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    • 7. 发明公开
    • Method for ultra-fast controlling of a magnetic cell and related devices
    • Verfahren zur superschnellen Steuerung magnetischer Zelle sowiezugehörigeVorrichtungen
    • EP1548702A1
    • 2005-06-29
    • EP03447312.4
    • 2003-12-24
    • INTERUNIVERSITAIR MICROELEKTRONICA CENTRUM VZW
    • Eyckmans, Wouter
    • G10K11/36G01R33/02H01L41/00G11C11/16H01F10/26H01F10/32H03K19/16
    • G01R33/02B82Y25/00G11C11/161G11C11/1673G11C11/1675H01F10/193H01F10/26H01F10/3213H01F10/3254H01F10/3268H01L43/08H03B15/006H03H2/001H03H9/02574H03H9/02645H03H9/02976H03H9/135H03H9/6486H03K19/19
    • The present invention relates to a device and corresponding method for ultrafast controlling of the magnetization of a magnetic element. A device (100) includes a surface acoustic wave generating means (102), a transport layer (104), which is typically functionally and partially structurally comprised in said SAW generating means (102), and at least one ferromagnetic element (106). A surface acoustic wave is generated and propagates in a transport layer (104) which typically consists of a piezo-electric material. Thus, strain is induced in the transport layer (104) and in the ferromagnetic element (106) in contact with this transport layer (104). Due to magneto elastic coupling this generates an effective magnetic field in the ferromagnetic element (106). If the surface acoustic wave has a frequency substantially close to the ferromagnetic resonance (FMR) frequency ν FMR the ferromagnetic element (106) is absorbed well and the magnetisation state of the element can be controlled with this FMR frequency. The device can be used in an RF-magnetic resonator, a sensor and a camera. The corresponding method can be used for ultrafast reading-out and switching of magnetic components and in magnetic logic.
    • 本发明涉及一种用于超快速控制磁性元件的磁化的装置和相应的方法。 一种装置(100)包括表面声波发生装置(102),通常在功能上和部分结构上包括在所述SAW发生装置(102)中的传输层(104)和至少一个铁磁元件(106)。 生成表面声波并在通常由压电材料组成的传输层(104)中传播。 因此,在与该传输层(104)接触的传输层(104)和铁磁元件(106)中诱发应变。 由于磁弹性耦合,这在铁磁元件(106)中产生有效的磁场。 如果表面声波具有基本上接近铁磁共振(FMR)频率nu FMR的频率,则铁磁元件(106)被良好地吸收并且可以用该FMR频率来控制元件的磁化状态。 该器件可用于射频磁共振器,传感器和相机。 相应的方法可用于磁性部件和磁性逻辑的超快速读出和切换。
    • 8. 发明申请
    • Method for ultra-fast controlling of a magnetic cell and related devices
    • 用于超快速控制磁性电池及相关装置的方法
    • US20070183190A1
    • 2007-08-09
    • US10584699
    • 2004-12-24
    • Wouter EyckmansLiesbet Lagae
    • Wouter EyckmansLiesbet Lagae
    • G11C11/15
    • G01R33/02B82Y25/00G11C11/161G11C11/1673G11C11/1675H01F10/193H01F10/26H01F10/3213H01F10/3254H01F10/3268H01L43/08H03B15/006H03H2/001H03H9/02574H03H9/02645H03H9/02976H03H9/135H03H9/6486H03K19/19
    • The present invention relates to a device and corresponding method for ultrafast controlling of the magnetization of a magnetic element. A device (100) includes a surface acoustic wave generating means (102), a transport layer (104), which is typically functionally and partially structurally comprised in said SAW generating means (102), and at least one ferromagnetic element (106). A surface acoustic wave is generated and propagates in a transport layer (104) which typically consists of a piezo-electric material. Thus, strain is induced in the transport layer (104) and in the ferromagnetic element (106) in contact with this transport layer (104). Due to magneto elastic coupling this generates an effective magnetic field in the ferromagnetic element (106). If the surface acoustic wave has a frequency substantially close to the ferromagnetic resonance (FMR) frequency νFMR the ferromagnetic element (106) is absorbed well and the magnetisation state of the element can be controlled with this FMR frequency. The device can be used in an RF-magnetic resonator, a sensor and a camera. The corresponding method can be used for ultrafast reading-out and switching of magnetic components and in magnetic logic.
    • 本发明涉及一种用于超快速控制磁性元件的磁化的装置和相应的方法。 一种装置(100)包括表面声波产生装置(102),通常在功能上和部分结构上包括在所述SAW发生装置(102)中的传输层(104)和至少一个铁磁元件(106)。 生成表面声波并在通常由压电材料组成的传输层(104)中传播。 因此,在与该传输层(104)接触的传输层(104)和铁磁元件(106)中诱发应变。 由于磁弹性耦合,这在铁磁元件(106)中产生有效的磁场。 如果表面声波具有基本上接近铁磁共振(FMR)频率的频率,则铁磁元件(106)被良好地吸收并且可以用该FMR频率来控制元件的磁化状态 。 该器件可用于射频磁共振器,传感器和相机。 相应的方法可用于磁性部件的超快速读出和切换以及磁逻辑。