公开(公告)号：US5952094A

公开(公告)日：1999-09-14

申请号：US179836

申请日：1994-01-07

Applicant: Hans W. Van Kesteren ,  Wouter B. Zeper ,  Friedrich J. A. Den Broeder ,  Johannes M. Kerkhof

Inventor： Hans W. Van Kesteren ,  Wouter B. Zeper ,  Friedrich J. A. Den Broeder ,  Johannes M. Kerkhof

IPC: G11B11/10 ,  G11B11/105 ,  H01F10/16 ,  G11B5/66

CPC classification number: G11B11/10591 ,  Y10S428/90 ,  Y10T428/265

Abstract: The addition of Os or Re to the Co layers of a magneto-optical recording medium comprising a Co/X multilayer, where X=Pt, Pd, Au, Ni or Ru, results in a reduction of both the Curie temperature and the magnetization. By virtue thereof, the rewritability of the medium is improved and higher write frequencies can be employed.

Abstract translation: 将包含Co / X多层（其中X = Pt，Pd，Au，Ni或Ru）的磁光记录介质的Co层添加到Co层中导致居里温度和磁化强度都降低。 由此，提高了介质的可重​​写性，并且可以采用更高的写入频率。

公开(公告)号：US06101298A

公开(公告)日：2000-08-08

申请号：US37892

申请日：1998-03-10

Applicant: Friedrich J. A. Den Broeder ,  Ralph M. N. Hanzen ,  Peter A. Duine ,  Reiner M. Jungblut ,  Cornelis Draijer ,  Freddy Roozeboom ,  Paul Van Der Sluis

Inventor： Friedrich J. A. Den Broeder ,  Ralph M. N. Hanzen ,  Peter A. Duine ,  Reiner M. Jungblut ,  Cornelis Draijer ,  Freddy Roozeboom ,  Paul Van Der Sluis

IPC: G02F1/01 ,  G02F1/15 ,  G02F1/17 ,  G02F3/02 ,  H03K17/78 ,  G02B6/32

CPC classification number: G02F1/17 ,  G02F1/1523 ,  G02F1/0147 ,  G02F2202/34

Abstract: A description is given of an optical switching device (1) comprising a transparent substrate (3), a switching film (5) of a hydride compound of a trivalent transition or rare earth metal having a thickness of 300 nm, and a palladium capping layer (7) having a thickness of 30 nm. The capping layer is in contact with hydrogen. An electric current through the switching film (5) can be switched on and off between the terminals (9, 11). Joule heating of the switching film (5) causes a rapid transition from the transparent trihydride state to the absorbing dihydride state. By switching off the current, the switching film (5) cools down, which results in the formation of the absorbing dihydride state. The conversion between both states is reversible and can be repeated many times. The device can be used for controlling light beams, or it can be used in or for a display. Optionally, cooling of the switching film (5) is obtained with a Peltier element in thermal contact with the switching film (5).

Abstract translation: 说明了包括透明基板（3），厚度为300nm的三价过渡金属或稀土金属的氢化物化合物的开关膜（5）和钯封盖层（1）的光开关装置（1） （7），厚度为30nm。 封盖层与氢接触。 可以在端子（9,11）之间接通和断开通过开关薄膜（5）的电流。 开关膜（5）的焦耳加热导致从透明三氢化物状态到吸收二氢化态的快速转变。 通过切断电流，开关膜（5）冷却，这导致形成吸收二氢化物状态。 两种状态之间的转换是可逆的，可重复多次。 该装置可用于控制光束，或者可以用于显示器或用于显示器。 可选地，通过与开关膜（5）热接触的珀耳贴元件来获得开关薄膜（5）的冷却。

公开(公告)号：US4678721A

公开(公告)日：1987-07-07

申请号：US869483

申请日：1986-06-02

Applicant: Friedrich J. A. den Broeder ,  Henricus J. G. Draaisma ,  Alexander Kahle

Inventor： Friedrich J. A. den Broeder ,  Henricus J. G. Draaisma ,  Alexander Kahle

