Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 46, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/46/9/092002
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Funding
- National Research Foundation of Korea (NRF)
- Korean Ministry of Education Science and Technology (MEST) [2012R1A1A2A10041947]
- converging Research Center Program
- National Creative Research Initiative [2010-0018300]
- Fundamental R&D Program for Core Technology of Materials
- NRF
- Korea Government (MEST) [2011-0010905]
- [2012K001435]
- National Research Foundation of Korea [2011-0010905, 2012R1A1A2A10041947, 2010-0018300] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We have characterized the magnetoelectric (ME) properties of Pb(ZrTi)O-3/LaNiO3/Ni (PZT/LNO/Ni) composites, which are fabricated using aerosol deposition. LNO acted as the bottom electrode for the PZT film and could effectively transfer the stress generated through the magnetostrictive effect of Ni into the piezoelectric PZT film. The PZT/LNO/Ni ME structure exhibits an ME coefficient alpha(E31) = 1Vcm(-1) Oe(-1) at a very low bias magnetic field of 30 Oe and shows 8.5Vcm(-1) Oe(-1) at a magneto-mechanical resonance frequency of 204 kHz corresponding to the Ni substrate. These huge ME coefficients are attributed to the improved coupling between the magnetostrictive Ni layer and the piezoelectric PZT thick film via the LNO layer, which is possible due to similar mechanical impedances of Ni, LNO and PZT.
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