45 citations · 112 across the 6 of their papers we have counts for
6 papers
Low temperature magnetism of gold nano particles contained in electrochemical sugar recognition system
Takayuki Goto, Y. Kitamoto, K. Matsui +6
Low temperature magnetic properties were investigated on the gold nano particles (GNP) with an average size of 11.5 nm, assembled with molecules of ruthenium complex (Ru0) and phen…
Magnetic anisotropy switching in (Ga,Mn)As with increasing hole concentration
K. Hamaya, T. Watanabe, T. Taniyama +3
We study a possible mechanism of the switching of the magnetic easy axis as a function of hole concentration in (Ga,Mn)As epilayers. In-plane uniaxial magnetic anisotropy along [11…
Dynamic relaxation of magnetic clusters in a ferromagnetic (Ga,Mn)As epilayer
K. Hamaya, T. Koike, T. Taniyama +3
A new scenario of the mechanism of intriguing ferromagnetic properties in Mn-doped magnetic semiconductor (Ga,Mn)As is examined in detail. We find that magnetic features seen in ze…
Ion Irradiation Control of Ferromagnetism in (Ga,Mn)As
H. Kato, K. Hamaya, T. Taniyama +2
We report on a promising approach to the artificial modification of ferromagnetic properties in (Ga,Mn)As using a Ga focused ion beam (FIB) technique. The ferromagnetic propert…
Effect of Ga irradiation on magnetic and magnetotransport properties in (Ga,Mn)As epilayers
H. Kato, K. Hamaya, Y. Kitamoto +2
We report on the magnetic and magnetotransport properties of ferromagnetic semiconductor (Ga,Mn)As modified by Ga ion irradiation using focused ion beam. A marked reduction i…
Mixed magnetic phases in (Ga,Mn)As epilayers
K. Hamaya, T. Taniyama, Y. Kitamoto +1
Two different ferromagnetic-paramagnetic transitions are detected in (Ga,Mn)As/GaAs(001) epilayers from ac susceptibility measurements: transition at a higher temperature results f…