Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Tokunaga, Yo"'
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:
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:
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
Autor:
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. 90, 064709 (2021) [7 Pages]
UTe$_2$ is a recently discovered promising candidate for a spin-triplet superconductor. In contrast to conventional spin-singlet superconductivity, spin-triplet superconductivity possesses spin and angular momentum degrees of freedom. To detect these
Externí odkaz:
http://arxiv.org/abs/2105.11823
Autor:
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
To investigate spin susceptibility in a superconducting (SC) state, we measured the $^{125}$Te-nuclear magnetic resonance (NMR) Knight shifts at magnetic fields ($H$) up to 6.5 T along the $b$ and $c$ axes of single-crystal UTe$_2$, a promising candi
Externí odkaz:
http://arxiv.org/abs/2103.02876