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 .nu..sub.FMR the ferromagnetic
element (106) is absorbed well and the magnetization 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.