Title :
Construction of magnetic infrared sensor utilizing ferrimagnetic film
Author :
Yoshida, T. ; Osada, H. ; Chiba, S. ; Kikuchi, Takashi ; Tayama, N. ; Seki, K. ; Matsuki, H.
Author_Institution :
Dept. of Electr. Eng., Iwate Univ., Morioka, Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
The magnetic infrared sensor (MIS) is a detector utilizing the pyromagnetic effect of ferrimagnetic film (FMF) with a low Curie temperature. When infrared rays are absorbed by the MIS, there is a magnetization change in the sensor. This change is read out by a magnetoresistance element and is converted into a voltage with a peak value that increases with a rise in infrared energy. This paper describes the construction of the MIS, and characterization of infrared rays
Keywords :
Curie temperature; infrared detectors; magnetic sensors; magnetic thin film devices; magnetisation; magnetocaloric effects; Curie temperature; ferrimagnetic film; infrared energy; magnetic infrared sensor; magnetization change; magnetoresistance element; pyromagnetic effect; Ferrimagnetic films; Ferrimagnetic materials; Infrared detectors; Infrared sensors; Magnetic sensors; Magnetization; Magnetoresistance; Sensor phenomena and characterization; Temperature sensors; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
