Zobrazeno 1 - 10
of 396
pro vyhledávání: '"Opletal P"'
Autor:
Tokiwa, Y., Opletal, . P., Sakai, H., Kambe, S., Yamamoto, E., Kimata, M., Awaji, S., Sasaki, T., Aoki, D., Haga, Y., Tokunaga, Y.
Publikováno v:
Phys. Rev. B 109, L140502 (2024)
The normal-conducting state of the superconductor UTe$_2$ is studied by entropy analysis for magnetic fields along the $b$-axis, obtained from magnetization using the relation $(\partial M/\partial T)_B=(\partial S/\partial B)_T$. We observe a strong
Externí odkaz:
http://arxiv.org/abs/2402.16258
Autor:
Tokunaga, Yo, Sakai, Hironori, Kambe, Shinsaku, Opletal, Petr, Tokiwa, Yoshifumi, Haga, Yoshinori, Kitagawa, Shunsaku, Ishida, Kenji, Aoki, Dai, Knebel, Georg, Lapertot, Gerard, Krämer, Steffen, Horvatić, Mladen
Our measurements of $^{125}$Te NMR relaxations reveal an enhancement of electronic spin fluctuations above $\mu_0H^*\sim15$ T, leading to their divergence in the vicinity of the metamagnetic transition at $\mu_0H_m\approx35$ T, below which field-rein
Externí odkaz:
http://arxiv.org/abs/2307.10724
Autor:
Vališka, Michal, Haidamak, Tetiana, Cabala, Andrej, Pospíšil, Jiří, Bastien, Gaël, Yanagisawa, Tatsuya, Opletal, Petr, Sakai, Hironori, Haga, Yoshinori, Miyata, Atsuhiko, Zherlitsyn, Sergei, Sechovský, Vladimír, Prokleška, Jan
Publikováno v:
Physical Review Materials 8, 094415 (2024)
The first-order transition line in the \textit{H-T} phase diagram of itinerant electron metamagnets terminates at the critical end point-analogous to the critical point on the gas-liquid condensation line in the \textit{p-T} phase diagram. To unravel
Externí odkaz:
http://arxiv.org/abs/2307.01884
Autor:
Suetsugu, S., Shimomura, M., Kamimura, M., Asaba, T., Asaeda, H., Kosuge, Y., Sekino, Y., Ikemori, S., Kasahara, Y., Kohsaka, Y., Lee, M., Yanase, Y., Sakai, H., Opletal, P., Tokiwa, Y., Haga, Y., Matsuda, Y.
Spin-triplet superconductors provide an ideal platform for realizing topological superconductivity with emergent Majorana quasiparticles. The promising candidate is the recently discovered superconductor UTe$ _2$, but the symmetry of the superconduct
Externí odkaz:
http://arxiv.org/abs/2306.17549
Autor:
Tokiwa, Y., Kambe, H. Sakai. S., Opletal, P., Yamamoto, E., Kimata, M., Awaji, S., Sasaki, T., Yanase, Y., Haga, Y., Tokunaga, Y.
Publikováno v:
Phys. Rev. B 108, 144502 (2023)
The vortex dynamics in the spin-triplet superconductor, UTe$_2$, are studied by measuring the DC electrical resistivity with currents along the $a$-axis under magnetic fields along the $b$-axis. Surprisingly, we have discovered an island region of lo
Externí odkaz:
http://arxiv.org/abs/2305.17840
Autor:
Eaton, A. G., Weinberger, T. I., Popiel, N. J. M., Wu, Z., Hickey, A. J., Cabala, A., Pospisil, J., Prokleska, J., Haidamak, T., Bastien, G., Opletal, P., Sakai, H., Haga, Y., Nowell, R., Benjamin, S. M., Sechovsky, V., Lonzarich, G. G., Grosche, F. M., Valiska, M.
Publikováno v:
Nature Communications 15, 223 (2024)
The heavy fermion paramagnet UTe$_2$ exhibits numerous characteristics of spin-triplet superconductivity. Efforts to understand the microscopic details of this exotic superconductivity have been impeded by uncertainty regarding the underlying electro
Externí odkaz:
http://arxiv.org/abs/2302.04758
Autor:
Ishihara, K., Kobayashi, M., Imamura, K., Konczykowski, M., Sakai, H., Opletal, P., Tokiwa, Y., Haga, Y., Hashimoto, K., Shibauchi, T.
Publikováno v:
Phys. Rev. Research 5, L022002 (2023)
The paramagnetic spin-triplet superconductor UTe$_2$ has attracted significant attention because of its exotic superconducting properties including an extremely high upper critical field and possible chiral superconducting states. Recently, ultraclea
Externí odkaz:
http://arxiv.org/abs/2301.04801
Publikováno v:
Small Science, Vol 4, Iss 10, Pp n/a-n/a (2024)
The surface roughness of metal nanoparticles is known to be influential toward their properties, but the quantification of surface roughness is challenging. Given the recent availability of large‐scale simulated data and tools for the computation o
Externí odkaz:
https://doaj.org/article/f43bf5e4646c49898633b3dcfcd619d0
Autor:
Opletal, Petr, Sakai, Hironori, Haga, Yoshinori, Tokiwa, Yoshifumi, Yamamoto, Etsuji, Kambe, Shinsaku, Tokunaga, Yo
We investigate the physical properties of a single crystal of uranium telluride U$_{7}$Te$_{12}$. We have confirmed that U$_{7}$Te$_{12}$ crystallizes in the hexagonal structure with three nonequivalent crystallographic uranium sites. The paramagneti
Externí odkaz:
http://arxiv.org/abs/2211.16760
Autor:
Tokiwa, Y., Opletal, P., Sakai, H., Kubo, K., Yamamoto, E., Kambe, S., Kimata, M., Awaji, S., Sasaki, T., Aoki, D., Tokunaga, Y., Haga, Y.
Influence of metamagnetism on superconductivity is studied for the field along an easy $a$-axis by AC magnetic susceptibility, magnetization, and magnetocaloric effect (MCE) in UTe$_2$. The improvement of crystal quality leads to an upward curvature
Externí odkaz:
http://arxiv.org/abs/2210.11769