Zobrazeno 1 - 10
of 552
pro vyhledávání: '"Folkert K"'
Autor:
Giulia Zheng, Elías Portolés, Alexandra Mestre-Torà, Marta Perego, Takashi Taniguchi, Kenji Watanabe, Peter Rickhaus, Folkert K. de Vries, Thomas Ihn, Klaus Ensslin, Shuichi Iwakiri
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p L012051 (2024)
Magic-angle twisted bilayer graphene (MATBG) combines in one single material different phases such as insulating, metallic, and superconducting. These phases and their in situ tunability make MATBG an important platform for the fabrication of superco
Externí odkaz:
https://doaj.org/article/4604f1a5149c4e90844dba270c6cd1ef
Autor:
Chung Ting Ke, Christian M. Moehle, Folkert K. de Vries, Candice Thomas, Sara Metti, Charles R. Guinn, Ray Kallaher, Mario Lodari, Giordano Scappucci, Tiantian Wang, Rosa E. Diaz, Geoffrey C. Gardner, Michael J. Manfra, Srijit Goswami
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
Hybrid superconductor-semiconductor devices offer a promising platform for topological superconductivity. Here, Ke and Moehle et al. create ballistic Josephson junctions in InSb quantum wells and use magnetic and electric fields to control their free
Externí odkaz:
https://doaj.org/article/d42dd0d573484f19a7ed34eb3a9f56d9
Autor:
Portolés, Elías, Perego, Marta, Volkov, Pavel A., Toschini, Mathilde, Kemna, Yana, Mestre-Torà, Alexandra, Zheng, Giulia, Denisov, Artem O., de Vries, Folkert K., Rickhaus, Peter, Taniguchi, Takashi, Watanabe, Kenji, Pixley, J. H., Ihn, Thomas, Ensslin, Klaus
Magic-Angle Twisted Bilayer Graphene shows a wide range of correlated phases which are electrostatically tunable. Despite a growing knowledge of the material, there is yet no consensus on the microscopic mechanisms driving its superconducting phase.
Externí odkaz:
http://arxiv.org/abs/2405.06793
Autor:
Hao Zhang, Önder Gül, Sonia Conesa-Boj, Michał P. Nowak, Michael Wimmer, Kun Zuo, Vincent Mourik, Folkert K. de Vries, Jasper van Veen, Michiel W. A. de Moor, Jouri D. S. Bommer, David J. van Woerkom, Diana Car, Sébastien R Plissard, Erik P.A.M. Bakkers, Marina Quintero-Pérez, Maja C. Cassidy, Sebastian Koelling, Srijit Goswami, Kenji Watanabe, Takashi Taniguchi, Leo P. Kouwenhoven
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
Disorder has been a prime challenge to study the topological properties in a hybrid system. Here, Zhanget al. report ballistic superconductivity in InSb nanowires interfacing with a NbTiN superconductor, paving the way for disorder-free Majorana devi
Externí odkaz:
https://doaj.org/article/05b40ff9f8e14523bd5d92afecabeadc
Autor:
Michele Masseroni, Tim Davatz, Riccardo Pisoni, Folkert K. de Vries, Peter Rickhaus, Takashi Taniguchi, Kenji Watanabe, Vladimir Fal'ko, Thomas Ihn, Klaus Ensslin
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023047 (2021)
The low-energy band structure of few-layer MoS_{2} is relevant for a large variety of experiments ranging from optics to electronic transport. Its characterization remains challenging due to complex multiband behavior. We investigate the conduction b
Externí odkaz:
https://doaj.org/article/9ca8617f63754ead8d940c56f1d4f225
Autor:
Zheng, Giulia, Portolés, Elías, Mestre-Torá, Alexandra, Perego, Marta, Taniguchi, Takashi, Watanabe, Kenji, Rickhaus, Peter, de Vries, Folkert K., Ihn, Thomas, Ensslin, Klaus, Iwakiri, Shuichi
Publikováno v:
Phys. Rev. Research 6, L012051 (2024)
Magic-angle twisted bilayer graphene (MATBG) combines in one single material different phases like insulating, metallic and superconducting. These phases and their in-situ tunability make MATBG an important platform for the fabrication of superconduc
Externí odkaz:
http://arxiv.org/abs/2312.11698
Autor:
Folkert K. de Vries, Martijn L. Sol, Sasa Gazibegovic, Roy L. M. op het Veld, Stijn C. Balk, Diana Car, Erik P. A. M. Bakkers, Leo P. Kouwenhoven, Jie Shen
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 032031 (2019)
We study superconducting quantum interference in InSb flake Josephson junctions. An even-odd effect in the amplitude and periodicity of the superconducting quantum interference pattern is found. Interestingly, the occurrence of this pattern coincides
Externí odkaz:
https://doaj.org/article/c74bc4fefee1488fad1adf89e457fd94
Autor:
de Vries, Folkert K., Slizovskiy, Sergey, Tomić, Petar, Kumar, Roshan Krishna, Garcia-Ruiz, Aitor, Zheng, Giulia, Portolés, Elías, Ponomarenko, Leonid A., Geim, Andre K., Watanabe, Kenji, Taniguchi, Takashi, Fal'ko, Vladimir, Ensslin, Klaus, Ihn, Thomas, Rickhaus, Peter
Publikováno v:
Nano Lett. 2024, 24, 2, 601
Periodic systems feature the Hofstadter butterfly spectrum produced by Brown--Zak minibands of electrons formed when magnetic field flux through the lattice unit cell is commensurate with flux quantum and manifested by magneto-transport oscillations.
Externí odkaz:
http://arxiv.org/abs/2303.06403
Autor:
Iwakiri, Shuichi, de Vries, Folkert K., Portolés, Elías, Zheng, Giulia, Taniguchi, Takashi, Watanabe, Kenji, Ihn, Thomas, Ensslin, Klaus
Publikováno v:
Nano Lett., 22, 15, 6292 (2022)
We present an electron interferometer defined purely by electrostatic gating in encapsulated bilayer graphene. This minimizes possible sample degradation introduced by conventional etching methods when preparing quantum devices. The device quality is
Externí odkaz:
http://arxiv.org/abs/2205.04081
Autor:
Portolés, Elías, Iwakiri, Shuichi, Zheng, Giulia, Rickhaus, Peter, Taniguchi, Takashi, Watanabe, Kenji, Ihn, Thomas, Ensslin, Klaus, de Vries, Folkert K.
Magic-angle twisted bilayer graphene (MATBG) hosts a number of correlated states of matter that can be tuned by electrostatic doping. Superconductivity has drawn considerable attention and the mechanism behind it is a topic of active discussion. MATB
Externí odkaz:
http://arxiv.org/abs/2201.13276