152 citations · 358 across the 7 of their papers we have counts for
7 papers
Magnetization control by angular momentum transfer from surface acoustic wave to ferromagnetic spin moments
R. Sasaki, Y. Nii, Y. Onose
The angular momentum interconversion between electron spin and other type of angular momenta is useful to develop new spintronic functionalities. The conversions from the angular m…
Surface acoustic wave coupled to magnetic resonance on a multiferroic CuBO
R. Sasaki, Y. Nii, Y. Onose
We observed surface acoustic wave (SAW) propagation on a multiferroic material CuBO with use of two interdigital transducers (IDTs). The period of IDT fingers is as short a…
Microwave Magneto-Chiral Effect in a Noncentro-symmetric Magnet CuB2O4
Y. Nii, R. Sasaki, Y. Iguchi +1
We have investigated microwave nonreciprocity in a noncentro-symmetric magnet CuB2O4. We simultaneously observed differently originated nonreciprocities; the classical magnetic dip…
Nonreciprocal propagation of surface acoustic wave in Ni/LiNbO3
R. Sasaki, Y. Nii, Y. Iguchi +1
We have investigated surface acoustic wave propagation in Ni/LiNbO hybrid devices. We have found the absorption and phase velocity are dependent on the sign of wave vector in a…
General Formalism for Magnetic Anisotropy Constants
Daisuke Miura, Ryo Sasaki, Akimasa Sakuma
Direct expressions for the magnetic anisotropy constants are given at a finite temperature from microscopic viewpoints. In the present derivation, it is assumed that the Hamiltonia…
Theoretical evaluation on the temperature dependence of magnetic anisotropy constants of Nd2Fe14B - Effects of exchange field and crystal field strength -
Ryo Sasaki, Daisuke Miura, Akimasa Sakuma
To identify the possible mechanism of coercivity (Hc) degradation of Nd-Fe-B sintered magnets, we study the roles of the exchange field acting on the 4f electrons in Nd ions and th…
Novel weak-ferromagnetic metallic state in heavily doped BaKMnAs
Jin-Ke Bao, Hao Jiang, Yun-Lei Sun +8
Heavily doped BaKMnAs (=0.19 and 0.26) single crystals were successfully grown, and investigated by the measurements of resistivity and anisotropic mag…