237 citations · 737 across the 34 of their papers we have counts for
5 papers · 1 filter
Magnetic Domain Patterns Depending on the Sweeping Rate of Magnetic Fields
Kazue Kudo, Michinobu Mino, Katsuhiro Nakamura
The domain patterns in a thin ferromagnetic film are investigated in both experiments and numerical simulations. Magnetic domain patterns under a zero field are usually observed af…
Role of an intermediate state in homogeneous nucleation
Takaaki Monnai, Ayumu Sugita, Katsuhiro Nakamura
We explore the role of an intermediate state (phase) in homogeneous nucleation phenomenon by examining the decay process through a doubly-humped potential barrier. As a generic mod…
Can the Landau-Lifshitz equation explain the spin-wave instability in ferromagnetic thin films for parallel pumping?
Kazue Kudo, Katsuhiro Nakamura
Spin-wave instability is studied analytically in the case of parallel pumping for thin films under external field perpendicular to the film plane. It is examined whether the instab…
Levitation of Bose-Einstein condensates induced by macroscopic non-adiabatic quantum tunneling
Katsuhiro Nakamura, Akihisa Kohi, Hisatsugu Yamasaki +1
We study the dynamics of two-component Bose-Einstein condensates trapped in different vertical positions in the presence of an oscillating magnetic field. It is shown here how tuni…
Spin-wave instability for parallel pumping in ferromagnetic thin films under oblique field
Kazue Kudo, Katsuhiro Nakamura
Spin-wave instability for parallel pumping is studied theoretically. The spin-wave instability threshold is calculated in ferromagnetic thin films under oblique field which has an…