Current-voltage characteristics of lead zirconate titanate/nickelbilayered hollow cylindrical magnetoelectric composites

• Published in: Chinese physics B no. 2; pp. 429 - 434
• Main Author: 潘德安 张深根 田建军 孙俊赛 Alex A. Volinsky 乔利杰
• Format: Journal Article
• Language: English
• Published: 2010
• Subjects: 共振频率; 复合材料; 电压系数; 电流传感器; 电流电压特性; 空心圆柱; 锆钛酸铅
• ISSN: 1674-1056; 2058-3834

Current--voltage measurements obtained from lead zirconate titanate/nickel bilayered hollow cylindrical magnetoelectric composite showed that a sinusoidal current applied to the copper coil wrapped around the hollow cylinder circumference induces voltage across the lead zirconate titanate layer thickness. The current--voltage coefficient and the maximum induced voltage in lead zirconate titanate at 1~kHz and resonance （60.1~kHz） frequencies increased linearly with the number of the coil turns and the applied current. The resonance frequency corresponds to the electromechanical resonance frequency. The current--voltage coefficient can be significantly improved by optimizing the magnetoelectric structure geometry and/or increasing the number of coil turns. Hollow cylindrical lead zirconate titanate/nickel structures can be potentially used as current sensors.