Zobrazeno 1 - 10
of 581
pro vyhledávání: '"SAKAI, HIRONORI"'
Autor:
Kinjo, Katsuki, Fujibayashi, Hiroki, Matsumura, Hiroki, Hori, Fumiya, Kitagawa, Shunsaku, Ishida, Kenji, Tokunaga, Yo, Sakai, Hironori, Kambe, Shinsaku, Nakamura, Ai, Shimizu, Yusei, Homma, Yoshiya, Li, Dexin, Honda, Fuminori, Aoki, Dai
Publikováno v:
Sci. Adv.9,eadg2736(2023)
Superconducting (SC) state has spin and orbital degrees of freedom, and spin-triplet superconductivity shows multiple SC phases due to the presence of these degrees of freedom. However, the observation of spin-direction rotation occurring inside the
Externí odkaz:
http://arxiv.org/abs/2307.15784
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
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:
Fujibayashi, Hiroki, Kinjo, Katsuki, Nakamine, Genki, Kitagawa, Shunsaku, Ishida, Kenji, Tokunaga, Yo, Sakai, Hironori, Kambe, Shinsaku, Nakamura, Ai, Shimizu, Yusei, Homma, Yoshiya, Li, Dexin, Honda, Fuminori, Aoki, Dai
Publikováno v:
J. Phys. Soc. Jpn., Vol.92, No.5, 053702 (2023)
To investigate the static and dynamic magnetic properties on the uranium-based superconductor UTe$_{2}$, we measured the NMR Knight shift $K$ and the nuclear spin-lattice relaxation rate $1/T_{1}$ in $H \parallel a$ by $^{125}$Te-NMR on a $^{125}$Te-
Externí odkaz:
http://arxiv.org/abs/2305.01218
Autor:
Matsumura, Hiroki, Fujibayashi, Hiroki, Kinjo, Katsuki, Kitagawa, Shunsaku, Ishida, Kenji, Tokunaga, Yo, Sakai, Hironori, Kambe, Shinsaku, Nakamura, Ai, Shimizu, Yusei, Homma, Yoshiya, Li, Dexin, Honda, Fuminori, Aoki, Dai
Spin susceptibility in the superconducting (SC) state was measured in the higher-quality sample of uranium-based superconductor UTe$_2$ by using Knight-shift measurements for a magnetic field $H$ along all three crystalline axes. In the higher-qualit
Externí odkaz:
http://arxiv.org/abs/2305.01200
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:
Aoki, Dai, Sakai, Hironori, Opletal, Petr, Tokiwa, Yoshifumi, Ishizuka, Jun, Yanase, Youichi, Harima, Hisatomo, Nakamura, Ai, Li, Dexin, Homma, Yoshiya, Shimizu, Yusei, Knebel, Georg, Flouquet, Jacques, Haga, Yoshinori
Publikováno v:
J. Phys. Soc. Jpn. 91, 083704 (2022)
We report the first observation of the de Haas-van Alphen (dHvA) effect in the novel spin-triplet superconductor UTe2 using high quality single crystals with the high residual resistivity ratio (RRR) over 200. The dHvA frequencies, named alpha and be
Externí odkaz:
http://arxiv.org/abs/2206.01363
Autor:
Kinjo, Katsuki, Fujibayashi, Hiroki, Nakamine, Genki, Kitagawa, Shunsaku, Ishida, Kenji, Tokunaga, Yo, Sakai, Hironori, Kambe, Shinsaku, Nakamura, Ai, Shimizu, Yusei, Homma, Yoshiya, Li, Dexin, Honda, Fuminori, Aoki, Dai
Publikováno v:
Phys. Rev. B 105, L140502 (2022)
To investigate the normal-state magnetic properties of UTe2 under pressure, we perform 125Te nuclear magnetic resonance (NMR) measurements up to 2 GPa. Below 1.2 GPa, the b-axis NMR Knight shift shows a broad maximum at the so-called T_chimax on cool
Externí odkaz:
http://arxiv.org/abs/2203.12934
Autor:
Fujibayashi, Hiroki, Nakamine, Genki, Kinjo, Katsuki, Kitagawa, Shunsaku, Ishida, Kenji, Tokunaga, Yo, Sakai, Hironori, Kambe, Shinsaku, Nakamura, Ai, Shimizu, Yusei, Homma, Yoshiya, Li, Dexin, Honda, Fuminori, Aoki, Dai
Publikováno v:
J. Phys. Soc. Jpn. 91, 043705 (2022)
This study investigates the spin susceptibility in U-based superconductor UTe$_2$ in the superconducting (SC) state by using Knight shift measurements for a magnetic field $H$ along the $a$ axis, which is the magnetic easy axis of UTe$_2$. Although a
Externí odkaz:
http://arxiv.org/abs/2203.08598
Autor:
Tokunaga, Yo, Sakai, Hironori, Kambe, Shinsaku, Haga, Yoshinori, Tokiwa, Yoshifumi, Opletal, Petr, Fujibayashi, Hiroki, Kinjo, Katsuki, Kitagawa, Shunsaku, Ishida, Kenji, Nakamura, Ai, Shimizu, Yusei, Homma, Yoshiya, Li, Dexin, Honda, Fuminori, Aoki, Dai
Publikováno v:
Journal of the Physical Society of Japan 91, 023707 (2022)
$^{125}$Te NMR experiments in field ($H$) applied along the easy magnetization axis (the $a$-axis) revealed slow electronic dynamics developing in the paramagnetic state of UTe$_2$. The observed slow fluctuations are concerned with a successive growt
Externí odkaz:
http://arxiv.org/abs/2201.07455