Zobrazeno 1 - 10
of 768
pro vyhledávání: '"Iga, F"'
Autor:
Qureshi, N., Bourdarot, F., Ressouche, E., Knafo, W., Iga, F., Michimura, S., Regnault, L. -P., Duc, F.
We present a single-crystal neutron diffraction study on the Shastry-Sutherland lattice system TbB$_4$ at zero magnetic field and under pulsed high magnetic fields up to 35 T applied along the crystallographic $c$ axis. While our results confirm the
Externí odkaz:
http://arxiv.org/abs/2209.02061
Autor:
Sato, Y., Xiang, Z., Kasahara, Y., Kasahara, S., Chen, Lu, Tinsman, C., Iga, F., Singleton, J., Nair, N. L., Maksimovic, N., Analytis, J. G., Li, Lu, Matsuda, Y.
Kondo insulators have recently aroused great interest because they are promising materials that host a topological insulator state caused by the strong electron interactions. Moreover, recent observations of the quantum oscillations in the insulating
Externí odkaz:
http://arxiv.org/abs/2107.00912
Autor:
Pokharel, A. R., Agustsson, S. Y., Kabanov, V. V., Iga, F., Takabatake, T., Okamura, H., Demsar, J.
Publikováno v:
Phys. Rev. B 113, 115134 (2021)
In heavy fermions the relaxation dynamics of photoexcited carriers has been found to be governed by the low energy indirect gap, E$_{g}$, resulting from hybridization between localized moments and conduction band electrons. Here, carrier relaxation d
Externí odkaz:
http://arxiv.org/abs/2103.03284
Autor:
Kurihara, R., Miyake, A., Tokunaga, M., Ikeda, A., Matsuda, Y. H., Miyata, A., Gorbunov, D. I., Nomura, T., Zherlitsyn, S., Wosnitza, J., Iga, F.
Publikováno v:
Phys. Rev. B 103, 115103 (2021)
We performed high-magnetic-field ultrasonic experiments on YbB$_{12}$ up to 59 T to investigate the valence fluctuations in Yb ions. In zero field, the longitudinal elastic constant $C_{11}$, the transverse elastic constants $C_{44}$ and $\left( C_{1
Externí odkaz:
http://arxiv.org/abs/2102.08615
Autor:
Valdovinos Díaz, M.A., Amieva-Balmori, M., Carmona-Sánchez, R., Coss-Adame, E., Gómez-Escudero, O., González-Martínez, M., Huerta-Iga, F., Morel-Cerda, E., Remes-Troche, J.M., Tamayo-de la Cuesta, J.L., Torres-Villalobos, G., Valdovinos-García, L.R., Vázquez-Elizondo, G., Villar-Chávez, A.S., Arenas-Martínez, J.A.
Publikováno v:
In Revista de Gastroenterología de México (English Edition) January-March 2024 89(1):121-143
Autor:
Sato, Y., Xiang, Z., Kasahara, Y., Taniguchi, T., Kasahara, S., Chen, L., Asaba, T., Tinsman, C., Murayama, H., Tanaka, O., Mizukami, Y., Shibauchi, T., Iga, F., Singleton, J., Li, Lu, Matsuda, Y.
Quantum oscillations (QOs) in transport and thermodynamic parameters at high magnetic fields are an unambiguous signature of the Fermi surface, the defining characteristic of a metal. Therefore, recent observations of QOs in insulating SmB$_6$ and Yb
Externí odkaz:
http://arxiv.org/abs/1905.05357
Autor:
Xiang, Z., Kasahara, Y., Asaba, T., Lawson, B., Tinsman, C., Chen, Lu, Sugimoto, K., Kawaguchi, S., Sato, Y., Li, G., Yao, S., Chen, Y. L., Iga, F., Singleton, John, Matsuda, Y., Li, Lu
Publikováno v:
Science 362, 65-69 (2018)
In metals, orbital motions of conduction electrons on the Fermi surface are quantized in magnetic fields, which is manifested by quantum oscillations in electrical resistivity. This Landau quantization is generally absent in insulators. Here we repor
Externí odkaz:
http://arxiv.org/abs/1905.05140
Autor:
Ohtsubo, Y., Yamashita, Y., Hagiwara, K., Ideta, S., Tanaka, K., Yukawa, R., Horiba, K., Kumigashira, H., Miyamoto, K., Okuda, T., Hirano, W., Iga, F., Kimura, S.
Publikováno v:
Nature Communicationsvolume 10, Article number: 2298 (2019)
The peculiar metallic electronic states observed in the Kondo insulator, samarium hexaboride (SmB$_6$), has stimulated considerable attention among those studying non-trivial electronic phenomena. However, experimental studies of these states have le
Externí odkaz:
http://arxiv.org/abs/1803.09433
Autor:
Emi, N., Kawamura, N., Mizumaki, M., Koyama, T., Ishimatsu, N., Pristáš, G., Kagayama, T., Shimizu, K., Osanai, Y., Iga, F., Mito, T.
Publikováno v:
Phys. Rev. B 97, 161116 (2018)
We report a systematic study of Sm valence in the prototypical intermediate valence compound SmB$_6$. Sm mean valence, $v_{\rm Sm}$, was measured by X-ray absorption spectroscopy as functions of pressure ($1
Externí odkaz:
http://arxiv.org/abs/1611.10126
Autor:
Sim, Hasung, Lee, Seongsu, Hong, Kun-Pyo, Jeong, Jaehong, Zhang, J. R., Kamiyama, T., Adroja, D. T., Murray, C. A., Thompson, S. P., Iga, F., Ji, S., Khomskii, D., Park, Je-Geun
DyB4 has a two-dimensional Shastry-Sutherland (Sh-S) lattice with strong Ising character of the Dy ions. Despite the intrinsic frustrations, surprisingly, it undergoes two successive transitions: a magnetic ordering at TN = 20K, and a quadrupole orde
Externí odkaz:
http://arxiv.org/abs/1610.08215