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Journal Articles

Temperature-variable apparatus for measuring Barnett field

Umeda, Maki; Chudo, Hiroyuki; Imai, Masaki; Sato, Nana; Saito, Eiji

Review of Scientific Instruments, 94(6), p.063906_1 - 063906_8, 2023/06

Journal Articles

Spin and spin current; From fundamentals to recent progress

Maekawa, Sadamichi; Kikkawa, Takashi*; Chudo, Hiroyuki; Ieda, Junichi; Saito, Eiji

Journal of Applied Physics, 133(2), p.020902_1 - 020902_24, 2023/01

 Times Cited Count:2 Percentile:94.51(Physics, Applied)

Journal Articles

Observation of the angular momentum compensation by Barnett effect and NMR

Chudo, Hiroyuki; Imai, Masaki; Matsuo, Mamoru; Maekawa, Sadamichi; Saito, Eiji

Journal of the Physical Society of Japan, 90(8), p.081003_1 - 081003_11, 2021/08

 Times Cited Count:2 Percentile:42.26(Physics, Multidisciplinary)

Journal Articles

Barnett field, rotational Doppler effect, and Berry phase studied by nuclear quadrupole resonance with rotation

Chudo, Hiroyuki; Matsuo, Mamoru*; Maekawa, Sadamichi*; Saito, Eiji

Physical Review B, 103(17), p.174308_1 - 174308_10, 2021/05

 Times Cited Count:5 Percentile:46.2(Materials Science, Multidisciplinary)

Journal Articles

Reply to "Comment on 'Observation of Barnett fields in solids by nuclear magnetic resonance'" [Appl. Phys. Express 7, 063004 (2014)]

Chudo, Hiroyuki; Matsuo, Mamoru*; Harii, Kazuya*; Maekawa, Sadamichi*; Saito, Eiji

Applied Physics Express, 13(10), p.109102_1 - 109102_2, 2020/10

 Times Cited Count:3 Percentile:52.38(Physics, Applied)

no abstracts in English

Journal Articles

Barnett effect as a angular momentum material science

Chudo, Hiroyuki; Imai, Masaki

Kotai Butsuri, 55(9), p.435 - 443, 2020/09

no abstracts in English

Journal Articles

Enhancement of domain-wall mobility detected by NMR at the angular momentum compensation temperature

Imai, Masaki; Chudo, Hiroyuki; Matsuo, Mamoru; Maekawa, Sadamichi; Saito, Eiji

Physical Review B, 102(1), p.014407_1 - 014407_5, 2020/07

 Times Cited Count:6 Percentile:39.72(Materials Science, Multidisciplinary)

Journal Articles

Giant spin hydrodynamic generation in laminar flow

Takahashi, Ryo*; Chudo, Hiroyuki; Matsuo, Mamoru; Harii, Kazuya*; Onuma, Yuichi*; Maekawa, Sadamichi; Saito, Eiji

Nature Communications (Internet), 11, p.3009_1 - 3009_6, 2020/06

 Times Cited Count:18 Percentile:80.61(Multidisciplinary Sciences)

Journal Articles

Spin Seebeck mechanical force

Harii, Kazuya; Seo, Y.-J.*; Tsutsumi, Yasumasa*; Chudo, Hiroyuki; Oyanagi, Koichi*; Matsuo, Mamoru; Shiomi, Yuki*; Ono, Takahito*; Maekawa, Sadamichi; Saito, Eiji

Nature Communications (Internet), 10, p.2616_1 - 2616_5, 2019/06

 Times Cited Count:28 Percentile:81.84(Multidisciplinary Sciences)

Journal Articles

Angular momentum compensation manipulation to room temperature of the ferrimagnet Ho$$_{3-x}$$Dy$$_{x}$$Fe$$_5$$O$$_{12}$$ detected by the Barnett effect

Imai, Masaki; Chudo, Hiroyuki; Ono, Masao; Harii, Kazuya; Matsuo, Mamoru; Onuma, Yuichi*; Maekawa, Sadamichi; Saito, Eiji

Applied Physics Letters, 114(16), p.162402_1 - 162402_4, 2019/04

 Times Cited Count:19 Percentile:73.58(Physics, Applied)

Journal Articles

Observation of gyromagnetic reversal

Imai, Masaki; Ogata, Yudai*; Chudo, Hiroyuki; Ono, Masao; Harii, Kazuya; Matsuo, Mamoru*; Onuma, Yuichi*; Maekawa, Sadamichi; Saito, Eiji

Applied Physics Letters, 113(5), p.052402_1 - 052402_3, 2018/07

 Times Cited Count:18 Percentile:66.02(Physics, Applied)

Journal Articles

Enhanced orbital magnetic moment in FeCo nanogranules observed by Barnett effect

Ogata, Yudai; Chudo, Hiroyuki; Gu, B.; Kobayashi, Nobukiyo*; Ono, Masao; Harii, Kazuya; Matsuo, Mamoru; Saito, Eiji; Maekawa, Sadamichi

Journal of Magnetism and Magnetic Materials, 442, p.329 - 331, 2017/11

 Times Cited Count:8 Percentile:66.67(Materials Science, Multidisciplinary)

Journal Articles

Fabrication and magnetic control of Y$$_3$$Fe$$_5$$O$$_{12}$$ cantilevers

Seo, Y.-J.*; Harii, Kazuya; Takahashi, Ryo*; Chudo, Hiroyuki; Oyanagi, Koichi*; Qiu, Z.*; Ono, Takahito*; Shiomi, Yuki*; Saito, Eiji

Applied Physics Letters, 110(13), p.132409_1 - 132409_4, 2017/03

 Times Cited Count:12 Percentile:51.21(Physics, Applied)

We have fabricated ferrite cantilevers in which their vibrational properties can be controlled by external magnetic fields. Submicron-scale cantilever structures were made from Y$$_3$$Fe$$_5$$O$$_{12}$$ films by physical etching combined with the use of a focused ion beam milling technique. We found that the cantilevers exhibit two resonance modes which correspond to horizontal and vertical vibrations. Under external magnetic fields, the resonance frequency of the horizontal mode increases, while that of the vertical mode decreases, quantitatively consistent with our numerical simulation for magnetic forces. The changes in resonance frequencies with magnetic fields reach a few percent, showing that an efficient magnetic control of resonance frequencies was achieved.

