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Abstract:
Nonvolatile control of perpendicular magnetic anisotropy (PMA) is of great technological importance for low-power spintronic devices. In this study, we successfully achieved ferroelastic strain-mediated nonvolatile tuning of PMA at room temperature in (Co/Pt)(3)/(1 1 1) Pb(Mg1/3Nb2/3)O-3-PbTiO3 multiferroic heterostructures. Electric field control of magnetic anisotropy was qualitatively studied by ferromagnetic resonance. The anisotropy could be reversibly flipped between low and high perpendicular states by electric field impulses. The application of a negative electric field to positively poled Pb(Mg1/3Nb2/3)O-3-PbTiO3 resulted in a significant enhancement of PMA up to 250 Oe, in which nonvolatile modulation contributed more than 150 Oe. The nonvolatile behavior is due to non-180 degrees ferroelastic domain switching in (1 1 1) Pb(Mg1/3Nb2/3)O-3-PbTiO3 as revealed by X-ray diffraction. Ferroelastic domain switching in multiferroic heterostructures is an effective way to nonvolatilely modulate PMA that will enable the realization of high-density and power-efficient spintronic memory.
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IEEE MAGNETICS LETTERS
ISSN: 1949-307X
Year: 2017
Volume: 8
1 . 5 6 8
JCR@2017
1 . 5 4 9
JCR@2020
ESI Discipline: PHYSICS;
ESI HC Threshold:120
JCR Journal Grade:3
CAS Journal Grade:4
Cited Count:
WoS CC Cited Count: 3
SCOPUS Cited Count: 4
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 5