Zobrazeno 1 - 10
of 177
pro vyhledávání: '"Luehmann, T."'
Autor:
Morris, I. M., Lühmann, T., Klink, K., Crooks, L., Hardeman, D., Twitchen, D. J., Pezzagna, S., Meijer, J., Nicley, S. S., Becker, J. N.
The negatively charged nickel vacancy center (NiV$^-$) in diamond is a promising spin qubit candidate with predicted inversion symmetry, large ground state spin orbit splitting to limit phonon-induced decoherence, and emission in the near-infrared. H
Externí odkaz:
http://arxiv.org/abs/2411.07196
Autor:
Khanenko, P., Hafner, D., Semeniuk, K., Banda, J., Luehmann, T., Baertl, F., Kotte, T., Wosnitza, J., Zwicknagl, G., Geibel, C., Landaeta, J. F., Khim, S., Hassinger, E., Brando, M.
Unconventional superconductivity in heavy-fermion systems appears often near magnetic quantum critical points (QCPs). This seems to be the case also for CeRh2As2 (Tc $\approx$ 0.31 K). CeRh2As2 shows two superconducting (SC) phases, SC1 and SC2, for
Externí odkaz:
http://arxiv.org/abs/2409.11894
Conventional type-II superconductivity in locally non-centrosymmetric LaRh$_2$As$_2$ single crystals
Autor:
Landaeta, J. F., Leon, A. M., Zwickel, S., Lühmann, T., Brando, M., Geibel, C., Eljaouhari, E. -O., Rosner, H., Zwicknagl, G., Hassinger, E., Khim, S.
Publikováno v:
Phys. Rev. B 106, 045107 (2022)
We report on the observation of superconductivity in LaRh$_2$As$_2$, which is the analogue without $f$-electrons of the heavy-fermion system with two superconducting phases CeRh$_2$As$_2$. A zero-resistivity transition, a specific-heat jump and a dro
Externí odkaz:
http://arxiv.org/abs/2204.07740
Autor:
Hafner, D., Khanenko, P., Eljaouhari, E. -O., Küchler, R., Banda, J., Bannor, N., Lühmann, T., Landaeta, J. F., Mishra, S., Sheikin, I., Hassinger, E., Khim, S., Geibel, C., Zwicknagl, G., Brando, M.
Publikováno v:
Phys. Rev. X 12, 011023 (2022)
CeRh2As2 has recently been reported to be a rare case of multi-phase unconventional superconductor [S. Khim et al., arXiv:2101.09522] close to a quantum critical point (QCP). Here, we present a comprehensive study of its normal state properties and o
Externí odkaz:
http://arxiv.org/abs/2108.06267
Autor:
Tchernij, S. Ditalia, Lühmann, T., Corte, E., Sardi, F., Picollo, F., Traina, P., Brajkovic, M., Crnjac, A., Pezzagna, S., Degiovanni, I. P., Moreva, E., Aprà, P., Olivero, P., Siketić, Z., Meijer, J., Genovese, M., Forneris, J.
We report on the creation and characterization of the luminescence properties of high-purity diamond substrates upon F ion implantation and subsequent thermal annealing. Their room-temperature photoluminescence emission consists of a weak emission li
Externí odkaz:
http://arxiv.org/abs/2009.13385
Akademický článek
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Autor:
Tchernij, S. Ditalia, Lühmann, T., Forneris, J., Herzig, T., Küpper, J., Damin, A., Santonocito, S., Traina, P., Moreva, E., Celegato, F., Pezzagna, S., Degiovanni, I. P., Jakšić, M., Genovese, M., Meijer, J., Olivero, P.
We report on the creation and characterization of Pb-related color centers in diamond upon ion implantation and subse- quent thermal annealing. Their optical emission in photoluminescence (PL) regime consists of an articulated spectrum with intense e
Externí odkaz:
http://arxiv.org/abs/1806.01608
Publikováno v:
In Diamond & Related Materials March 2022 123
Autor:
Barzola-Quiquia, J., Lühmann, T., Wunderlich, R., Stiller, M., Zoraghi, M., Meijer, J., Esquinazi, P., Böttner, J., Estrela-Lopis, I.
Micrometer width and nanometer thick wires with different shapes were produced $\approx 3~\upmu$m below the surface of a diamond crystal using a microbeam of He$^+$ ions with 1.8~MeV energy. Initial samples are amorphous and after annealing at $T\app
Externí odkaz:
http://arxiv.org/abs/1702.05409
Autor:
Zoraghi, M., Barzola-Quiquia, J., Stiller, M., Setzer, A., Esquinazi, P., Kloess, G. H., Muenster, T., Lühmann, T., Estrela-Lopis, I.
Publikováno v:
Phys. Rev. B 95, 045308 (2017)
The electrical, in-plane resistance as a function of temperature $R(T)$ of bulk and mesoscopic thin graphite flakes obtained from the same batch was investigated. Samples thicker than $\sim 30$ nm show metalliclike contribution in a temperature range
Externí odkaz:
http://arxiv.org/abs/1603.06365