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    • 4. 发明授权
    • Magnetoelectric susceptibility measurement method and the system thereof
    • 磁电磁测量方法及其系统
    • US08275427B2
    • 2012-09-25
    • US12441380
    • 2007-10-05
    • Kee hoon KimYoon seok Oh
    • Kee hoon KimYoon seok Oh
    • G01R33/035
    • G01R33/16G01R33/035
    • Disclosed herein is a method and system for measuring magnetoelectric susceptibility. The system includes a magnet supplying a DC magnetic bias to a magnetoelectric sample, an AC drive coil applying an AC magnetic field to the magnetoelectric sample, a charge amplifier amplifying an electric charge signal of the magnetoelectric sample oscillating by the AC magnetic field, and a phase sensitive detector detecting the voltage signal produced by the charge amplifier while supplying induction current to the AC drive coil. Accordingly, it is possible to provide a highly sensitive system for measuring magnetoelectric susceptibility, which is essential for research on multiferroic and magnetoelectric bulk and thin film materials at room temperature, and can also operate in the physical property measurement system (PPMS, manufactured by Quantum Design Co., Ltd.) for measurements under low temperature and high magnetic field environments.
    • 本文公开了一种用于测量磁电易感性的方法和系统。 该系统包括向磁电样品提供DC磁偏置的磁体,向磁电样品施加AC磁场的AC驱动线圈,放大由AC磁场振荡的磁电样品的电荷信号的电荷放大器,以及 检测由电荷放大器产生的电压信号,同时向AC驱动线圈提供感应电流。 因此,可以提供用于测量磁致电敏感性的高灵敏度系统,这对室温下的多铁磁体和薄膜材料的研究至关重要,并且还可以在物理性能测量系统(PPMS,Quantum 设计有限公司),用于在低温和高磁场环境下进行测量。
    • 9. 发明申请
    • MAGNETOELECTRIC SUSCEPTIBILITY MEASUREMENT METHOD AND THE SYSTEM THEREOF
    • 磁电力可靠性测量方法及其系统
    • US20090270262A1
    • 2009-10-29
    • US12441380
    • 2007-10-05
    • Kee hoon KimYoon seok Oh
    • Kee hoon KimYoon seok Oh
    • G01R33/035G01R33/16
    • G01R33/16G01R33/035
    • Disclosed herein is a method and system for measuring magnetoelectric susceptibility. The system includes a magnet supplying a DC magnetic bias to a magnetoelectric sample, an AC drive coil applying an AC magnetic field to the magnetoelectric sample, a charge amplifier amplifying an electric charge signal of the magnetoelectric sample oscillating by the AC magnetic field, and a phase sensitive detector detecting the voltage signal produced by the charge amplifier while supplying induction current to the AC drive coil. Accordingly, it is possible to provide a highly sensitive system for measuring magnetoelectric susceptibility, which is essential for research on multiferroic and magnetoelectric bulk and thin film materials at room temperature, and can also operate in the physical property measurement system (PPMS, manufactured by Quantum Design Co., Ltd.) for measurements under low temperature and high magnetic field environments.
    • 本文公开了一种用于测量磁电易感性的方法和系统。 该系统包括向磁电样品提供DC磁偏置的磁体,向磁电样品施加AC磁场的AC驱动线圈,放大由AC磁场振荡的磁电样品的电荷信号的电荷放大器,以及 检测由电荷放大器产生的电压信号,同时向AC驱动线圈提供感应电流。 因此,可以提供用于测量磁致电敏感性的高灵敏度系统,这对室温下的多铁磁体和薄膜材料的研究至关重要,并且还可以在物理性能测量系统(PPMS,Quantum 设计有限公司),用于在低温和高磁场环境下进行测量。