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DEVICES AND METHODS FOR CONTROLLlNG MAGNETIC ANISTROPY WITH LOCALIZED BIAXIAL STRAIN IN A PIEZOELECTRIC SUBSTRATE
DEVICES AND METHODS FOR CONTROLLlNG MAGNETIC ANISTROPY WITH LOCALIZED BIAXIAL STRAIN IN A PIEZOELECTRIC SUBSTRATE
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机译:用压电基体局部化的双轴应变控制磁环的装置和方法
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摘要
Devices and methods for controlling magnetic anisotropy and orientation of magnetic single domain structures between stable states are provided based on piezoelectric thin films and patterned electrodes. By using patterned electrodes, piezoelectric strain is manipulated to achieve a highly localized biaxial strain in a piezoelectric substrate and rotate the magnetic anisotropy of magnetic materials. Reorientation of a magnetic single domain between different stable states is accomplished by pulsing voltage across pairs of electrodes. Since only a small region surrounding the electrodes is strained, the methods can be applied to arrays of indexed magnetic elements and to piezoelectric thin films clamped to silicon base substrates.
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