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Title: Electrical switching of the magnetic vortex circulation in artificial multiferroic structure of Co/Cu/PMN-PT(011)

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4990987· OSTI ID:1530291
 [1];  [1];  [2];  [2];  [1];  [3]; ORCiD logo [2];  [2];  [4];  [1]
  1. Univ. of California, Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Korea Research Institute of Standards and Science, Yuseong (Korea)
  4. Peking Univ., Beijing (China)

For this research, Co films and micron sized disks were grown on top of piezoelectric PMN-PT(011) and Cu/PMN-PT(001) substrates and investigated by the Magneto-Optic Kerr Effect and Photoemission Electron Microscopy. By applying an electric field in the surface normal direction, we find that the strain of the ferroelectric PMN-PT(011) substrate induces an in-plane uniaxial magnetic anisotropy in the Co overlayer. Under specific conditions, the Co magnetic vortex could be switched between clockwise and counter-clockwise circulations. The variations of the Co vortex switching were attributed to the variations of the ferroelectric domains under the Co disks. Lastly, we speculate that the switching of the magnetic vortex circulation is a dynamical process which may involve pulses of appropriate magnitude and duration of the uniaxial magnetic anisotropy delivered to the magnetic vortex.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1530291
Alternate ID(s):
OSTI ID: 1368602
Journal Information:
Applied Physics Letters, Vol. 110, Issue 26; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

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Cited By (10)

Complex strain evolution of polar and magnetic order in multiferroic BiFeO3 thin films journal September 2018
Controlling the anomalous Hall effect by electric-field-induced piezo-strain in Fe 40 Pt 60 /(001)-Pb(Mg 1/3 Nb 2/3 ) 0.67 Ti 0.33 O 3 multiferroic heterostructures journal January 2018
Reversible electrical-field control of magnetization and anomalous Hall effect in Co/PMN-PT hybrid heterostructures journal April 2018
Opportunities and challenges for magnetoelectric devices journal August 2019
Switching the chirality of a magnetic vortex deterministically with an electric field journal October 2018
Voltage control of magnetic single domains in Ni discs on ferroelectric BaTiO 3 journal May 2018
Disclosing odd symmetry, strain driven magnetic response of Co on Pt/PMN-PT (0 1 1) journal January 2019
Voltage control of magnetic single domains in Ni discs on ferroelectric BaTiO3 text January 2018
Switching the chirality of a magnetic vortex deterministically with an electric field text January 2018
Switching the chirality of a magnetic vortex deterministically with an electric field text January 2018

Figures / Tables (4)


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