Electric-field control of nonvolatile magnetization in Co 40Fe 40B 20/Pb(Mg 1/3Nb 2/3) 0.7Ti 0.3O 3 structure at room temperature

Journal Article

Zhang, S, Y.G Zhao, P.S Li, J.J Yang, S Rizwan, J.X Zhang, J Seidel, T.L Qu, Y.J Yang, Z.L Luo, Q He, T Zou, Q.P Chen, J.W Wang, L.F Yang, Y Sun, Y.Z Wu, X Xiao, X.F Jin, J Huang, C Gao, X.F Han, Ramamoorthy Ramesh

10.1103/PhysRevLett.108.137203

We report a large and nonvolatile bipolar-electric-field-controlled magnetization at room temperature in a Co 40Fe 40B 20/Pb(Mg 1/3Nb 2/3) 0.7Ti 0.3O 3 structure, which exhibits an electric-field- controlled looplike magnetization. Investigations on the ferroelectric domains and crystal structures with in situ electric fields reveal that the effect is related to the combined action of 109°ferroelastic domain switching and the absence of magnetocrystalline anisotropy in Co 40Fe 40B 20. This work provides a route to realize large and nonvolatile magnetoelectric coupling at room temperature and is significant for applications. © 2012 American Physical Society.

Physical Review Letters

108

2012

00319007

cited By 247

Ramesh Lab