Simulation of artificial magnetic materials using lattices of loaded molecules

James Aberle, David A. Buchanan, William E. McKinzie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Presented are numerical studies of the magnetic permeability for arrays of artificial magnetic molecules simulated using a time domain TLM code. These artificial magnetic materials consist of a three dimensional periodic lattice of electrically small loaded loops suspended in a non-magnetic host medium. For this class of artificial magnetic media, we demonstrate good agreement between the permeability computed using a simple circuit theory model, and that computed using a full wave TLM simulation. This close agreement suggests that the salient physics for this type of artificial magnetic media may be well modeled using simple lumped equivalent circuits. A closed form expression is derived for the effective media permeability as a function of the molecular circuit loads. When molecules are uniformly loaded with lossless capacitors, the artificial media exhibits a Lorentzian response with a resonance (μ τ → ∞) below which the media is paramagnetic (μ τ>1) and above which the media is diamagnetic (μ τ<1). Resonant frequency, and magnetic permeability, can be adjusted by controlling the load capacitance.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages188-196
Number of pages9
Volume3795
StatePublished - 1999
EventProceedings of the 1999 Terahertz and Gigahertz Photonics - Denver, CO, USA
Duration: Jul 19 1999Jul 23 1999

Other

OtherProceedings of the 1999 Terahertz and Gigahertz Photonics
CityDenver, CO, USA
Period7/19/997/23/99

Fingerprint

Magnetic permeability
Magnetic materials
magnetic materials
Molecules
Circuit theory
Equivalent circuits
molecules
Natural frequencies
Capacitors
Capacitance
Physics
simulation
Networks (circuits)
permeability
magnetic permeability
equivalent circuits
resonant frequencies
capacitors
capacitance
physics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Aberle, J., Buchanan, D. A., & McKinzie, W. E. (1999). Simulation of artificial magnetic materials using lattices of loaded molecules. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3795, pp. 188-196). Society of Photo-Optical Instrumentation Engineers.

Simulation of artificial magnetic materials using lattices of loaded molecules. / Aberle, James; Buchanan, David A.; McKinzie, William E.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3795 Society of Photo-Optical Instrumentation Engineers, 1999. p. 188-196.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Aberle, J, Buchanan, DA & McKinzie, WE 1999, Simulation of artificial magnetic materials using lattices of loaded molecules. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3795, Society of Photo-Optical Instrumentation Engineers, pp. 188-196, Proceedings of the 1999 Terahertz and Gigahertz Photonics, Denver, CO, USA, 7/19/99.
Aberle J, Buchanan DA, McKinzie WE. Simulation of artificial magnetic materials using lattices of loaded molecules. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3795. Society of Photo-Optical Instrumentation Engineers. 1999. p. 188-196
Aberle, James ; Buchanan, David A. ; McKinzie, William E. / Simulation of artificial magnetic materials using lattices of loaded molecules. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3795 Society of Photo-Optical Instrumentation Engineers, 1999. pp. 188-196
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