Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 90, Issue 2, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.7566/JPSJ.90.024710
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Funding
- JSPS KAKENHI [17K19090, 20H02829]
- Grants-in-Aid for Scientific Research [20H02829, 17K19090] Funding Source: KAKEN
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We analyzed the dielectric glasslike state of the spin- and charge-ordered system Lu2Fe3O7, and found aging and memory effects of resistivity. Numerical analysis with equivalent electric circuits explained the glassy nature of electric and dielectric properties, as well as the distribution variations of charge- and magnetic-ordered domains underlying the glass nature.
We report an analysis of the dielectric glasslike state of the spin- and charge-ordered system Lu2Fe3O7, which has structural and physical properties analogous to those of the electronic ferroelectrics RFe2O4 (R: rare earth). Aging and memory effects of resistivity were found in the electric impedance response. We performed a numerical analysis with equivalent electric circuits that have a logarithmic Gaussian distribution of resistance and capacitance. The distribution parameters well explained the glassy nature of the electric and dielectric properties between 100 and 200 K and the distribution variations of charge- and magnetic-ordered domains underlying the glass nature.
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