TY - JOUR
T1 - Detection of magnetic moment in thin films with a home-made vibrating sample magnetometer
AU - Jordán, D.
AU - González-Chávez, D.
AU - Laura, D.
AU - León Hilario, L. M.
AU - Monteblanco, E.
AU - Gutarra, A.
AU - Avilés-Félix, L.
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018/6/15
Y1 - 2018/6/15
N2 - This paper explores the optimization of an array of pick-up coils in a home-made vibrating sample magnetometer for the detection of magnetic moment in thin films. Sensitivity function of a 4-coils Mallinson configuration was numerically studied for the determination of the physical dimensions that enhance the sensitivity of the magnetometer. By performing numerical simulations using the Biot-Savart law combined with the principle of reciprocity we were able to determine the maximum values of sensitivity and the influence of the separation of the coils on the sensitivity function. After the optimization of the pick-up coils, the vibrating sample magnetometer was able to detect the magnetic moment of a 100 nm-thickness Fe19Ni81 magnetic thin film along and perpendicular to the in-plane anisotropy easy axis. The implemented vibrating sample magnetometer is able to detect changes in the magnetic moment of ∼2 × 10-4 emu.
AB - This paper explores the optimization of an array of pick-up coils in a home-made vibrating sample magnetometer for the detection of magnetic moment in thin films. Sensitivity function of a 4-coils Mallinson configuration was numerically studied for the determination of the physical dimensions that enhance the sensitivity of the magnetometer. By performing numerical simulations using the Biot-Savart law combined with the principle of reciprocity we were able to determine the maximum values of sensitivity and the influence of the separation of the coils on the sensitivity function. After the optimization of the pick-up coils, the vibrating sample magnetometer was able to detect the magnetic moment of a 100 nm-thickness Fe19Ni81 magnetic thin film along and perpendicular to the in-plane anisotropy easy axis. The implemented vibrating sample magnetometer is able to detect changes in the magnetic moment of ∼2 × 10-4 emu.
KW - Magnetic thin films
KW - Magnetometry
KW - Principle of reciprocity
KW - Sensitivity function
KW - Vibrating sample magnetometer
UR - http://www.scopus.com/inward/record.url?scp=85041549307&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2018.01.088
DO - 10.1016/j.jmmm.2018.01.088
M3 - Artículo (Contribución a Revista)
AN - SCOPUS:85041549307
SN - 0304-8853
VL - 456
SP - 56
EP - 61
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
ER -