公开(公告)号：US08275427B2

公开(公告)日：2012-09-25

申请号：US12441380

申请日：2007-10-05

申请人： Kee hoon Kim ,  Yoon seok Oh

发明人： Kee hoon Kim ,  Yoon seok Oh

IPC分类号： G01R33/035

CPC分类号： G01R33/16 ,  G01R33/035

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20090270262A1

公开(公告)日：2009-10-29

申请号：US12441380

申请日：2007-10-05

申请人： Kee hoon Kim ,  Yoon seok Oh

发明人： Kee hoon Kim ,  Yoon seok Oh

IPC分类号： G01R33/035 ,  G01R33/16

CPC分类号： G01R33/16 ,  G01R33/035

摘要： 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.

摘要翻译： 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。