Academic Appointments

  • Sr Res Scientist-Physical, Academic Units

Honors & Awards

  • JPSJ Papers of Editors' Choice, Journal of Physical Society of Japan (2017.01)
  • Incentive award, Graduate School of Arts and Sciences, The University of Tokyo (2015.03)

All Publications

  • Imaging anisotropic vortex dynamics in FeSe PHYSICAL REVIEW B Zhang, I. P., Palmstrom, J. C., Noad, H., Bishop-Van Horn, L., Iguchi, Y., Cui, Z., Mueller, E., Kirtley, J. R., Fisher, I. R., Moler, K. A. 2019; 100 (2)
  • Microwave nonreciprocity of magnon excitations in the noncentrosymmetric antiferromagnet Ba2MnGe2O7 PHYSICAL REVIEW B Iguchi, Y., Nii, Y., Kawano, M., Murakawa, H., Hanasaki, N., Onose, Y. 2018; 98 (6)
  • Magnetoelectrical control of nonreciprocal microwave response in a multiferroic helimagnet NATURE COMMUNICATIONS Iguchi, Y., Nii, Y., Onose, Y. 2017; 8: 15252


    The control of physical properties by external fields is essential in many contemporary technologies. For example, conductance can be controlled by a gate electric field in a field effect transistor, which is a main component of integrated circuits. Optical phenomena induced by an electric field such as electroluminescence and electrochromism are useful for display and other technologies. Control of microwave propagation is also important for future wireless communication technology. Microwave properties in solids are dominated mostly by magnetic excitations, which cannot be easily controlled by an electric field. One solution to this problem is to use magnetically induced ferroelectrics (multiferroics). Here we show that microwave nonreciprocity, that is, different refractive indices for microwaves propagating in opposite directions, could be reversed by an external electric field in a multiferroic helimagnet Ba2Mg2Fe12O22. This approach offers an avenue for the electrical control of microwave properties.

    View details for DOI 10.1038/ncomms15252

    View details for Web of Science ID 000400861300001

    View details for PubMedID 28480887

    View details for PubMedCentralID PMC5424162

  • Microwave Magnetochiral Effect in the Non-centrosymmetric Magnet CuB2O4 JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN Nii, Y., Sasaki, R., Iguchi, Y., Onose, Y. 2017; 86 (2)
  • Nonreciprocal propagation of surface acoustic wave in Ni/LiNbO3 PHYSICAL REVIEW B Sasaki, R., Nii, Y., Iguchi, Y., Onose, Y. 2017; 95 (2)
  • Terahertz Radiation by Subpicosecond Magnetization Modulation in the Ferrimagnet LiFe5O8 ACS PHOTONICS Kinoshita, Y., Kida, N., Sotome, M., Miyamoto, T., Iguchi, Y., Onose, Y., Okamoto, H. 2016; 3 (7): 1170–75
  • Nonreciprocal magnon propagation in a noncentrosymmetric ferromagnet LiFe5O8 PHYSICAL REVIEW B Iguchi, Y., Uemura, S., Ueno, K., Onose, Y. 2015; 92 (18)
  • Uniaxial-Pressure Effects on Spin-Driven Lattice Distortions in Geometrically Frustrated Magnets CuFe1-xGaxO2 (x=0, 0.035) JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN Nakajima, T., Iguchi, Y., Tamatsukuri, H., Mitsuda, S., Yamasaki, Y., Nakao, H., Terada, N. 2013; 82 (11)