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Journal Articles

Spontaneous topological Hall effect induced by non-coplanar antiferromagnetic order in intercalated van der Waals materials

Takagi, Hirotaka*; Takagi, Rina*; Minami, Susumu*; Nomoto, Takuya*; Oishi, Kazuki*; Suzuki, Michito*; Yanagi, Yuki*; Hirayama, Motoaki*; Khanh, N.*; Karube, Kosuke*; et al.

Nature Physics, 19(7), p.961 - 968, 2023/07

 Times Cited Count:8 Percentile:96.03(Physics, Multidisciplinary)

Journal Articles

Square and rhombic lattices of magnetic skyrmions in a centrosymmetric binary compound

Takagi, Rina*; Matsuyama, Naofumi*; Ukleev, V.*; Yu, L.*; White, J. S.*; Francoual, S.*; Mardegan, J. R. L.*; Hayami, Satoru*; Saito, Hiraku*; Kaneko, Koji; et al.

Nature Communications (Internet), 13, p.1472_1 - 1472_7, 2022/03

 Times Cited Count:55 Percentile:99.61(Multidisciplinary Sciences)

Journal Articles

Emergence of spin-orbit coupled ferromagnetic surface state derived from Zak phase in a nonmagnetic insulator FeSi

Otsuka, Yusuke*; Kanazawa, Naoya*; Hirayama, Motoaki*; Matsui, Akira*; Nomoto, Takuya*; Arita, Ryotaro*; Nakajima, Taro*; Hanashima, Takayasu*; Ukleev, V.*; Aoki, Hiroyuki; et al.

Science Advances (Internet), 7(47), p.eabj0498_1 - eabj0498_9, 2021/11

 Times Cited Count:7 Percentile:40.96(Multidisciplinary Sciences)

Journal Articles

High-field depinned phase and planar Hall effect in the skyrmion host Gd$$_2$$PdSi$$_3$$

Hirschberger, M.*; Nakajima, Taro*; Kriener, M.*; Kurumaji, Takashi*; Spitz, L.*; Gao, S.*; Kikkawa, Akiko*; Yamasaki, Yuichi*; Sagayama, Hajime*; Nakao, Hironori*; et al.

Physical Review B, 101(22), p.220401_1 - 220401_6, 2020/06

 Times Cited Count:40 Percentile:91.78(Materials Science, Multidisciplinary)

Journal Articles

Phase-transition kinetics of magnetic skyrmions investigated by stroboscopic small-angle neutron scattering

Nakajima, Taro*; Inamura, Yasuhiro; Ito, Takayoshi*; Oishi, Kazuki*; Oike, Hiroshi*; Kagawa, Fumitaka*; Kikkawa, Akiko*; Taguchi, Yasujiro*; Kakurai, Kazuhisa*; Tokura, Yoshinori*; et al.

Physical Review B, 98(1), p.014424_1 - 014424_5, 2018/07

 Times Cited Count:7 Percentile:34.59(Materials Science, Multidisciplinary)

We investigated the phase-transition kinetics of magnetic skyrmion lattice (SkL) in MnSi by means of stroboscopic small-angle neutron scattering (SANS). Temporal evolutions of SANS patterns were measured with time resolution of 13 ms while sweeping temperature as fast as 50 Ks$$^{-1}$$. It turned out that the paramagnetic-to-SkL transition immediately occurs upon traversing the equilibrium phase boundary on the rapid cooling, whereas the SkL-to-conical transition can be kinetically avoided to realize the low-temperature metastable SkL with a long-range magnetic order. The formation of the metastable SkL was found to be strongly dependent not only on cooling rate, but also on magnetic eld and trajectory in the H-T phase diagram.

Journal Articles

Uniaxial-pressure control of magnetic phase transitions in a frustrated magnet CuFe$$_{1-x}$$Ga$$_{x}$$O$$_{2}$$ (x =0, 0.018)

Nakajima, Taro*; Mitsuda, Setsuo*; Takahashi, Keiichiro*; Yoshitomi, Keisuke*; Masuda, Kazuya*; Kaneko, Chikafumi*; Homma, Yuki*; Kobayashi, Satoru*; Kitazawa, Hideaki*; Kosaka, Masashi*; et al.

Journal of the Physical Society of Japan, 81(9), p.094710_1 - 094710_8, 2012/09

Journal Articles

Uniaxial-pressure control of magnetic phase transitions in a frustrated magnet CuFe$$_{1-x}$$Ga$$_{x}$$O$$_{2}$$ ($$x$$ = 0, 0.018)

Nakajima, Taro*; Mitsuda, Setsuo*; Takahashi, Keiichiro*; Yoshitomi, Keisuke*; Masuda, Kazuya*; Kaneko, Chikafumi*; Homma, Yuki*; Kobayashi, Satoru*; Kitazawa, Hideaki*; Kosaka, Masashi*; et al.