Journal Articles

Gyroscopic $$g$$ factor of rare earth metals

Ogata, Yudai; Chudo, Hiroyuki; Ono, Masao; Harii, Kazuya; Matsuo, Mamoru; Maekawa, Sadamichi; Saito, Eiji

Applied Physics Letters, 110(7), p.072409_1 - 072409_4, 2017/02

 Times Cited Count:18 Percentile:66.16(Physics, Applied)

Journal Articles

Spin hydrodynamic generation

Takahashi, Ryo*; Matsuo, Mamoru; Ono, Masao; Harii, Kazuya; Chudo, Hiroyuki; Okayasu, Satoru; Ieda, Junichi; Takahashi, Saburo*; Maekawa, Sadamichi; Saito, Eiji

Nature Physics, 12, p.52 - 56, 2016/01

 Times Cited Count:102 Percentile:96.38(Physics, Multidisciplinary)

Journal Articles

Barnett effect in paramagnetic states

Ono, Masao; Chudo, Hiroyuki; Harii, Kazuya; Okayasu, Satoru; Matsuo, Mamoru; Ieda, Junichi; Takahashi, Ryo*; Maekawa, Sadamichi; Saito, Eiji

Physical Review B, 92(17), p.174424_1 - 174424_4, 2015/11

 Times Cited Count:29 Percentile:74.8(Materials Science, Multidisciplinary)

Journal Articles

Line splitting by mechanical rotation in nuclear magnetic resonance

Harii, Kazuya; Chudo, Hiroyuki; Ono, Masao; Matsuo, Mamoru; Ieda, Junichi; Okayasu, Satoru; Maekawa, Sadamichi; Saito, Eiji

Japanese Journal of Applied Physics, 54(5), p.050302_1 - 050302_3, 2015/05

 Times Cited Count:13 Percentile:50.13(Physics, Applied)

Journal Articles

Rotational Doppler effect and Barnett field in spinning NMR

Chudo, Hiroyuki; Harii, Kazuya; Matsuo, Mamoru; Ieda, Junichi; Ono, Masao; Maekawa, Sadamichi; Saito, Eiji

Journal of the Physical Society of Japan, 84(4), p.043601_1 - 043601_4, 2015/04

 Times Cited Count:18 Percentile:72.39(Physics, Multidisciplinary)

Journal Articles

Observation of Barnett fields in solids by nuclear magnetic resonance

Chudo, Hiroyuki; Ono, Masao; Harii, Kazuya; Matsuo, Mamoru; Ieda, Junichi; Haruki, Rie*; Okayasu, Satoru; Maekawa, Sadamichi; Yasuoka, Hiroshi; Saito, Eiji

Applied Physics Express, 7(6), p.063004_1 - 063004_4, 2014/06

 Times Cited Count:44 Percentile:84.5(Physics, Applied)

A magnetic field is predicted to emerge on a particle in a rotating body even if the body is electrically neutral. This emergent field is called a Barnett field. We show that nuclear magnetic resonance (NMR) enables direct measurement of the Barnett field in solids. We rotated both a sample and an NMR coil synchronously at high speed and found an NMR shift whose sing reflects that of the nuclear magnetic moments. This result provides direct evidence of the Barnett field. The use of NMR for Barnett field measurement enables the unknown signs of nuclear magnetic moments in solids to be determined.

Journal Articles

Microscopic properties of the heavy-fermion superconductor PuCoIn$$_5$$ explored by nuclear quadrupole resonance

Koutroulakis, G.*; Yasuoka, Hiroshi; Chudo, Hiroyuki; Tobash, P. H.*; Mitchell, J. N.*; Bauer, E. D.*; Thompson, J. D.*

New Journal of Physics (Internet), 16, p.053019_1 - 053019_12, 2014/05

 Times Cited Count:6 Percentile:45.09(Physics, Multidisciplinary)

We report $$^{115}$$In nuclear quadrupolar resonance (NQR) measurements on the heavy-fermion superconductor PuCoIn$$_5$$, in the temperature range 0.29 K $$leq Tleq$$75 K. The NQR parameters for the two crystallographically inequivalent In sites are determined, and their temperature dependence is investigated. A linear shift of the quadrupolar frequency with lowering temperature below the critical value $$T_c$$ is revealed, in agreement with the prediction for composite pairing. The nuclear spin-lattice relaxation rate $$T_1^{-1}(T)$$ clearly signals a superconducting (SC) phase transition at $$T_c simeq $$ 2.3 K, with strong spin fluctuations, mostly in-plane, dominating the relaxation process in the normal state near to $$T_c$$. Analysis of the $$T_1^{-1}$$ data in the SC state suggests that PuCoIn$$_5$$ is a strong-coupling $$d$$-wave superconductor.

110 (Records 1-20 displayed on this page)