多铁性材料中的磁电相互作用因具备广泛的应用前景而成为科学工作者的***个研究重点。在基于清华大学南策文教授实验室已有测量方法上，作进***步改进后推出了高度自动化的多铁性磁电测量系统。

该套系统允许用户直接测量样品正磁电系数大小及相位随着偏置直流磁场大小的变化、随外加交流磁场幅值大小和频率大小的变化、随样品与磁场夹角大小的变化、随不同温度的变化。

系统自带可视化全自动的高***操作软件，保证了用户在*短的时间内获取可靠的测量数据。

基本测量参数 

磁电信号测量精度范围：1uV(锁相)  
相位范围：-180 －－180

相位精度：1度
交流频率：1M Hz

直流磁场：±1T 
磁场控制精度：< 2 Oe
交流磁场：6 Oe 

自动转角度精度：1度

电阻率测量精度：0.5%
温度范围：90K－－300K
温度稳定度：±0.5K

不同温度下的磁电信号测量曲线：

薄膜样品的磁电信号测量曲线，幅值小于5uV

具有脚本功能的测量软件

Magnetoelectric interaction in multiferroic materials has become a research focus for scientists because of its wide application prospect.Based on the existing measurement methods in professor nan ce wen＇s laboratory of tsinghua university, a highly automated multi-ferromagnetic measurement system was developed.

The system allows the user to directly measure the size ａnd phase of the positive magnetoelectric coefficient of the sample with the size of the bias dc magnetic field, the magnitude ａnd frequency of the external ac magnetic field, the Angle between the sample ａnd the magnetic field, ａnd the temperature.

The system has visual automatic advanced operating software to ensure that the user can obtain reliable measurement data in the shortest time.

Basic measurement parameter

Magnetoelectric signal measurement accuracy range: 1uV(phase-locked)

Phase range: -180 －－180

Phase accuracy: 1 degree

Maximum ac frequency: 1M Hz

Maximum dc magnetic field: ±1T

Accuracy of magnetic field control: < 2 Oe

Maximum ac magnetic field: 6 Oe

Automatic rotation accuracy: 1 degree

Resistivity measurement accuracy: 0.5%

Temperature range: 90K－－300K

Temperature stability: ± 0.5k