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Journal Articles

Microscopic origin of the spin-reorientation transition in the kagome topological magnet TbMn$$_{6}$$Sn$$_{6}$$

Huang, Z.*; Wang, W.*; Ye, H.*; Bao, S.*; Shangguan, Y.*; Liao, J.*; Cao, S.*; Kajimoto, Ryoichi; Ikeuchi, Kazuhiko*; Deng, G.*; et al.

Physical Review B, 109(1), p.014434_1 - 014434_9, 2024/01

Journal Articles

Spiral spin cluster in the hyperkagome antiferromagnet Mn$$_{3}$$RhSi

Shamoto, Shinichi; Yamauchi, Hiroki; Iida, Kazuki*; Ikeuchi, Kazuhiko*; Hall, A. E.*; Chen, Y.-S.*; Lee, M. K.*; Balakrishnan, G.*; Chang, L.-J.*

Communications Physics (Internet), 6, p.248_1 - 248_6, 2023/09

We show that the local spin correlation order has a spiral structure by neutron scattering measurement of a Mn$$_{3}$$RhSi single crystal. The possible origins of the magnetic cluster formation are discussed in terms of the Lifshitz invariant and the Griffiths phase, and compared with the room-temperature skyrmion phase of Co$$_{7}$$Zn$$_{7}$$Mn$$_{6}$$ and non-Fermi liquid behavior of $$beta$$-Mn.

Journal Articles

Observation of field-induced single-ion magnetic anisotropy in a multiorbital Kondo alloy (Lu,Yb)Rh$$_2$$Zn$$_{20}$$

Kitazawa, Takafumi; Ikeda, Yoichi*; Sakakibara, Toshiro*; Matsuo, Akira*; Shimizu, Yusei*; Tokunaga, Yo; Haga, Yoshinori; Kindo, Koichi*; Nambu, Yusuke*; Ikeuchi, Kazuhiko*; et al.

Physical Review B, 108(8), p.085105_1 - 085105_7, 2023/08

Journal Articles

Single crystal growths and magnetic properties of hexagonal polar semimetals $$R$$AuGe ($$R$$ = Y, Gd-Tm, and Lu)

Kurumaji, Takashi*; Gen, Masaki*; Kito, Shunsuke*; Ikeuchi, Kazuhiko*; Nakamura, Mitsutaka; Ikeda, Akihiko*; Arima, Takahisa*

Journal of Alloys and Compounds, 947, p.169475_1 - 169475_8, 2023/06

 Times Cited Count:0 Percentile:57.92(Chemistry, Physical)

Journal Articles

Possible future upgrades of the direct-geometry chopper spectrometer 4SEASONS

Kajimoto, Ryoichi; Nakamura, Mitsutaka; Kamazawa, Kazuya*; Inamura, Yasuhiro; Iida, Kazuki*; Ikeuchi, Kazuhiko*; Ishikado, Motoyuki*

EPJ Web of Conferences, 272, p.02007_1 - 02007_8, 2022/11

Journal Articles

Spin fluctuations in the 112-type iron-based superconductor Ca$$_{0.82}$$La$$_{0.18}$$Fe$$_{0.96}$$Ni$$_{0.04}$$As$$_{2}$$

Xie, T.*; Liu, C.*; Kajimoto, Ryoichi; Ikeuchi, Kazuhiko*; Li, S.*; Luo, H.*

Journal of Physics; Condensed Matter, 34(47), p.474001_1 - 474001_8, 2022/11

 Times Cited Count:0 Percentile:0(Physics, Condensed Matter)

Journal Articles

Structures of magnetic excitations in the spin-$$frac{1}{2}$$ kagome-lattice antiferromagnets Cs$$_{2}$$Cu$$_{3}$$SnF$$_{12}$$ and Rb$$_{2}$$Cu$$_{3}$$SnF$$_{12}$$

Saito, Mutsuki*; Takagishi, Ryunosuke*; Kurita, Nubuyuki*; Watanabe, Masari*; Tanaka, Hidekazu*; Nomura, Ryuji*; Fukumoto, Yoshiyuki*; Ikeuchi, Kazuhiko*; Kajimoto, Ryoichi

