Tunable polarity of the Casimir force based on saturated ferrites

Journal Article · Sat Jan 15 00:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.012517· OSTI ID:21529076

Ran, Zeng ^[1]; Yaping, Yang ^[2]

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1. School of Telecommunication, Hangzhou Dianzi University, Hangzhou 310018 (China)
2. Department of Physics, Tongji University, Shanghai 200092 (China)

We study the polarity of the Casimir force between two different parallel slabs separated by vacuum when the saturated ferrite materials under the influence of an external magnetic field are taken into consideration. Between the ordinary dielectric slab and the ferrite slab, repulsive Casimir force may be observed by adjusting the applied magnetic field. For the ferrite material, we consider the frequency dependence of the permeability modified by the external magnetic field to analyze the formation of the repulsive Casimir force. The restoring force, which means the transition of the force polarity from repulsion to attraction with the increasing slab separation, can also be obtained between two different ferrite slabs.

• OSTI ID: 21529076
• Journal Information: Physical Review. A, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevA.83.012517; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
74 ATOMIC AND MOLECULAR PHYSICS
CASIMIR EFFECT
DIELECTRIC MATERIALS
FERRITES
FREQUENCY DEPENDENCE
MAGNETIC FIELDS
PERMEABILITY
SLABS
FERRIMAGNETIC MATERIALS
IRON COMPOUNDS
MAGNETIC MATERIALS
MATERIALS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS