Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Kitagawa, Shunsaku"'
Publikováno v:
Phys. Rev. B 109, L041408 (2024)
Nanoparticles were predicted to exhibit unique physical properties due to quantum size effects, but their identification remains difficult. According to Kubo's theory, the gap size is inversely correlated with both the density of states at the Fermi
Externí odkaz:
http://arxiv.org/abs/2401.14573
Autor:
Ogata, Shiki, Kitagawa, Shunsaku, Kinjo, Katsuki, Kibune, Mayu, Ishida, Kenji, Brando, Manuel, Hassinger, Elena, Geibel, Christoph, Khim, Seunghyun
Publikováno v:
New Physics: Sae Mulli 73, 12(2023)
We performed $^{75}$As-NMR measurements in $H\parallel ab$ to investigate the normal-state magnetic properties of CeRh$_2$As$_2$, a recently-discovered heavy-fermion superconductor. We compared the NMR Knight shift $K$ with the magnetic susceptibilit
Externí odkaz:
http://arxiv.org/abs/2401.13291
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:
Ogata, Shiki, Kitagawa, Shunsaku, Kinjo, Katsuki, Ishida, Kenji, Brando, Manuel, Hassinger, Elena, Geibel, Christoph, Khim, Seunghyun
Publikováno v:
Phys. Rev. Lett. 130, 166001 (2023)
Recently, a superconducting (SC) transition from low-field (LF) to high-field (HF) SC states was reported in CeRh$_2$As$_2$, indicating the existence of multiple SC states. It has been theoretically noted that the existence of two Ce sites in the uni
Externí odkaz:
http://arxiv.org/abs/2304.10032
Autor:
Chuang, Chien-Wen, Souma, Seigo, Moriya, Ayumi, Nakayama, Kosuke, Ikeda, Atsutoshi, Kawaguchi, Mayo, Obata, Keito, Saha, Shanta Ranjan, Takahashi, Hidemitsu, Kitagawa, Shunsaku, Ishida, Kenji, Tanaka, Kiyohisa, Kitamura, Miho, Horiba, Koji, Kumigashira, Hiroshi, Takahashi, Takashi, Yonezawa, Shingo, Paglione, Johnpierre, Maeno, Yoshiteru, Sato, Takafumi
Publikováno v:
Phys. Rev. Materials 6, 104203 (2022)
We performed angle-resolved photoemission spectroscopy with micro-focused beam on a topological line-nodal compound CaSb2 which undergoes a superconducting transition at the onset Tc~1.8 K, to clarify the Fermi-surface topology relevant to the occurr
Externí odkaz:
http://arxiv.org/abs/2211.15083
Autor:
Manago, Masahiro, Motoyama, Gaku, Nishigori, Shijo, Fujiwara, Kenji, Kinjo, Katsuki, Kitagawa, Shunsaku, Ishida, Kenji, Akiba, Kazuto, Araki, Shingo, Kobayashi, Tatsuo C., Harima, Hisatomo
Publikováno v:
J. Phys. Soc. Jpn. 91, 113701 (2022)
The magnetic structure of antiferromagnetic $\alpha$-Mn has been unclarified for almost 70 years since its magnetism was discovered. We measured the zero-field nuclear magnetic resonance spectra of antiferromagnetic $\alpha$-Mn to obtain further insi
Externí odkaz:
http://arxiv.org/abs/2210.02754
Autor:
Kitagawa, Shunsaku, Kobayashi, Takumi, Hori, Fumiya, Ishida, Kenji, Nevidomskyy, Andriy H., Qian, Long, Morosan, Emilia
Publikováno v:
Phys. Rev. B 106, L100405 (2022)
The new Kondo material YbIr$_3$Si$_7$, similar to other Kondo insulators, has been reported to exhibit charge-neutral fermionic excitations through measurements of specific heat and thermal conductivity at low temperatures. We performed $^{29}$Si-NMR
Externí odkaz:
http://arxiv.org/abs/2209.10844