Zobrazeno 1 - 10
of 203
pro vyhledávání: '"Hassinger E"'
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
Autor:
Landaeta, J. F., Semeniuk, K., Aretz, J., Shirer, K., Sokolov, D. A., Kikugawa, N., Maeno, Y., Bonalde, I., Schmalian, J., Mackenzie, A. P., Hassinger, E.
By determining the superconducting lower and upper critical fields $H_\mathrm{c1}(T)$ and $H_\mathrm{c2}(T)$, respectively, in a high-purity spherical Sr$_2$RuO$_4$ sample via ac-susceptibility measurements, we obtain the temperature dependence of th
Externí odkaz:
http://arxiv.org/abs/2312.05129
Autor:
Sun, F., Mishra, S., Stockert, U., Daou, R., Kikugawa, N., Perry, R. S., Hassinger, E., Hartnoll, S. A., Mackenzie, A. P., Sunko, V.
In many physical situations in which many-body assemblies exist at temperature $T$, a characteristic quantum-mechanical time scale of approximately $\hbar/k_{B}T$ can be identified in both theory and experiment, leading to speculation that it may be
Externí odkaz:
http://arxiv.org/abs/2310.11796
Autor:
Banda, J., Hafner, D., Landaeta, J. F., Hassinger, E., Mitsumoto, K., Giovannini, M., Sereni, J. G., Geibel, C., Brando, M.
We present here a rare example of electronuclear quantum criticality in a metal. The compound YbCu4.6Au0.4 is located at an unconventional quantum critical point (QCP). In this material the relevant Kondo and RKKY exchange interactions are very weak,
Externí odkaz:
http://arxiv.org/abs/2308.15294
Autor:
Landaeta, J. F., Khanenko, P., Cavanagh, D. C., Geibel, C., Khim, S., Mishra, S., Sheikin, I., Brydon, P. M. R., Agterberg, D. F., Brando, M., Hassinger, E.
Publikováno v:
Phys. Rev. X 12, 031001 (2022)
CeRh$_2$As$_2$ is an unconventional superconductor with multiple superconducting phases and $T_\mathrm{c} = 0.26$ K. When $H\parallel c$, it shows a field-induced transition at $\mu_0H^* = 4$ T from a low-field superconducting state SC1 to a high-fie
Externí odkaz:
http://arxiv.org/abs/2204.07975
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:
Naumann, M., Arnold, F., Medvecka, Z., Wu, S. -C., Suess, V., Schmidt, M., Yan, B., Huber, N., Worch, L., Wilde, M. A., Felser, C., Sun, Y., Hassinger, E.
The noncentrosymmetric transition metal monopnictides NbP, TaP, NbAs and TaAs are a family of Weyl semimetals in which pairs of protected linear crossings of spin-resolved bands occur. These so-called Weyl nodes are characterized by integer topologic
Externí odkaz:
http://arxiv.org/abs/2105.12090
Autor:
Khim, S., Landaeta, J. F., Banda, J., Bannor, N., Brando, M., Brydon, P. M. R., Hafner, D., Küchler, R., Cardoso-Gil, R., Stockert, U., Mackenzie, A. P., Agterberg, D. F., Geibel, C., Hassinger, E.
Publikováno v:
Science 373, 1012 (2021)
We report the discovery of two-phase unconventional superconductivity in CeRh$_2$As$_2$. Using thermodynamic probes, we establish that the superconducting critical field of its high-field phase is as high as 14 T, remarkable in a material whose trans
Externí odkaz:
http://arxiv.org/abs/2101.09522
Autor:
Arnold, F., Naumann, M., Rosner, H., Kikugawa, N., Graf, D., Balicas, L., Terashima, T., Uji, S., Takatsu, H., Khim, S., Mackenzie, A. P., Hassinger, E.
Publikováno v:
Phys. Rev. B 101, 195101 (2020)
The delafossite series of layered oxides include some of the highest conductivity metals ever discovered. Of these, PtCoO2, with a room temperature resistivity of 1.8 microOhmcm for in-plane transport, is the most conducting of all. The high conducti
Externí odkaz:
http://arxiv.org/abs/1912.13071