研究目的
Investigating the electrical control of magnetism in Pb(Fe0.534W0.066Nb0.4)O3 (PFWN) for low-energy-consuming spintronic devices.
研究成果
The study demonstrates the existence of converse magnetoelectric coupling in PFWN through temperature-dependent Raman and magnetization studies. Electrical poling affects the magnetic properties of PFWN, indicating potential for magnetic switching applications in spintronics.
研究不足
The study is limited by the specific conditions under which the PFWN samples were poled and measured, and the potential for further optimization in the poling process to enhance the magnetoelectric coupling effect.
1：Experimental Design and Method Selection:
The study involves poling PFWN using a dc electric field to investigate the impact of induced strain on vibrational modes and magnetism through Raman spectroscopy and magnetic susceptibility measurements.
2：Sample Selection and Data Sources:
PFWN samples were prepared by the Columbite—solid-state reaction method using stoichiometric quantities of Pb(NO3)2, Fe2O3, WO3, and Nb2O5 powders.
3：List of Experimental Equipment and Materials:
Ocean Optics ID micro Raman spectrometer, 9 T PPMS-vibrating sample magnetometer (Quantum Design, USA), high-voltage dc power supply unit, and pure silicone fluid for the oil bath.
4：Experimental Procedures and Operational Workflow:
The samples were poled at room temperature with an electric field of 5 kV/cm. Raman spectra and magnetic properties were measured before and after poling.
5：Data Analysis Methods:
Gaussian curve fitting was used for Raman spectra analysis, and magnetization data were analyzed to observe changes due to poling.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
