10 citations · 22 across the 9 of their papers we have counts for
9 papers
Double anticrossings induced by nonlinear magnon interactions
Geil Emdi, Tomosato Hioki, Koujiro Hoshi +3
We observe pump-induced double anticrossings whose gap sizes and center-frequency shifts depend strongly on pump power, indicating a nonlinear mechanism. The anticrossings vanish a…
Field Dispersion and Strong Coupling of Nuclear-Electron Spin Excitation in MnCO
Takahiko Makiuchi, Takashi Kikkawa, Thanaporn Sichanugrist +5
Hybridized nuclear and electron spin excitation in a MnCO crystal, a weakly-anisotropic antiferromagnet, has been investigated. In this material, the hyperfine interaction is s…
Current-induced magnon trapping in spin torque oscillation
Takahiko Makiuchi, Naoki Kanazawa, Eiji Saitoh
Spin torque nano-oscillators realized by magnetization dynamics trapped in a current-induced potential are reported. We fabricated NiFe/Pt nanostructures and measured…
Nonlinear enhancement of coherent magnetization dynamics
Mehrdad Elyasi, Kei Yamamoto, Tomosato Hioki +4
Magnets are interesting materials for classical and quantum information technologies. However, the short decoherence and dephasing times that determine the scale and speed of infor…
Switching of magnon parametric oscillation by magnetic field direction
Sohei Horibe, Hiroki Shimizu, Koujiro Hoshi +3
Parametric oscillation occurs when the resonance frequency of an oscillator is periodically modulated. Owing to time-reversal symmetry breaking in magnets, nonreciprocal magnons ca…
Observation of quantum interference conductance fluctuations in metal rings with strong spin-orbit coupling
R. Ramos, T. Makiuchi, T. Kikkawa +3
We investigated the magnetotransport properties of mesoscopic platinum nanostructures (wires and rings) with sub-100 nm lateral dimensions at very low temperatures. Despite the str…
Multiple Diffusion-Freezing Mechanisms in Molecular Hydrogen Films
Takahiko Makiuchi, Katsuyuki Yamashita, Michihiro Tagai +2
Molecular hydrogen is a fascinating candidate for quantum fluid showing bosonic and fermionic superfluidity. We have studied diffusion dynamics of thin films of H, HD and D…
Elastic Anomaly of Thin Neon Film
Takahiko Makiuchi, Katsuyuki Yamashita, Michihiro Tagai +2
Adsorbed molecular films provide two-dimensional systems that show various emergent phenomena that are not observed in bulk counterparts. We have measured the elasticity of thin ne…
Elastic Anomaly of Helium Films at a Quantum Phase Transition
T. Makiuchi, M. Tagai, Y. Nago +2
Helium films show various quantum phases that undergo quantum phase transitions by changing coverage n. We found anomalous elastic phenomena in bosonic 4He and fermionic 3He films…