Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Martin Drienovsky"'
Autor:
Robin Huber, Max-Niklas Steffen, Martin Drienovsky, Andreas Sandner, Kenji Watanabe, Takashi Taniguchi, Daniela Pfannkuche, Dieter Weiss, Jonathan Eroms
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Experiments in a tunable graphene superlattice show that the unusual 1/B periodic resistance oscillations at high temperatures in the energy spectrum of electrons in a 2D periodic potential, known as the Hofstadter butterfly, coexist with oscillation
Externí odkaz:
https://doaj.org/article/fcc4e254b5aa4e82ab7f80e553069753
Autor:
Robin Huber, Max-Niklas Steffen, Martin Drienovsky, Andreas Sandner, Kenji Watanabe, Takashi Taniguchi, Daniela Pfannkuche, Dieter Weiss, Jonathan Eroms
Publikováno v:
Nature communications. 13(1)
Electrons exposed to a two-dimensional (2D) periodic potential and a uniform, perpendicular magnetic field exhibit a fractal, self-similar energy spectrum known as the Hofstadter butterfly. Recently, related high-temperature quantum oscillations (Bro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::967197f28c476ebdc20fe41fc88beedc
https://pubmed.ncbi.nlm.nih.gov/35606355
https://pubmed.ncbi.nlm.nih.gov/35606355
Autor:
Martin Drienovsky, Jonathan Eroms, Robin Huber, Ming-Hao Liu, Szu Chao Chen, Takashi Taniguchi, Klaus Richter, Kenji Watanabe, Dieter Weiss, Andreas Sandner
We report an efficient technique to induce gate-tunable two-dimensional superlattices in graphene by the combined action of a back gate and a few-layer graphene patterned bottom gate complementary to existing methods. The patterned gates in our appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4806a70591e9735bce2ec44e730d0f5
Autor:
Vasily V. Bel'kov, Martin Drienovsky, V. Yu. Kachorovskii, Jonathan Eroms, Sergey Ganichev, Dieter Weiss, Leonid Golub, Stefan Hubmann
We report on the observation of the magnetic quantum ratchet effect in graphene with a lateral dual-grating top gate (DGG) superlattice. We show that the THz ratchet current exhibits sign-alternating magneto-oscillations due to the Shubnikov-de Haas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b94a7bede1057eb8d72caac8225c8c3e
Autor:
Jonathan Eroms, Ming-Hao Liu, Takashi Taniguchi, Martin Drienovsky, Klaus Richter, Kenji Watanabe, Dieter Weiss, Andreas Sandner, Jonas Joachimsmeyer
Publikováno v:
Physical review letters. 121(2)
We report the experimental observation of commensurability oscillations (COs) in 1D graphene superlattices. The widely tunable periodic potential modulation in hBN encapsulated graphene is generated via the interplay of nanopatterned few layer graphe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6a84d8e7840039332299a9ab036b9d6
https://pubmed.ncbi.nlm.nih.gov/30085762
https://pubmed.ncbi.nlm.nih.gov/30085762
Autor:
Takashi Taniguchi, Martin Drienovsky, Tobias Völkl, Dieter Weiss, Kenji Watanabe, Jonathan Eroms, Tobias Rockinger
We use a van-der-Waals pickup technique to fabricate different heterostructures containing WSe$_2$(WS$_2$) and graphene. The heterostructures were structured by plasma etching, contacted by one-dimensional edge contacts and a topgate was deposited. F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be0995057184048f65ac494a2520ca0c
Autor:
Dieter Weiss, Klaus Richter, Franz Xaver Schrettenbrunner, Fedor Tkatschenko, Jonathan Eroms, Ming-Hao Liu, Martin Drienovsky, Andreas Sandner
We report on transport properties of monolayer graphene with a laterally modulated potential profile, employing striped top gate electrodes with spacings of 100 nm to 200 nm. Tuning of top and back gate voltages gives rise to local charge carrier den
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb8bfd40ac27916824250ebc059fbb94