Dynamic in situ visualization of voltage-driven magnetic domain evolution in multiferroic heterostructures

Ya Gao, Jiamian Hu, Liang Wu, C. W. Nan

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Voltage control of magnetism in multiferroic heterostructures provides a promising solution to the excessive heating in spintronic devices. Direct observation of voltage-modulated magnetic domain evolution dynamics is desirable for studying the mechanism of the voltage control of magnetism at mesoscale, but has remained challenging. Here we explored a characterization method for the dynamic in situ evolution of pure voltage modulated magnetic domains in the heterostructures by employing the scanning Kerr microscopy function in the magneto optic Kerr effect system. The local magnetization reorientation of a Ni/PMN-PT heterostructure were characterized under sweeping applied voltage on the PMN-PT single crystal, and the results show that the magnetization rotation angle in the local regions is much greater than that obtained from macroscopic magnetization hysteresis loops.

Original languageEnglish (US)
Article number504005
JournalJournal of Physics Condensed Matter
Volume27
Issue number50
DOIs
StatePublished - Nov 27 2015

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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