Modulation of spin dynamics in Ni/Pb(Mg1/3Nb2/3)O3-PbTiO3 multiferroic heterostructure

• 作者: Hang XU Bo WANG Ji QI Mei LIU Fei TENG Linglong HU Yuan ZHANG Chaoqun QU Ming FENG
• 来源期刊: 先进陶瓷（英文版）
• 年，卷（期）: 2022,（3）
• 所属期刊栏目: Rapid Communication
• 页码范围: 515-521
• 页数: 7页
• 语种: 英文

摘要

Motivated by the fast-developing spin dynamics in ferromagnetic/piezoelectric structures,this study attempts to manipulate magnons(spin-wave excitations)by the converse magnetoelectric(ME)coupling.Herein,electric field(E-field)tuning magnetism,especially the surface spin wave,is accomplished in Ni/0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3(PMN-PT)multiferroic heterostructures.The Kerr signal(directly proportional to magnetization)changes of Ni film are observed when direct current(DC)or alternative current(AC)voltage is applied to PMN-PT substrate,where the signal can be modulated breezily even without extra magnetic field(H-field)in AC-mode measurement.Deserved to be mentioned,a surface spin wave switch of"1"(i.e.,"on")and"0"(i.e.,"off')has been created at room temperature upon applying an E-field.In addition,the magnetic anisotropy of heterostructures has been investigated by E-field-induced ferromagnetic resonance(FMR)shift,and a large 490 Oe shift of FMR is determined at the angle of 45° between H-field and heterostructure plane.