TY - JOUR
T1 - Correlation between saturation magnetostriction and damping constant in (Ni-Fe)1-xMx (M=Pt, Au, Pd, and Cr) films
AU - Endo, Yasushi
AU - Mitsuzuka, Yoshio
AU - Okawa, Kohei
AU - Shimada, Yutaka
AU - Yamaguchi, Masahiro
N1 - Funding Information:
The authors would like to thank Prof. S. Sugimoto and Associate Prof. N. Tezuka at Tohoku University for performing the e-beam lithography, Dr. T. Miyazaki at the same institution for EDX analyses, and Dr. H. Oura and Dr. K. Yanagi of Toei Scientific Industrial Corporation for measuring magnetostriction. This work was supported in part by the Storage Research Consortium (SRC) in Japan and a research grant from the Murata Science Foundation.
PY - 2011/10
Y1 - 2011/10
N2 - This paper describes our experimental investigation on a correlation between saturation magnetostriction and damping constant in 50-nm-thick (Ni-Fe)1-xMx (M=Pt, Au, Pd, and Cr; 0 < x < 0.12) films. The change in a with x is closely related with that of λs for every M: when M=Pt, Au, and Pd, a decreases almost monotonically with increasing λs, while it increases in (Ni-Fe)1-xCrx films. These results give clear evidence that a correlates with λs in (Ni-Fe)1-xM x films. These results also reveal that a can be controlled effectively by transition metal dopants. In addition, it should be pointed out that when adjusting a of magnetically soft films, particular attention must be paid to considerable change of magnetoelastic properties that leads to deterioration of magnetic softness.
AB - This paper describes our experimental investigation on a correlation between saturation magnetostriction and damping constant in 50-nm-thick (Ni-Fe)1-xMx (M=Pt, Au, Pd, and Cr; 0 < x < 0.12) films. The change in a with x is closely related with that of λs for every M: when M=Pt, Au, and Pd, a decreases almost monotonically with increasing λs, while it increases in (Ni-Fe)1-xCrx films. These results give clear evidence that a correlates with λs in (Ni-Fe)1-xM x films. These results also reveal that a can be controlled effectively by transition metal dopants. In addition, it should be pointed out that when adjusting a of magnetically soft films, particular attention must be paid to considerable change of magnetoelastic properties that leads to deterioration of magnetic softness.
KW - Coplanar waveguide (CPW) FMR
KW - Ni-Fe film
KW - damping constant
KW - saturation magnetostriction
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U2 - 10.1109/TMAG.2011.2158081
DO - 10.1109/TMAG.2011.2158081
M3 - Article
AN - SCOPUS:80053525090
SN - 0018-9464
VL - 47
SP - 3324
EP - 3327
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 10
M1 - 6027620
ER -