N. Kida

Terahertz time-domain spectroscopy of electromagnons in multiferroic perovskite manganites (2009)

Kida, N., Takahashi, Y., Lee, J. S., Shimano, R., Yamasaki, Y., Kaneko, Y., ...

Recent spectroscopic studies at terahertz frequencies for a variety of multiferroics endowed with both ferroelectric and magnetic orders have revealed the possible emergence of a new collective...

Electric-dipole active two-magnon excitation in {\textit{ab}} spiral spin phase of a ferroelectric magnet Gd$_{\textbf{0.7}}$Tb$_{\textbf{0.3}}$MnO$_{\textbf 3}$ (2008)

Kida, N., Yamasaki, Y., Shimano, R., Arima, T., Tokura, Y.

A broad continuum-like spin excitation (1--10 meV) with a peak structure around 2.4 meV has been observed in the ferroelectric $ab$ spiral spin phase of Gd$_{0.7}$Tb$_{0.3}$MnO$_3$ by using terahertz...

Electrically driven spin excitation in a ferroelectric magnet DyMnO_3 (2007)

Kida, N., Ikebe, Y., Takahashi, Y., He, J. P., Kaneko, Y., Yamasaki, Y., ...

Temperature (5--250 K) and magnetic field (0--70 kOe) variations of the low-energy (1--10 meV) electrodynamics of spin excitations have been investigated for a complete set of light-polarization...

Ferroelectric properties controlled by magnetic fields in DyMn2O5 (2004)

Higashiyama, D., Kida, N., Miyasaka, S., Arima, T., Tokura, Y.

Cross-correlation between magnetic and dielectric properties has been attracting renewed interest because of the fundamental as well as technological importance of controlling the electric (magnetic)...

Partial and macroscopic phase coherences in underdoped Bi${}_{2}$Sr${}_{2}$CaCu${}_{2}$O${}_{8+{\delta}}$ thin film (2001)

Murakami, H., Kiwa, T., Kida, N., Tonouchi, M., Uchiyama, T., Iguchi, I., ...

A combined study with use of time-domain pump-probe spectroscopy and time-domain terahertz transmission spectroscopy have been carried out on an underdoped Bi$_2$Sr$_2$CaCu$_2$O$_{8+{\delta}}$ thin...

Terahertz radiation from magnetoresistive Pr$_{\text{0.7}}$Ca$_{\text{0.3}}$MnO$_{\text3}$ thin films (2000)

Kida, N., Tonouchi, M.

Terahertz (THz) radiation with its spectrum extending up to 1 THz has been observed by an illumination of femtosecond optical pulses to optical switching devices fabricated on magnetoresistive...

Low-energy charge dynamics in La$_{\text{0.7}}$Ca$_{\text{0.3}}$MnO$_{\text3}$: THz time-domain spectroscopic studies (2000)

Kida, N., Hangyo, M., Tonouchi, M.

Direct experimental estimations of the low-energy ($1.5\sim10$ meV) complex dielectric constants spectrum and its temperature variation have been investigated for La$_{0.7}$Ca$_{0.3}$MnO$_3$ thin...