Journal of the Physical Society of Japan, 81(9), p.094710_1 - 094710_8, 2012/09

 Times Cited Count:13 Percentile:63.29(Physics, Multidisciplinary)

Journal Articles

Magnons and electromagnons in a spin-lattice-coupled frustrated magnet CuFeO$$2$$ as seen via inelastic neutron scattering

Nakajima, Taro*; Suno, Azusa*; Mitsuda, Setsuo*; Terada, Noriki*; Kimura, Shojiro*; Kaneko, Koji; Yamauchi, Hiroki

Physical Review B, 84(18), p.184401_1 - 184401_7, 2011/11

 Times Cited Count:33 Percentile:76.21(Materials Science, Multidisciplinary)

Journal Articles

Exchange-striction associated with the elliptical proper helical magnetic structure in the ferroelectric phase of CuFe$$_{1-y}$$Ga$$_{y}$$O$$_{2}$$

Terada, Noriki*; Nakajima, Taro*; Mitsuda, Setsuo*; Matsuda, Masaaki; Kakurai, Kazuhisa; Tanaka, Yoshihito*; Kitazawa, Hideaki*

Journal of Physics; Conference Series, 211(1), p.012005_1 - 012005_6, 2010/01

 Times Cited Count:2 Percentile:66.93(Physics, Applied)

Journal Articles

Identification of microscopic spin-polarization coupling in the ferroelectric phase of magnetoelectric multiferroic CuFe$$_{1-x}$$Al$$_x$$O$$_2$$

Nakajima, Taro*; Mitsuda, Setsuo*; Inami, Toshiya; Terada, Noriki*; Osumi, Hiroyuki*; Prokes, K.*; Podlesnyak, A.*

Physical Review B, 78(2), p.024106_1 - 024106_10, 2008/07

 Times Cited Count:34 Percentile:77.4(Materials Science, Multidisciplinary)

Oral presentation

Study of complex magnetic structures in frustrated magnets by means of polarized neutrons

Kakurai, Kazuhisa; Wakimoto, Shuichi; Matsuda, Masaaki*; Ishiwata, Shintaro*; Okuyama, Daisuke*; Taguchi, Yasujiro*; Tokura, Yoshiki*; Nishi, Masakazu*; Nakajima, Taro*; Mitsuda, Setsuo*; et al.

no journal, , 

Oral presentation

Detailed analysis of magnetic and crystalline structure of multiferroic CuFe$$_{1-x}$$Ga$$_{x}$$O$$_{2}$$ by means of CRYOPAD and RXS

Kaneko, Chikafumi*; Nakajima, Taro*; Mitsuda, Setsuo*; Terada, Noriki*; Wakimoto, Shuichi; Takeda, Masayasu; Kakurai, Kazuhisa; Tanaka, Yoshikazu*

no journal, , 

no abstracts in English

Oral presentation

Observation of electromagnons in Y-type hexaferrite Ba$$_{2}$$Mg$$_{2}$$Fe$$_{12}$$O$$_{22}$$ by means of polarized inelastic neutron scattering

Nakajima, Taro*; Kakurai, Kazuhisa; Arima, Takahisa*; Matsuda, Masaaki*; Takahashi, Yoichiro*; Ishiwata, Shintaro*; Taguchi, Yasujiro*; Tokura, Yoshinori*

no journal, , 

no abstracts in English

Oral presentation

Magnetic orders in a room-temperature multiferroic hexaferrite BaSrCo$$_{2}$$Fe$$_{11}$$AlO$$_{22}$$ studied by means of single-crystal neutron diffraction measurements

Nakajima, Taro*; Tokunaga, Yusuke*; Matsuda, Masaaki*; Dissanayake, S.*; Fernandez-Baca, J. A.*; Kakurai, Kazuhisa; Taguchi, Yasujiro*; Tokura, Yoshinori*; Arima, Takahisa*

no journal, , 

no abstracts in English

Oral presentation

Field-induced magnetic phase transitions in the triangular-lattice antiferromagnet CuFeO$$_{2}$$ investigated by time-of-flight neutron diffraction in long-pulse magnetic fields

Watanabe, Masao; Nakajima, Taro*; Inamura, Yasuhiro; Matsui, Kazuki*; Kanda, Tomoki*; Nomoto, Tetsuya*; Oishi, Kazuki*; Kawamura, Yukihiko*; Saito, Hiraku*; Tamatsukuri, Hiromu; et al.

no journal, , 

In recent years, due to advances in precision measurement technology in pulsed magnetic fields, a novel magnetic state was discovered in a strong magnetic field. We constructed a measurement environment that can comprehensively explore the reciprocal lattice space under magnetic fields up to 14 Tesla by combining the long-pulse magnetic field generated by the supercapacitor and pulsed neutrons at J-PARC. This equipment can generate a magnetic field that is sufficiently longer than the time width (about 10 milliseconds) of the multi-wavelength neutron pulse passing through the sample. This method was used to investigate the magnetic phase transition in the frustrated magnet CuFeO$$_{2}$$.

15 (Records 1-15 displayed on this page)
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