Temperature-Dependent Lag in Polycrystalline Yttrium-Iron Garnet

doi:10.1063/1.2185939

Title: Temperature-Dependent Lag in Polycrystalline Yttrium-Iron Garnet

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Abstract

Certain samples of polycrystalline yttrium--iron garnet are characterized by a room-temperature permesbility spectrum having two regions of dispersion, one at nmicrowaves, the other at rf frequency. The former dispersion is identified as gyromagnetic in origin. The rf dispersion, which exhibits a temperature-activated shift to lower frequency with decreasing temperature, appears due to an electron-diffusion controlled domnin-wall relaxation. The activation energy for the process is 0.38 ev.

Authors:: Epstein, D. J.; Frackiewicz, B.

Publication Date:: Thu Jan 01 00:00:00 EST 1959

Research Org.:: Massachusetts Inst. of Tech., Cambridge, Mass.

Sponsoring Org.:: USDOE

OSTI Identifier:: 4250613

NSA Number:: NSA-13-013782

Resource Type:: Journal Article

Resource Relation:: Journal Name: Journal of Applied Physics; Journal Volume: 30; Journal Issue: 4; Other Information: Orig. Receipt Date: 31-DEC-59

Country of Publication:: Country unknown/Code not available

Language:: English

Subject:: PHYSICS AND MATHEMATICS; ALUMINUM SILICATES; CRYSTALS; DIFFRACTION; DIFFUSION; DIFFUSION LENGTH; ENERGY; EV RANGE; EXCITATION; FREQUENCY; GARNETS; GYROMAGNETIC RATIO; IRON; MAGNETIC MOMENTS; MICROWAVES; RADIO WAVES; RELAXATION; SPECTRA; SPIN; SUSCEPTIBILITY; TEMPERATURE; YTTRIUM

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                    Epstein, D. J., and Frackiewicz, B.. Temperature-Dependent Lag in Polycrystalline Yttrium-Iron Garnet.  Country unknown/Code not available: N. p., 1959. 
        Web.  doi:10.1063/1.2185939.

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                    Epstein, D. J., & Frackiewicz, B.. Temperature-Dependent Lag in Polycrystalline Yttrium-Iron Garnet.  Country unknown/Code not available.  doi:10.1063/1.2185939.

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                    Epstein, D. J., and Frackiewicz, B.. Thu .  
        "Temperature-Dependent Lag in Polycrystalline Yttrium-Iron Garnet".  Country unknown/Code not available.  doi:10.1063/1.2185939.

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@article{osti_4250613,

  title        = {Temperature-Dependent Lag in Polycrystalline Yttrium-Iron Garnet},

  author       = {Epstein, D. J. and Frackiewicz, B.},

  abstractNote = {Certain samples of polycrystalline yttrium--iron garnet are characterized by a room-temperature permesbility spectrum having two regions of dispersion, one at nmicrowaves, the other at rf frequency. The former dispersion is identified as gyromagnetic in origin. The rf dispersion, which exhibits a temperature-activated shift to lower frequency with decreasing temperature, appears due to an electron-diffusion controlled domnin-wall relaxation. The activation energy for the process is 0.38 ev.},

  doi          = {10.1063/1.2185939},

  journal      = {Journal of Applied Physics},

  number       = 4,

  volume       = 30,

  place        = {Country unknown/Code not available},

  year         = {Thu Jan 01 00:00:00 EST 1959},

  month        = {Thu Jan 01 00:00:00 EST 1959}

}

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DOI: 10.1063/1.2185939

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