JOPSS - Search Results

Extending a Boltzmann-Langevin theory to magnons, we show a universality of current-noise suppression in diffusive systems against the difference of quantum-statistical properties of bosons and fermions.

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

https://doi.org/10.1038/s41467-019-10625-y

Times Cited Count：27 Percentile：84.51(Multidisciplinary Sciences)

Journal Articles

Angular momentum compensation manipulation to room temperature of the ferrimagnet Ho $_{3-x}$ Dy $_{x}$ FeO $_{12}$ 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

https://doi.org/10.1063/1.5095166

Times Cited Count：16 Percentile：72.06(Physics, Applied)

Journal Articles

Asymmetric quantum shot noise in magnon transport

Nakata, Koki; Onuma, Yuichi*; Matsuo, Mamoru*

Physical Review B, 99(13), p.134403_1 - 134403_7, 2019/04

https://doi.org/10.1103/PhysRevB.99.134403

Times Cited Count：4 Percentile：20.86(Materials Science, Multidisciplinary)

We study a frequency-dependent noise-to-current ratio for asymmetric, symmetric, and noncommutative current noise in a ferromagnetic insulating junction, and extract quantum-mechanical properties of magnon transport at low temperatures. We demonstrate that the noncommutative noise, which vanishes in the dc limit (i.e., a classical regime), increases monotonically as a function of frequency, and show that the noncommutative noise associated directly with quantum fluctuations of magnon currents breaks through the classical upper limit determined by the symmetric noise and realizes asymmetric quantum shot noise. Finally, we show that our theoretical predictions are within experimental reach with current device and measurement schemes while exploiting low temperatures. Our work provides a platform toward experimental access to quantum fluctuations of magnon currents.

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Twisting an optomechanical cavity

Spin pumping into anisotropic Dirac electrons

Multiparticle tunneling transport at strongly correlated interfaces

Ferromagnetic resonance modulation in -wave superconductor/ferromagnetic insulator bilayer systems

Valley transport driven by dynamic lattice distortion

Spin elastodynamic motive force

Motion-induced spin transfer

Einstein-de Haas nanorotor

Observation of the angular momentum compensation by Barnett effect and NMR

Zeeman coupling and Dzyaloshinskii-Moriya interaction driven by electric current vorticity

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

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

Giant spin hydrodynamic generation in laminar flow

Effects of surface plasmons on spin currents in a thin film system

Fate of spin polarization in a relativistic fluid; An Entropy-current analysis

Universal $frac{1}{3}$ -suppression of magnonic shot noise in diffusive insulating magnets

Spin Seebeck mechanical force

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

Asymmetric quantum shot noise in magnon transport