Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Tomita, Megumi"'
Autor:
Park, Joongkyu, Berthoux, Coralie, Hoyos-Ramirez, Erika, Shan, Lili, Morimoto-Tomita, Megumi, Wang, Yixiang, Castillo, Pablo E., Tomita, Susumu
Publikováno v:
In Cell Reports 29 August 2023 42(8)
Autor:
Kurita, Nobuyuki, Kimata, Motoi, Kodama, Kota, Harada, Atsushi, Tomita, Megumi, Suzuki, Hiroyuki S., Matsumoto, Takehiko, Murata, Keizo, Uji, Shinya, Terashima, Taichi
Publikováno v:
Phys. Rev. B 88, 224510 (2013)
Resistivity and Hall effect measurements of EuFe$_2$As$_2$ up to 3.2\,GPa indicate no divergence of quasiparticle effective mass at the pressure $P_\mathrm{c}$ where the magnetic and structural transition disappears. This is corroborated by analysis
Externí odkaz:
http://arxiv.org/abs/1312.3380
Autor:
Terashima, Taichi, Kurita, Nobuyuki, Kimata, Motoi, Tomita, Megumi, Tsuchiya, Satoshi, Imai, Motoharu, Sato, Akira, Kihou, Kunihiro, Lee, Chul-Ho, Kito, Hijiri, Eisaki, Hiroshi, Iyo, Akira, Saito, Taku, Fukazawa, Hideto, Kohori, Yoh, Harima, Hisatomo, Uji, Shinya
Publikováno v:
Phys. Rev. B 87, 224512 (2013)
We have completely determined the Fermi surface in KFe$_2$As$_2$ via de Haas-van Alphen (dHvA) measurements. Fundamental frequencies $\epsilon$, $\alpha$, $\zeta$, and $\beta$ are observed in KFe$_2$As$_2$. The first one is attributed to a hole cylin
Externí odkaz:
http://arxiv.org/abs/1304.6469
Autor:
Terashima, Taichi, Kihou, Kunihiro, Tomita, Megumi, Tsuchiya, Satoshi, Kikugawa, Naoki, Ishida, Shigeyuki, Lee, Chul-Ho, Iyo, Akira, Eisaki, Hiroshi, Uji, Shinya
Publikováno v:
Phys. Rev. B 87, 184513 (2013)
We have observed hysteresis in superconducting resistive transition curves of Ba$_{0.07}$K$_{0.93}$Fe$_2$As$_2$ ($T_c\sim$8 K) below about 1 K for in-plane fields. The hysteresis is not observed as the field is tilted away from the $ab$ plane by 20$^
Externí odkaz:
http://arxiv.org/abs/1303.7281
Autor:
Kurita, Nobuyuki, Kimata, Motoi, Kodama, Kota, Harada, Atsushi, Tomita, Megumi, Suzuki, Hiroyuki S., Matsumoto, Takehiko, Murata, Keizo, Uji, Shinya, Terashima, Taichi
Publikováno v:
Phys. Rev. B 83, 214513 (2011)
We have constructed a pressure$-$temperature ($P-T$) phase diagram of $P$-induced superconductivity in EuFe$_2$As$_2$ single crystals, via resistivity ($\rho$) measurements up to 3.2 GPa. As hydrostatic pressure is applied, an antiferromagnetic (AF)
Externí odkaz:
http://arxiv.org/abs/1103.4209
Autor:
Terashima, Taichi, Kurita, Nobuyuki, Tomita, Megumi, Kihou, Kunihiro, Lee, Chul-Ho, Tomioka, Yasuhide, Ito, Toshimitsu, Iyo, Akira, Eisaki, Hiroshi, Liang, Tian, Nakajima, Masamichi, Ishida, Shigeyuki, Uchida, Shin-ichi, Harima, Hisatomo, Uji, Shinya
Publikováno v:
Phys. Rev. Lett. 107, 176402 (2011)
We show that the Fermi surface (FS) in the antiferromagnetic phase of BaFe$_2$As$_2$ is composed of one hole and two electron pockets, all of which are three dimensional and closed, in sharp contrast to the FS observed by angle-resolved photoemission
Externí odkaz:
http://arxiv.org/abs/1103.3329
Autor:
Kurita, Nobuyuki, Kimata, Motoi, Kodama, Kota, Harada, Atsushi, Tomita, Megumi, Suzuki, Hiroyuki S., Matsumoto, Takehiko, Murata, Keizo, Uji, Shinya, Terashima, Taichi
Publikováno v:
Phys. Rev. B 83, 100501(R) (2011)
We have carried out high-field resistivity measurements up to 27\,T in EuFe$_2$As$_2$ at $P$\,=\,2.5\,GPa, a virtually optimal pressure for the $P$-induced superconductivity, where $T_\mathrm{c}$\,=\,30\,K. The $B_\mathrm{c2}-T_\mathrm{c}$ phase diag
Externí odkaz:
http://arxiv.org/abs/1011.5084
Autor:
Terashima, Taichi, Suzuki, Hiroyuki S., Tomita, Megumi, Kimata, Motoi, Satsukawa, Hidetaka, Harada, Atsushi, Hazama, Kaori, Matsumoto, Takehiko, Murata, Keizo, Uji, Shinya
We present the magnetic and superconducting phase diagram of EuFe$_2$As$_2$ for $B \parallel c$ and $B \parallel ab$. The antiferromagnetic phase of the Eu$^{2+}$ moments is completely enclosed in the superconducting phase. The upper critical field v
Externí odkaz:
http://arxiv.org/abs/0908.2280
Akademický článek
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Autor:
Greten-Harrison, Becket, Polydoro, Manuela, Morimoto-Tomita, Megumi, Diao, Ling, Williams, Andrew M., Nie, Esther H., Makani, Sachin, Tian, Ning, Castillo, Pablo E., Buchman, Vladimir L., Chandra, Sreeganga S., Südhof, Thomas C.
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2010 Nov 01. 107(45), 19573-19578.
Externí odkaz:
https://www.jstor.org/stable/25748715