Diamagnetic magnetocaloric effect due to a transversal oscillating magnetic field

The present Letter describes the magnetocaloric effect of a diamagnetic material with a magnetic field B∥ along the z axis and a transversal and oscillating field B⊥(≪B∥) parallel to the x–y plane. We show that the magnetocaloric potentials due to a change in B∥ are the same as those due to a change...

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Bibliographic Details
Published in:Physics letters. A 2014-05, Vol.378 (26-27), p.1903-1905
Main Author: Reis, M.S.
Format: Article
Language:English
Subjects:
Devices
Diamagnetism
Electronics
Magnetic fields
Oscillating
Permanent magnets
Planes
Solid state physics
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Summary:The present Letter describes the magnetocaloric effect of a diamagnetic material with a magnetic field B∥ along the z axis and a transversal and oscillating field B⊥(≪B∥) parallel to the x–y plane. We show that the magnetocaloric potentials due to a change in B∥ are the same as those due to a change in the frequency of B⊥. These results raise the possibility of building magnetocaloric devices without moving parts, since changing frequency is a simple electronic issue, while changing the field from permanent magnets depends on mechanical aspects. •Diamagnetic magnetocaloric effect due to a transversal and oscillating magnetic field.•Change frequency or change applied magnetic field produces the same magnetocaloric potentials.•It opens doors for magnetocaloric devices without moving parts.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2014.05.002