Zobrazeno 1 - 10
of 1 081
pro vyhledávání: '"A. Akrap"'
Autor:
Nasrallah, S., Santos-Cottin, D., Mardele, F. Le, Mohelsky, I., Wyzula, J., Aksamovic, L., Sacer, P., Barrett, J. W. H., Galloway, W., Rigaux, K., Guo, F., Puppin, M., Zivkovic, I., Dil, J. H., Novak, M., Barisic, N., Homes, C. C., Orlita, M., Akrap, Ana
In this study, we identify EuCd2X2 (for X = P, As, Sb) as a series of magnetic semiconductors. We examine how the band gap of the series responds to X changing from phosphorus (P), to arsenic (As), and finally antimony (Sb). We characterize the sampl
Externí odkaz:
http://arxiv.org/abs/2409.18722
Electron-magnon coupling at the interface between a normal metal and a magnetically ordered insulator modifies the electrical conductivity of the normal metal, an effect known as spin-Hall magnetoresistance. It can also facilitate magnon-mediated cur
Externí odkaz:
http://arxiv.org/abs/2408.13099
Autor:
Santos-Cottin, D., Nasrallah, S., Capitani, F., Simon, P., Homes, C. C., Akrap, A., Lobo, R. P. S. M.
We measured the far-infrared reflectivity of a KH2PO4 single crystal up to pressures of 2 GPa in the ferroelectric and paraelectric phases. We find that the nu4 vibrational mode of the PO4 tetrahedron is strongly affected by the applied pressure. At
Externí odkaz:
http://arxiv.org/abs/2402.04998
Autor:
Santos-Cottin, D., Mohelský, I., Wyzula, J., Mardelé, F. Le, Kapon, I., Nasrallah, S., BarišIć, N., Živković, I., Soh, J. R., Guo, F., Rigaux, K., Puppin, M., Dil, J. H., Gudac, B., Rukelj, Z., Novak, M., Kuzmenko, A. B., Homes, C. C., Dietl, Tomasz, Orlita, M., Akrap, Ana
Publikováno v:
Phys. Rev. Lett. 131, 186704 (2023)
EuCd$_2$As$_2$ is now widely accepted as a topological semimetal in which a Weyl phase is induced by an external magnetic field. We challenge this view through firm experimental evidence using a combination of electronic transport, optical spectrosco
Externí odkaz:
http://arxiv.org/abs/2301.08014
Autor:
Mardelé, F. Le, Wyzula, J., Mohelsky, I., Nasrallah, S., Loh, M., David, S. Ben, Toledano, O., Tolj, D., Novak, M., Eguchi, G., Paschen, S., Barišić, N., Chen, J., Kimura, A., Orlita, M., Rukelj, Z., Akrap, A., Santos-Cottin, D.
TlBiSSe is a rare realization of a 3D semimetal with a conically dispersing band that has an optical response which is well isolated from other contributions in a broad range of photon eneries. We report optical and magneto-optical spectroscopy on th
Externí odkaz:
http://arxiv.org/abs/2301.06389
Using Landau level spectroscopy, we determine the temperature dependence of the energy band gap in zirconium pentatelluride (ZrTe$_5$). We find that the band gap reaches $E_g=(5 \pm 1)$ meV at low temperatures and increases monotonously when the temp
Externí odkaz:
http://arxiv.org/abs/2211.14597
Publikováno v:
Soft Matter, 2023,19, 3652-3660
We investigate the local fluctuations of filamentous actin (F-actin), with focus on the skeletal thin filament, using single-particle optical trapping interferometry. This experimental technique allows us to detect the Brownian motion of a tracer bea
Externí odkaz:
http://arxiv.org/abs/2209.07159
We study the high-frequency micro-mechanical response of suspensions composed by cardiac and skeletal muscle myosin by optical trapping interferometry. We observe that in low ionic strength solutions upon the addition of magnesium adenosine triphosph
Externí odkaz:
http://arxiv.org/abs/2209.07160
Autor:
Gourgout, Adrien, Leroux, Maxime, Smirr, Jean-Loup, Massoudzadegan, Maxime, Lobo, Ricardo P. S. M., Vignolles, David, Proust, Cyril, Berger, Helmuth, Li, Qiang, Gu, Genga, Homes, Christopher C., Akrap, Ana, Fauqué, Benoît
The ultra-quantum limit is achieved when a magnetic field confines an electron gas in its lowest spin-polarised Landau level. Here we show that in this limit, electron doped ZrTe$_5$ shows a metal-insulator transition followed by a sign change of the
Externí odkaz:
http://arxiv.org/abs/2205.01622
Autor:
Kumar, C. M. N., Akrap, Ana, Homes, Chris C., Martino, Edoardo, Klebel-Knobloch, Benjamin, Tabis, Wojciech, Barišić, Osor S., Sunko, Denis K., Barišić, Neven
Publikováno v:
Phys. Rev. B 107, 144515 (2023)
Understanding the physical properties of unconventional superconductors as well as of other correlated materials presents a formidable challenge. Their unusual evolution with doping, frequency, and temperature has frequently led to non-Fermi-liquid (
Externí odkaz:
http://arxiv.org/abs/2204.10284