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    Magnetic devices
    1.
    发明授权
    Magnetic devices 失效
    磁性装置

    公开(公告)号：US3648260A

    公开(公告)日：1972-03-07

    申请号：US3648260D

    申请日：1969-11-17

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： GYORGY ERNST M ,  SHERWOOD RICHARD C ,  UITERT LE GRAND G VAN

    IPC: C04B35/26 ,  G11C19/08 ,  H01F10/22 ,  G11B5/62

    CPC classification number: C04B35/2675 ,  G11C19/08 ,  G11C19/0858 ,  H01F10/22

    Abstract: Partial substitution of small amounts of cobalt may result in a reduction in size of ''''bubble'''' magnetic domains in a variety of canted antiferromagnetic materials exemplified by rare earth orthoferrites. The reduction in domain size is ordinarily accomplished by virtue of a shift in the magnetic reorientation temperature, permitting improved device operation in this temperature region.

    Abstract translation: 少量钴的部分取代可能导致在稀土正铁中列举的各种倾斜反铁磁材料中“气泡”磁畴的尺寸减小。 通常通过磁性重新定向温度的变化来实现畴尺寸的减小，从而允许在该温度区域中改进的器件操作。

    Devices based on induced dichroism
    2.
    发明授权
    Devices based on induced dichroism 失效
    基于诱导二色体的设备

    公开(公告)号：US3637289A

    公开(公告)日：1972-01-25

    申请号：US3637289D

    申请日：1969-03-07

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： DILLON JOSEPH F JR ,  GYORGY ERNST M ,  REMEIKA JOSEPH P

    IPC: G02F1/09 ,  G03G5/16 ,  G02F1/18

    CPC classification number: G03G5/16 ,  G02F1/091

    Abstract: Dichroism for light as well as magnetic anisotropy may be optically induced in a crystalline material manifesting spontaneous magnetic polarization within which a magnet cation of a valence state other than the nominal value is permitted and within which such an ion may occupy either of at least two crystallographically equivalent but magnetically in equivalent sites. An example of such a material is silicon-doped YIG in which Fe2 may occupy any of four octahedral sites. Devices based on this phenomenon are described.

    Abstract translation: 对于光的二色性以及磁各向异性可以在表现出自发磁极化的结晶材料中光学诱导，其中允许不同于标称值的价态的磁体阳离子，并且其中这样的离子可以占据至少两个晶体学 等效但磁力在等效位置。 这种材料的一个例子是硅掺杂的YIG，其中Fe 2+可以占据四个八面体位置中的任何一个。 描述了基于这种现象的设备。

    High q microwave cavity
    3.
    发明授权
    High q microwave cavity 失效
    高Q微波炉

    公开(公告)号：US3603899A

    公开(公告)日：1971-09-07

    申请号：US3603899D

    申请日：1969-04-18

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： GYORGY ERNST M ,  JAEGER RAYMOND E ,  SEIDEL HAROLD

    IPC: H01P1/207 ,  H01P1/208 ,  H01P7/06 ,  H03H9/00

    CPC classification number: H01P1/2084 ,  H01P1/207 ,  H01P7/06

    Abstract: A low loss microwave transmission structure composed of a section of waveguide within which is concentrically placed an array (one or more) of cylindrical sections of dielectric material with relative dielectric constant greater than four, spaced away from the walls by a significant fraction of the radius (at least of the order of 10 percent) and possessing appreciable discontinuities. In the dielectric loaded sections electromagnetic radiation is propagated primarily within the dielectric so that the losses observed are mainly a function of the dielectric material and are, to first order, insensitive to the wall composition or condition. In this most general form the structure can by synthesized as a low loss filter or equalizer. When operated at frequencies at which the unloaded waveguide is below cutoff a high-Q cavity can be formed. A single section cavity of this type has been used to measure the Q of the low loss high dielectric constant dielectrics. A particularly simple and easily adjustable coaxial input and output structure is available which couples strongly to the cylindrically symmetric TM01 mode, all other propagating modes being greatly disfavored.

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