The millimeter wave magneto-optics: new method for characterization of ferrites in the millimeter wave range

This paper presents the application of the magneto-optical method for the first time in the millimeter wave range for the characterization of ferrites. The magneto-optical measurements were realized with a specially built millimeter wave spectrometer. Backward wave oscillators were used as a source of tunable coherent radiation. It is demonstrated that this new method is capable of generating accurate millimeter wave dielectric and magnetic data for any type of ferrite material.

[1]  D. Polder On the Phenomenology of Ferromagnetic Resonance , 1948 .

[2]  E. M. Lifshitz,et al.  Electrodynamics of continuous media , 1961 .

[3]  E. H. Linfoot Principles of Optics , 1961 .

[4]  H. J. Hagger,et al.  Microwave Ferrites And Ferrimagnetics , 1962 .

[5]  C. Patton,et al.  Ultrasensitive Technique for Microwave Susceptibility Determination Down to 10−5 , 1972 .

[6]  F. Sandy,et al.  Microwave Characterization of Partially Magnetized Ferrites , 1974 .

[7]  F. Sandy,et al.  A Catalog of Low Power Loss Parameters and High Power Thresholds for Partially Magnetized Ferrites , 1974 .

[8]  M. Afsar Dielectric Measurements of Millimeter-Wave Materials , 1984 .

[9]  F. Shimabukuro,et al.  A Quasi-Optical Method for Measuring the Complex Permittivity of Materials , 1984 .

[10]  R. Clarke,et al.  The measurement of the properties of materials , 1986, Proceedings of the IEEE.

[11]  Characterisation of strontium hexaferrite for millimeter waves applications , 1986 .

[12]  W. Wilber,et al.  Effective linewidth measurements at 36 GHz in hexagonal and cubic ferrites , 1988 .

[13]  J. Nyenhuis,et al.  Off resonance loss measurements in ferrites at 35 GHz , 1989, International Magnetics Conference.

[14]  J. Adam,et al.  Thin-film ferrites for microwave and millimeter-wave applications , 1990 .

[15]  V. Varadan,et al.  Free-space measurement of complex permittivity and complex permeability of magnetic materials at microwave frequencies , 1990 .

[16]  J. R. Birch,et al.  An intercomparison of measurement techniques for the determination of the dielectric properties of solids at near millimetre wavelengths , 1991 .

[17]  Self-biasing circulators operating at K/subA/-band utilizing M-type hexagonal ferrites , 1992, 1992. Digests of Intermag. International Magnetics Conference.

[18]  C. Vittoria,et al.  Self-biasing circulators operating at K/sub a/-band utilizing M-type hexagonal ferrites , 1992 .

[19]  Daniel D. Stancil,et al.  Theory of magnetostatic waves , 1993 .

[20]  P. Kabos,et al.  High-field effective linewidth and eddy current losses in moderate conductivity single-crystal M-type barium hexagonal ferrite disks at 10-60 GHz , 1993 .

[21]  Karen N. Kocharyan Submillimeter electrodynamics of noncollinear antiferromagnets , 1994, Other Conferences.

[22]  E.M. Biebl,et al.  A free space technique for measuring the complex permittivity and permeability in the millimeter wave range , 1994, 1994 IEEE MTT-S International Microwave Symposium Digest (Cat. No.94CH3389-4).

[23]  A new free-wave dielectric and magnetic properties measurement system at millimetre wavelengths , 1994, 1994 IEEE MTT-S International Microwave Symposium Digest (Cat. No.94CH3389-4).

[24]  J. A. Weiss,et al.  Recoil magnetization in partially oriented hexaferrites , 1995 .

[25]  Erwin Biebl,et al.  A broadband free-space dielectric properties measurement system at millimeter wavelengths , 1996 .

[26]  L. Carin,et al.  Picosecond-pulse and millimeter-wave spectroscopy of barium ferrite , 1996 .

[27]  G. Melkov,et al.  Magnetization Oscillations and Waves , 1996 .

[28]  J. Krupka,et al.  Complex permeability of demagnetized microwave ferrites near and above gyromagnetic resonance , 1996 .

[29]  R. Lebourgeois,et al.  High Frequency Mn-Zn Power Ferrites , 1997 .

[30]  E. Schloemann Instrinsic low-field loss in microwave ferrites , 1998, 7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275).