E-field tuning microwave frequency performance of Co2FeSi/lead zinc niobate-lead titanate magnetoelectric coupling composites
E-field tuning microwave frequency performance of Co2FeSi/lead zinc niobate-lead titanate magnetoelectric coupling composites
复制标题
Co2FeSi/铌锌酸铅-钛酸铅磁电耦合复合材料的电场调谐微波频率性能
DOI：
10.1063/1.3670979
复制
发表时间：
2012-04-01
影响因子：
3.2
通讯作者：
Sun, Nian X.
中科院分区：
文献类型：
--
作者：
Li, Shandong;Liu, Ming;Sun, Nian X.
在PbZnTiO 4-PbTiO 4单晶衬底上制备了Co2 FeSi Heusler合金纳米晶薄膜。结果表明，这种多铁性复合材料具有很强的连续电场（E-场）可调谐微波频率特性。随着电场强度从0增加到6 kV/cm，铁磁共振场H-r沿着易轴方向移动348 Oe，相当于58 Oe cm/kV，铁磁共振频率f（FMR）从2.2增加到6.1GHz，增加3.9GHz，增加率为177%;此外，阻尼常数α从0.0150减小到0.0085。这些特性表明，这种多铁性结构在电场可调谐微波器件的制造中是有前途的。(C)2012年美国物理学会。[doi：10.1063/1.3670979]
Nanocrystalline Co2FeSi Heusler alloy films were deposited on single crystal lead zinc niobate-lead titanate substrates. It is revealed that this multiferroic composite exhibits very strong continuously electric field (E-field) tunable microwave frequency characteristics. With an increase of the E-field intensity from 0 to 6 kV/cm, the ferromagnetic resonance field H-r shifts by 348 Oe along the easy axis direction, being equivalent to 58 Oe cm/kV, and the ferromagnetic resonance frequency f(FMR) dramatically increases from 2.2 to 6.1 GHz with an increment of 3.9 GHz or an increment ratio of 177%; moreover, the damping constant alpha decreases from 0.0150 to 0.0085. These features demonstrate that this multiferroic structure is promising in the fabrication of E-field tunable microwave components. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3670979]