IPC: G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/673 ,  G11B5/85 ,  B21C37/00

CPC classification number: G11B5/66 ,  Y10S428/928 ,  Y10T428/12438 ,  Y10T428/12465 ,  Y10T428/12569 ,  Y10T428/12597 ,  Y10T428/12632 ,  Y10T428/12674 ,  Y10T428/12861 ,  Y10T428/12875

Abstract: The invention provides a magnetic recording medium comprising a substrate of a nonmagnetic material bearing a thin magnetic layer with perpendicular anistropy. The magnetic thin layer comprises alternate layers of Pd and Co. The signal-to-noise ratio upon reading the stored information is considerably improved in that the thicknesses of the individual layers of Pd are between 0.2 and 2.0 nm and that the individual layers of Co consist of at least one monolayer of Co atoms and have thicknesses which are smaller than 0.3 nm.The thin magnet layer may be manufactured, for example, by electron beam vacuum vapor deposition of the individual layers of Pd and Co.

公开(公告)号：US5691865A

公开(公告)日：1997-11-25

申请号：US767461

申请日：1996-12-16

Applicant: Mark T. Johnson ,  Friedrich J. A. Den Broeder ,  Jelto W. Smits

Inventor： Mark T. Johnson ,  Friedrich J. A. Den Broeder ,  Jelto W. Smits

IPC: G11C11/14 ,  G11B5/00 ,  G11B5/09 ,  G11B5/127 ,  G11B5/245 ,  G11B5/31 ,  G11B5/39 ,  G11B5/465 ,  G11B9/00 ,  G11C11/15 ,  H01F10/08 ,  H01F10/30 ,  H01F10/32 ,  H01L43/00 ,  G11B5/33

CPC classification number: B82Y25/00 ,  G11B5/00 ,  G11B5/127 ,  G11B5/245 ,  G11B5/31 ,  G11B5/3903 ,  G11B5/465 ,  G11C11/15 ,  H01F10/3254 ,  G11B2005/0008

Abstract: A device and method for controllably locally altering the magnetization direction in a body of magnetic material, whereby a layer of at least one of non-metallic material and a semi-metallic material is disposed on a surface of the body, on which layer is provided a body of magnetic material having a fixed magnetization direction, whereby both bodies of magnetic material are magnetically coupled across the interposed layer, the nature of this magnetic coupling being locally alterable by means of locally subjecting the layer to a controllable electric field.

Abstract translation: 一种用于可控地局部地改变磁性材料体中的磁化方向的装置和方法，由此将非金属材料和半金属材料中的至少一种的层设置在主体的表面上，在该表面上设置有 具有固定的磁化方向的磁性材料体，由此两个磁性材料体都被磁耦合在插入的层之间，这种磁耦合的性质通过局部地使该层受到可控电场的局部改变。

公开(公告)号：US5109375A

公开(公告)日：1992-04-28

申请号：US384587

申请日：1989-07-24

Applicant: Franciscus J. A. M. Greidanus ,  Peter F. Carcia ,  Wouter B. Zeper ,  Friedrich J. A. den Broeder ,  Willem F. Godlieb

Inventor： Franciscus J. A. M. Greidanus ,  Peter F. Carcia ,  Wouter B. Zeper ,  Friedrich J. A. den Broeder ,  Willem F. Godlieb

IPC: G11B11/10 ,  G11B11/00 ,  G11B11/105

CPC classification number: G11B11/10582

Abstract: A record carrier for thermomagnetic recording of information and magneto-optical readout of the recorded information. The record carrier includes a substrate and a recording layer thereon in the form of multi-layers of magnetic and non-magnetic material, the magnetic layers predominately containing cobalt and the non-magnetic layers predominantly containing transition metal. The magnetic and non-magnetic layers alternate, and the overall thickness of the complete multi-layer recording layer is less than 75 nm. Such a recording layer achieves a significant improvement in both thermomagnetic write properties and magneto-optical read properties.