Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Pezzini, S."'
Autor:
Ciampalini, G., Tappy, C. V. Blaga. N., Pezzini, S., Watanabe, Taniguchi, Bianco, F, Roddaro, S., Morral, A. Fontcuberta i, Fabbri, F.
Recently hBN has become an interesting platform for quantum optics due to the peculiar defect-related luminescence properties. Concomitantly, hBN was established as the ideal insulating support for realizing 2D materials device, where, on the contrar
Externí odkaz:
http://arxiv.org/abs/2203.11543
Autor:
Müller, C. S. A., Khouri, T., van Delft, M. R., Pezzini, S., Hsu, Y. -T., Ayres, J., Breitkreiz, M., Schoop, L. M., Carrington, A., Hussey, N. E., Wiedmann, S.
Publikováno v:
Phys. Rev. Research 2, 023217 (2020)
Unambiguous and complete determination of the Fermi surface is a primary step in understanding the electronic properties of topical metals and semi-metals, but only in a relatively few cases has this goal been realized. In this work, we present a sys
Externí odkaz:
http://arxiv.org/abs/2002.04379
Autor:
Pezzini, S., Wiedmann, S., Mishchenko, A., Holwill, M., Gorbachev, R., Ghazaryan, D., Novoselov, K. S., Zeitler, U.
Publikováno v:
Phys. Rev. B 99, 045440 (2019)
We report on high-field magnetotransport (B up to 35 T) on a gated superlattice based on single-layer graphene aligned on top of hexagonal boron nitride. The large-period moir\'e modulation (15 nm) enables us to access the Hofstadter spectrum in the
Externí odkaz:
http://arxiv.org/abs/1902.01298
The motivation to search for signatures of superconductivity in Weyl semi-metals and other topological phases lies in their potential for hosting exotic phenomena such as nonzero-momentum pairing or the Majorana fermion, a viable candidate for the ul
Externí odkaz:
http://arxiv.org/abs/1808.09702
Autor:
Khouri, T., Pezzini, S., Bendias, M., Leubner, P., Zeitler, U., Hussey, N. E., Buhmann, H., Molenkamp, L. W., Titov, M., Wiedmann, S.
Publikováno v:
Phys. Rev. B 99, 075303 (2019)
In this study we have measured the magnetoresistance response of inverted HgTe quantum wells in the presence of a large parallel magnetic field up to 33 T is applied. We show that in quantum wells with inverted band structure a monotonically decreasi
Externí odkaz:
http://arxiv.org/abs/1808.02268
Autor:
van Delft, M. R., Pezzini, S., Khouri, T., Mueller, C. S. A., Breitkreiz, M., Schoop, L. M., Carrington, A., Hussey, N. E., Wiedmann, S.
Publikováno v:
Phys. Rev. Lett. 121, 256602 (2018)
We report a study of quantum oscillations in the high-field magneto-resistance of the nodal-line semimetal HfSiS. In the presence of a magnetic field up to 31 T parallel to the c-axis, we observe quantum oscillations originating both from orbits of i
Externí odkaz:
http://arxiv.org/abs/1806.10592
Autor:
Kumar, R. Krishna, Mishchenko, A., Chen, X., Pezzini, S., Auton, G. H., Ponomarenko, L. A., Zeitler, U., Eaves, L., Fal'ko, V. I., Geim, A. K.
Publikováno v:
Proc. Natl. Acad. Sci. (2018)
Graphene superlattices were shown to exhibit high-temperature quantum oscillations due to periodic emergence of delocalized Bloch states in high magnetic fields such that unit fractions of the flux quantum pierce a superlattice unit cell. Under these
Externí odkaz:
http://arxiv.org/abs/1804.09476
Autor:
de Vries, E. K., Pezzini, S., Meijer, M. J., Koirala, N., Salehi, M., Moon, J., Oh, S., Wiedmann, S., Banerjee, T.
Publikováno v:
Physical Review B 96, 045433 (2017)
Topological insulators are ideally represented as having an insulating bulk with topologically protected, spin-textured surface states. However, it is increasingly becoming clear that these surface transport channels can be accompanied by a finite co
Externí odkaz:
http://arxiv.org/abs/1707.08921
Autor:
Pezzini, S., van Delft, M. R., Schoop, L., Lotsch, B., Carrington, A., Katsnelson, M. I., Hussey, N. E., Wiedmann, S.
Publikováno v:
Nature Physics volume 14, pages 178-183 (2018)
The topological properties of fermions arise from their low-energy Dirac-like band dispersion and associated chiralities. Initially confined to points, extensions of the Dirac dispersion to lines and even loops have now been uncovered and semimetals
Externí odkaz:
http://arxiv.org/abs/1701.09119
Autor:
Bandurin, D. A., Tyurnina, A. V., Yu, G. L., Mishchenko, A., Zolyomi, V., Morozov, S. V., Kumar, R. Krishna, Gorbachev, R. V., Kudrynskyi, Z. R., Pezzini, S., Kovalyuk, Z. D., Zeitler, U., Novoselov, K. S., Patane, A., Eaves, L., Grigorieva, I. V., Fal'ko, V. I., Geim, A. K., Cao, Y.
Publikováno v:
Nature Nanotechnology 12, 223-227 (2016)
A decade of intense research on two-dimensional (2D) atomic crystals has revealed that their properties can differ greatly from those of the parent compound. These differences are governed by changes in the band structure due to quantum confinement a
Externí odkaz:
http://arxiv.org/abs/1608.08950