Physical Review B, 105(6), p.064424_1 - 064424_15, 2022/02

 Times Cited Count:5 Percentile:69.66(Materials Science, Multidisciplinary)

Journal Articles

Neutron spectroscopy evidence on the dual nature of magnetic excitations in a van der Waals metallic ferromagnet Fe$$_{2.75}$$GeTe$$_{2}$$

Bao, S.*; Wang, W.*; Shangguan, Y.*; Cai, Z.*; Dong, Z.-Y.*; Huang, Z.*; Si, W.*; Ma, Z.*; Kajimoto, Ryoichi; Ikeuchi, Kazuhiko*; et al.

Physical Review X, 12(1), p.011022_1 - 011022_15, 2022/02

 Times Cited Count:5 Percentile:79.93(Physics, Multidisciplinary)

Journal Articles

Spin excitations coupled with lattice and charge dynamics in La$$_{2-x}$$Sr$$_{x}$$CuO$$_{4}$$

Ikeuchi, Kazuhiko*; Wakimoto, Shuichi; Fujita, Masaki*; Fukuda, Tatsuo; Kajimoto, Ryoichi; Arai, Masatoshi*

Physical Review B, 105(1), p.014508_1 - 014508_7, 2022/01

 Times Cited Count:1 Percentile:37.1(Materials Science, Multidisciplinary)

Journal Articles

Spin-flop phase in a honeycomb antiferromagnet Mn$$_{0.84}$$Mg$$_{0.16}$$TiO$$_{3}$$

Shamoto, Shinichi; Yamauchi, Hiroki; Ikeuchi, Kazuhiko*; Lee, M. K.*; Chang, L.-J.*; Garlea, V. O.*; Hwang, I. Y.*; Lee, K. H.*; Chung, J.-H.*

Journal of the Physical Society of Japan, 90(9), p.093703_1 - 093703_4, 2021/09

 Times Cited Count:0 Percentile:0(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Gallium-effect in a lead-free solder for silver-sheathed superconducting tape

Shamoto, Shinichi; Lee, M. K.*; Fujimura, Yuki; Kondo, Keietsu; Ito, Takashi; Ikeuchi, Kazuhiko*; Yasuda, Satoshi; Chang, L.-J.*

Materials Research Express (Internet), 8(7), p.076303_1 - 076303_6, 2021/07

 Times Cited Count:0 Percentile:0(Materials Science, Multidisciplinary)

Pb, Ga, and Ga doped lead free Sn-Ag-Cu solders are used to study the gallium effect for the low joint resistivity with silver sheathed DI BISCCO type H tapes. The results are reported.

Journal Articles

Spin wave excitations in honeycomb antiferromagnet MnTiO$$_{3}$$

Hwang, I. Y.*; Lee, K. H.*; Chung, J.-H.*; Ikeuchi, Kazuhiko*; Garlea, V. O.*; Yamauchi, Hiroki; Akatsu, Mitsuhiro*; Shamoto, Shinichi

Journal of the Physical Society of Japan, 90(6), p.064708_1 - 064708_6, 2021/06

 Times Cited Count:2 Percentile:31.34(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Magnetic excitations of Sr$$_{3}$$Ir$$_{2}$$O$$_{7}$$ observed by inelastic neutron scattering technique

Fujita, Masaki*; Ikeuchi, Kazuhiko*; Kajimoto, Ryoichi; Nakamura, Mitsutaka

Journal of the Physical Society of Japan, 90(2), p.025001_1 - 025001_2, 2021/02

 Times Cited Count:1 Percentile:17.22(Physics, Multidisciplinary)

Journal Articles

Broken C$$_{4}$$ symmetry in the tetragonal state of uniaxial strained BaCo$$_{0.9}$$Ni$$_{0.1}$$S$$_{1.9}$$

Shamoto, Shinichi; Yamauchi, Hiroki; Ikeuchi, Kazuhiko*; Kajimoto, Ryoichi; Ieda, Junichi

