Zobrazeno 1 - 10
of 209
pro vyhledávání: '"Kikugawa, Naoki"'
Autor:
Jerzembeck, Fabian, Li, You-Sheng, Palle, Grgur, Hu, Zhenhai, Biderang, Mehdi, Kikugawa, Naoki, Sokolov, Dmitry A., Ghosh, Sayak, Ramshaw, Brad J., Scaffidi, Thomas, Nicklas, Michael, Schmalian, Jörg, Mackenzie, Andrew P., Hicks, Clifford W.
Publikováno v:
Phys. Rev/ B 110, 064514 (2024)
There is considerable evidence that the superconductivity of Sr2RuO4 has two components. Among this evidence is a jump in the shear elastic modulus $c_{66}$ at the critical temperature $T_c$, observed in ultrasound measurements. Such a jump is forbid
Externí odkaz:
http://arxiv.org/abs/2406.04717
Autor:
Nishinakayama, Rei, Sato, Yoshiki J., Yamanaka, Takayoshi, Maeno, Yoshiteru, Yaguchi, Hiroshi, Kikugawa, Naoki, Okazaki, Ryuji
Publikováno v:
Phys. Rev. Research 6, 023222 (2024)
The layered perovskite Sr$_2$RuO$_4$ serves as a model material of the two-dimensional (2D) Fermi liquid but also exhibits various emergent phenomena including the non-Fermi-liquid (NFL) behavior under external perturbations such as uniaxial pressure
Externí odkaz:
http://arxiv.org/abs/2404.11300
Autor:
O'Neil, Caitlin I., Hu, Zhenhai, Kikugawa, Naoki, Sokolov, Dmitry A., Mackenzie, Andrew P., Noad, Hilary M. L., Gati, Elena
We report on a new technique for measuring the dynamic Young's modulus, $E$, of quantum materials at low temperatures as a function of static tuning strain, $\epsilon$, in piezoactuator-driven pressure cells. In addition to a static tuning of stress
Externí odkaz:
http://arxiv.org/abs/2403.17519
Autor:
Ruf, Jacob P., Noad, Hilary M. L., Grasset, Romain, Miao, Ludi, Zhakina, Elina, McGuinness, Philippa H., Nair, Hari P., Schreiber, Nathaniel J., Kikugawa, Naoki, Sokolov, Dmitry, Konczykowski, Marcin, Schlom, Darrell G., Shen, Kyle M., Mackenzie, Andrew P.
In bulk Sr$_{2}$RuO$_{4}$, the strong sensitivity of the superconducting transition temperature $T_{\text{c}}$ to nonmagnetic impurities provides robust evidence for a superconducting order parameter that changes sign around the Fermi surface. In sup
Externí odkaz:
http://arxiv.org/abs/2402.19454
Autor:
Terashima, Taichi, Tokumoto, Yuki, Hamano, Kotaro, Konoike, Takako, Kikugawa, Naoki, Edagawa, Keiichi
Publikováno v:
npj Quantum Materials 9, 56 (2024)
Superconductivity in quasicrystals poses a new challenge in condensed matter physics. We measured the resistance and ac magnetic susceptibility of a Ta$_{1.6}$Te dodecagonal quasicrystal, which is superconducting below $T_c \sim$ 1 K. We show that th
Externí odkaz:
http://arxiv.org/abs/2401.02079
Autor:
Mueller, Eli, Iguchi, Yusuke, Jerzembeck, Fabian, Rodriguez, Jorge O., Romanelli, Marisa, Abarca-Morales, Edgar, Markou, Anastasios, Kikugawa, Naoki, Sokolov, Dmitry A., Oh, Gwansuk, Hicks, Clifford W., Mackenzie, Andrew P., Maeno, Yoshiteru, Madhavan, Vidya, Moler, Kathryn A.
In the unconventional superconductor Sr$_2$RuO$_4$, uniaxial stress along the $[100]$ direction tunes the Fermi level through a Van Hove singularity (VHS) in the density of states, causing a strong enhancement of the superconducting critical temperat
Externí odkaz:
http://arxiv.org/abs/2312.05130
Anomalous Hall effect with plateaus observed in a magnetic Weyl semimetal NdAlGe at low temperatures
Publikováno v:
Phys. Rev. B 109, 035143 (2024)
In the $R$Al(Si,Ge) ($R$: lanthanides) family, both spatial inversion and time-reversal symmetries are broken. This may offer opportunities to study Weyl-fermion physics in nontrivial spin structures emerging from a noncentrosymmetric crystal structu
Externí odkaz:
http://arxiv.org/abs/2312.00222
Autor:
Noad, Hilary M. L., Ishida, Kousuke, Li, You-Sheng, Gati, Elena, Stangier, Veronika C., Kikugawa, Naoki, Sokolov, Dmitry A., Nicklas, Michael, Kim, Bongjae, Mazin, Igor I., Garst, Markus, Schmalian, Jörg, Mackenzie, Andrew P., Hicks, Clifford W.
The interplay of electronic and structural degrees of freedom in solids is a topic of intense research. Experience and intuition suggest that structural changes drive conduction electron behavior, because the large number of valence electrons dominat
Externí odkaz:
http://arxiv.org/abs/2306.17835
Autor:
Khasanov, Rustem, Ramires, Aline, Grinenko, Vadim, Shipulin, Ilya, Kikugawa, Naoki, Sokolov, D. A., Maeno, Yoshiteru, Luetkens, Hubertus, Guguchia, Zurab
Publikováno v:
Phys. Rev. Lett. 131, 236001 (2023)
We report on measurements of the in-plane magnetic penetration depth ($\lambda_{\rm ab}$) in single crystals of Sr$_2$RuO$_4$ down to $\simeq 0.015$ K by means of muon-spin rotation/relaxation. The linear temperature dependence of $\lambda^{-2}_{\rm
Externí odkaz:
http://arxiv.org/abs/2305.11156
Autor:
Morales, Edgar Abarca, Siemann, Gesa-R., Zivanovic, Andela, Murgatroyd, Philip A. E., Markovic, Igor, Edwards, Brendan, Hooley, Chris A., Sokolov, Dmitry A., Kikugawa, Naoki, Cacho, Cephise, Watson, Matthew D., Kim, Timur K., Hicks, Clifford W., Mackenzie, Andrew P., King, Phil D. C.
Publikováno v:
Phys. Rev. Lett. 130, 096401 (2023)
We report the evolution of the electronic structure at the surface of the layered perovskite Sr$_2$RuO$_4$ under large in-plane uniaxial compression, leading to anisotropic $B_{1g}$ strains of ${\varepsilon_{xx}-\varepsilon_{yy}=-0.9\pm0.1\%}$. From
Externí odkaz:
http://arxiv.org/abs/2303.00390