Charge-driven transtive devices via electric field control of magnetism in a helimagnet

Yisheng Chai, Dashan Shang, SaeHwan Chun, Young Sun, KeeHoon Kim

Transtor and memtranstor are the fourth basic linear and memory elements, which allows direct coupling of charge (q) to magnetic flux (φ) via linear and non-linear ME effects, respectively. It is found here that large variation of magnetization by electric field is realized in both linear and nonlinear hysteretic styles in a magnetoelectric Y-type hexaferrite Ba0.5Sr1.5Zn2(Fe0.92Al0.08)12O22 single-crystal. Moreover, based on the spin current model, the underlying microscopic mechanisms for generating the two types of linear and nonlinear M vs E curves are understood as E induced changes of cone angle and sign of P respectively, establishing the charge-driven transtor and memtranstor in the Y-type hexaferrite system. This work points to a promising pathway to develop unique circuit functionalities using the magnetoelectric materials.