Zobrazeno 1 - 10
of 402
pro vyhledávání: '"Kikugawa, N"'
Autor:
Schultz, J., Lubk, A., Jerzembeck, F., Kikugawa, N., Knupfer, M., Wolf, D., Büchner, B., Fink, J.
We use momentum-dependent electron energy-loss spectroscopy in transmission to study collective charge excitations in the layer metal Sr$_2$RuO$_4$. This metal has a transition from a perfect Fermi liquid below $T\approx30\,$K into a "strange" metal
Externí odkaz:
http://arxiv.org/abs/2401.05880
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:
Sun, F., Mishra, S., McGuinness, P. H., Filipiak, Z. H., Markovic, I., Sokolov, D. A., Kikugawa, N., Orenstein, J. W., Hartnoll, S. A., Mackenzie, A. P., Sunko, V.
We describe an optical method to directly measure position-dependent thermal diffusivity of reflective single crystal samples across a broad range of temperatures for condensed matter physics research. Two laser beams are used, one as a source to loc
Externí odkaz:
http://arxiv.org/abs/2303.02017
Autor:
Suzuki, H., Wang, L., Bertinshaw, J., Strand, H. U. R., Käser, S., Krautloher, M., Yang, Z., Wentzell, N., Parcollet, O., Jerzembeck, F., Kikugawa, N., Mackenzie, A. P., Georges, A., Hansmann, P., Gretarsson, H., Keimer, B.
Publikováno v:
Nat. Commun. 14, 7042 (2023)
The unconventional superconductor Sr$_2$RuO$_4$ has long served as a benchmark for theories of correlated-electron materials. The determination of the superconducting pairing mechanism requires detailed experimental information on collective bosonic
Externí odkaz:
http://arxiv.org/abs/2212.00245
Autor:
Ghosh, Sayak, Kiely, Thomas G., Shekhter, Arkady, Jerzembeck, F., Kikugawa, N., Sokolov, Dmitry A., Mackenzie, A. P., Ramshaw, B. J.
Publikováno v:
Phys. Rev. B 106, 024520 (2022)
Recent experiments suggest that the superconducting order parameter of Sr$_2$RuO$_4$ has two components. A two-component order parameter has multiple degrees of freedom in the superconducting state that can result in low-energy collective modes or th
Externí odkaz:
http://arxiv.org/abs/2109.00041
Autor:
Ghosh, Sayak, Shekhter, Arkady, Jerzembeck, F., Kikugawa, N., Sokolov, Dmitry A., Brando, Manuel, Mackenzie, A. P., Hicks, Clifford W., Ramshaw, B. J.
Publikováno v:
Nature Physics 17, 199 (2021)
Sr$_2$RuO$_4$ has stood as the leading candidate for a spin-triplet superconductor for 26 years. Recent NMR experiments have cast doubt on this candidacy, however, and it is difficult to find a theory of superconductivity that is consistent with all
Externí odkaz:
http://arxiv.org/abs/2002.06130
Autor:
Marković, I., Watson, M. D., Clark, O. J., Mazzola, F., Morales, E. Abarca, Hooley, C. A., Rosner, H., Polley, C. M., Balasubramanian, T., Mukherjee, S., Kikugawa, N., Sokolov, D. A., Mackenzie, A. P., King, P. D. C.
Polar distortions in solids give rise to the well-known functionality of switchable macroscopic polarisation in ferroelectrics and, when combined with strong spin-orbit coupling, can mediate giant spin splittings of electronic states. While typically
Externí odkaz:
http://arxiv.org/abs/2001.09499
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
Autor:
Li, Y. -S., Kikugawa, N., Sokolov, D. A., Jerzembeck, F., Gibbs, A. S., Maeno, Y., Hicks, C. W., Nicklas, M., Mackenzie, A. P.
A key question regarding the unconventional superconductivity of Sr$_2$RuO$_4$ remains whether the order parameter is single- or two-component. Under a hypothesis of two-component superconductivity, uniaxial pressure is expected to lift their degener
Externí odkaz:
http://arxiv.org/abs/1906.07597