Physical Review Research (Internet), 3(1), p.013169_1 - 013169_9, 2021/02

Journal Articles

Coexistence of two components in magnetic excitations of La$$_{2-x}$$Sr$$_{x}$$CuO$$_{4}$$ ($$x$$ = 0.10 and 0.16)

Sato, Kentaro*; Ikeuchi, Kazuhiko*; Kajimoto, Ryoichi; Wakimoto, Shuichi; Arai, Masatoshi*; Fujita, Masaki*

Journal of the Physical Society of Japan, 89(11), p.114703_1 - 114703_7, 2020/11

 Times Cited Count:4 Percentile:39.42(Physics, Multidisciplinary)

Journal Articles

Energy resolution and neutron flux of the 4SEASONS spectrometer revisited

Kajimoto, Ryoichi; Nakamura, Mitsutaka; Iida, Kazuki*; Kamazawa, Kazuya*; Ikeuchi, Kazuhiko*; Inamura, Yasuhiro; Ishikado, Motoyuki*

Journal of Neutron Research, 22(2-3), p.99 - 107, 2020/10

Journal Articles

Evidence for magnon-phonon coupling in the topological magnet Cu$$_{3}$$TeO$$_{6}$$

Bao, S.*; Cai, Z.*; Si, W.*; Wang, W.*; Wang, X.*; Shangguan, Y.*; Ma, Z.*; Dong, Z.-Y.*; Kajimoto, Ryoichi; Ikeuchi, Kazuhiko*; et al.

Physical Review B, 101(21), p.214419_1 - 214419_8, 2020/06

 Times Cited Count:11 Percentile:69.6(Materials Science, Multidisciplinary)

Journal Articles

The $$f$$-electron state of the heavy fermion superconductor NpPd$$_5$$Al$$_2$$ and the isostructural family

Metoki, Naoto; Aczel, A. A.*; Aoki, Dai*; Chi, S.*; Fernandez-Baca, J. A.*; Griveau, J.-C.*; Hagihara, Masato*; Hong, T.*; Haga, Yoshinori; Ikeuchi, Kazuhiko*; et al.

JPS Conference Proceedings (Internet), 30, p.011123_1 - 011123_6, 2020/03

Rare earths (4$$f$$) and actinides (5$$f$$) provide variety of interesting states realized with competing interactions between the increasing number of $$f$$ electrons. Since crystal field splitting of many-body $$f$$ electron system is smaller than the bandwidth, (1) high resolution experiments are needed, (2) essentially no clear spectrum with well defined peaks is expected in itinerant Ce and U compounds, and (3) Np and Pu is strictly regulated. Therefore, systematic research on magnetic excitations by neutron scattering experiments of localized compounds and rare earth iso-structural reference is useful. We describe the $$f$$ electron states of heavy electron compounds NpPd$$_5$$Al$$_2$$ and actinide and rare earth based iso-structural family.

Journal Articles

Strong local moment antiferromagnetic spin fluctuations in V-doped LiFeAs

Xu, Z.*; Dai, G.*; Li, Y.*; Yin, Z.*; Rong, Y.*; Tian, L.*; Liu, P.*; Wang, H.*; Xing, L.*; Wei, Y.*; et al.

npj Quantum Materials (Internet), 5(1), p.11_1 - 11_7, 2020/02

 Times Cited Count:4 Percentile:41.56(Materials Science, Multidisciplinary)

Journal Articles

Q dependence of magnetic resonance mode on FeTe$$_{0.5}$$Se$$_{0.5}$$ studied by inelastic neutron scattering

Ishikado, Motoyuki*; Kodama, Katsuaki; Kajimoto, Ryoichi; Nakamura, Mitsutaka; Inamura, Yasuhiro; Ikeuchi, Kazuhiko*; Ji, S.*; Arai, Masatoshi*; Shamoto, Shinichi

Condensed Matter (Internet), 4(3), p.69_1 - 69_10, 2019/09

The enhancement magnetic resonance mode of FeTe$$_{0.5}$$Se$$_{0.5}$$ is limited around Q = ($$pi$$, 0). Q dependence is found to be consistent with a theoretical simulation of the magnetic resonance mode with the sign-reversing order parameter of s$$pm$$wave.

138 (Records 1-20 displayed on this page)