heterostructure grown by molecular beam epitaxy on bulk GaN is verified spectroscopically. The Landau level fan reconstructed from magneto-photolumines
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A81100
https://tud.qucosa.de/api/qucosa%3A81100/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A81100/attachment/ATT-0/
Autor:
Park, Min Hyuk, Chung, Ching-Chang, Schenk, Tony, Richter, Clauda, Hoffmann, Michael, Wirth, Steffen, Jones, Jacob L., Mikolajick, Thomas, Schroeder, Uwe
The structural origin of the temperature-dependent ferroelectricity in Si-doped HfO₂ thin films is systematically examined. From temperature-dependent polarization-electric field measurements, it is shown that remanent polarization increases with d
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A80498
https://tud.qucosa.de/api/qucosa%3A80498/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A80498/attachment/ATT-0/
Autor:
Rößler, Sahana, Coduri, Mauro, Tsirlin, Alexander A., Ritter, Clemens, Cuello, Gabriel, Koz, Cevriye, Muzica, Liudmila, Schwarz, Ulrich, Rößler, Ulrich K., Wirth, Steffen, Scavini, Marco
Publikováno v:
Physical Review B 105, 064505 (2022)
We study the crystal structure of the tetragonal iron selenide FeSe and its nematic phase transition to the low-temperature orthorhombic structure using synchrotron x-ray and neutron scattering analyzed in both real and reciprocal space. We show that
Externí odkaz:
http://arxiv.org/abs/2203.03909
In Ref. 1, Schubert et al. [Phys. Rev. Research 1, 032004 (2019)] reported measurements of the isothermal magnetoresistance of Fe- and Ni-substituted YbRh$_2$Si$_2$, based on which they raised questions about the Kondo destruction description for the
Externí odkaz:
http://arxiv.org/abs/1910.04108
Autor:
Li, Guowei, Xu, Qiunan, Shi, Wujun, Fu, Chenguang, Jiao, Lin, Kamminga, Machteld E., Yu, Mingquan, Tüysüz, Harun, Kumar, Nitesh, Süß, Vicky, Saha, Rana, Srivastava, Abhay K., Wirth, Steffen, Auffermann, Gudrun, Gooth, Johannes, Parkin, Stuart, Sun, Yan, Liu, Enke, Felser, Claudia
Publikováno v:
Science Advances 5, eaaw9867 (2019)
The band inversion in topological phase matters bring exotic physical properties such as the emergence of a topologically protected surface states. They strongly influence the surface electronic structures of the investigated materials and could serv
Externí odkaz:
http://arxiv.org/abs/1908.08567
Publikováno v:
Phys. Rev. B 99, 245158 (2019)
Weyl semimetals with time reversal symmetry breaking are expected to show various fascinating physical behaviors, such as intrinsic giant anomalous Hall effect, chiral anomaly effect in the bulks, and Fermi arcs on the surfaces. Here we report a scan
Externí odkaz:
http://arxiv.org/abs/1908.08568
Autor:
Jiao, Lin, Rößler, Sahana, Kasinathan, Deepa, Rosa, Priscila F. S., Guo, Chunyu, Yuan, Huiqiu, Liu, Chao-Xing, Fisk, Zachary, Steglich, Frank, Wirth, Steffen
Publikováno v:
Sci. Adv. 4 (11), eaau4886 (2018)
The impact of non-magnetic and magnetic impurities on topological insulators is a central problem concerning their fundamental physics and possible novel spintronics and quantum computing applications. SmB$_6$, predicted to be a topological Kondo ins
Externí odkaz:
http://arxiv.org/abs/1811.01642
Autor:
Kirchner, Stefan, Paschen, Silke, Chen, Qiuyun, Wirth, Steffen, Feng, Donglai, Thompson, Joe D., Si, Qimiao
Publikováno v:
Rev. Mod. Phys. vol. 92, 011002 (2020)
Angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy (STM) have become indispensable tools in the study of correlated quantum materials. Both probe complementary aspects of the single-particle excitation spectrum. Taken
Externí odkaz:
http://arxiv.org/abs/1810.13293
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Publikováno v:
Phys. Rev. B 97, 094503 (2018)
We investigated several FeSe single crystals grown by two different methods by utilizing experimental techniques namely, resistivity, magnetoresistance, specific heat, scanning tunneling microscopy, and spectroscopy. The residual resistivity ratio (R
Externí odkaz:
http://arxiv.org/abs/1712.07898