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@ARTICLE{Shen:860289,
      author       = {Shen, Lvkang and Liu, Ming and Ma, Chunrui and Lu, Lu and
                      Fu, Huarui and You, Caiyin and Lu, Xiaoli and Jia, Chun-Lin},
      title        = {{E}nhanced bending-tuned magnetic properties in epitaxial
                      cobalt ferrite nanopillar arrays on flexible substrates},
      journal      = {Materials Horizons},
      volume       = {5},
      number       = {2},
      issn         = {2051-6355},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {FZJ-2019-01064},
      pages        = {230 - 239},
      year         = {2018},
      abstract     = {Herein, large-scale epitaxial (111) CoFe2O4 nanopillar
                      arrays with an average nanopillar diameter of ∼40–60 nm
                      and thicknesses of 26–700 nm have been obtained on
                      flexible fluorophlogopite substrates by chemically etching
                      the vertically aligned self-assembled CoFe2O4:MgO
                      nanocomposite thin films. The chemical etching process has
                      not affected the crystalline quality of the CoFe2O4 phase,
                      but results in volume shrinkage through the removal of the
                      surrounding MgO phase. Compared with the planar CoFe2O4
                      films, the nanopillar arrays show sharply declined
                      coercivity and enhanced saturation magnetization. Even the
                      thinnest nanoisland-shaped arrays (∼26 nm) retain a
                      relatively high saturation magnetization (∼90 emu cc−1),
                      nonzero coercivity (∼250 Oe), and remanence (∼30 emu
                      cc−1), which are promising for the requirements of weak
                      ferromagnetism in flexible devices. With an increase in the
                      bending radius, a strong and monotonous increase in
                      saturation/remanent magnetization has been found in the
                      nanopillar arrays. This reveals that the bending-induced
                      shape anisotropy as well as the intrinsic magnetocrystalline
                      anisotropy mainly dominate the tunable magnetic properties
                      in the CoFe2O4 nanopillar arrays. With strong bending, the
                      increment of remanent magnetization in the nanopillar arrays
                      can be as high as $98\%,$ exhibiting the huge potential of
                      these nanopillar arrays in future applications such as in
                      bending sensors and related devices.},
      cin          = {ER-C-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000433442800006},
      doi          = {10.1039/C7MH00939A},
      url          = {https://juser.fz-juelich.de/record/860289},
}