Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tuning Ferroelectrics to Antiferroelectrics in Multiferroic
  LaxSr1-xFe12O19 Ceramics   The combination of antiferroelectricity (AFE) and ferromagnetism (FM) in one
structure would allow the development of new type of multiferroic candidates,
which be applicable not only in magnetoelectric memories but also in novel
energy storage devices. Here we propose a novel type of multiferroic candidate
LaxSr1-xFe12O19, whose room temperature state could betuned from ferroelectrics
(FE) to antiferroelectrics by changing x from 0 to 0.5. The emphasis of this
paper will be focused on the La0.5Sr0.5Fe12O19 system, in which full AFE and FM
coexist. The pure antiferroelectric behavior in La0.5Sr0.5Fe12O19 ceramics is
demonstrated by double polarization-electric field (P-E) hysteresis loops,
which are fully separated by a linear antiferroelectric AFE component with zero
net polarization. The material of La0.2Sr0.7Fe12O19 with the intermediate
composition exhibits a hybrid ferroelectric/antiferroelectric state. The
recoverable energy density of the antiferroelectric La0.5Sr0.5Fe12O19 phase
reaches 14.3 J/cm3. This material demonstrates strong magnetoelectric coupling
and giant magnetoresistance (GMR) effect. A 1.1T magnetic field generates
electronic polarization up to 0.95uC/cm2, reduce the resistance by 117%,
enhances dielectric constants by 540% and right shifts the maximum dielectric
loss peak by 208 kHz. The combined functional responses provide an opportunity
to develop novel multifunctional electric and energy storage devices.

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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: hep-th
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The categories of this paper are: stat
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The categories of this paper are: physics
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: quant-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph