Title of article :
Magnetization reversal and electric transport in ferromagnetic nanowires
Author/Authors :
Ono، نويسنده , , T and Ooka، نويسنده , , Y and Kasai، نويسنده , , S and Miyajima، نويسنده , , H and Nakatani، نويسنده , , N and Hayashi، نويسنده , , N and Shigeto، نويسنده , , K and Mibu، نويسنده , , K and Shinjo، نويسنده , , T، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Pages :
7
From page :
126
To page :
132
Abstract :
A method for magnetization reversal measurements in submicron magnetic wires was developed by utilizing the giant magnetoresistance effect, which enables us to determine a domain wall position as a function of time, and allows to evaluate the propagation velocity of the domain wall easily. It was found that the magnetization reversal in a wire occurs in association with the propagation of a single domain wall and that an artificial neck introduced into the wire acts as a pinning site of the magnetic domain wall. Injection of the magnetic domain wall from one end of the wire is demonstrated. Results on electric resistance measurements down to 20 mK for ultranarrow Ni wires are also presented. An increase of resistance proportional to T−1/2 was observed in a temperature range from 10 K to 80 mK. The result is discussed in terms of the electron–electron interaction and the weak localization effects.
Journal title :
MATERIALS SCIENCE & ENGINEERING: B
Serial Year :
2001
Journal title :
MATERIALS SCIENCE & ENGINEERING: B
Record number :
2137437
Link To Document :
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