Abnormal magnetocapacitance of multiferroic perovskite oxide Pb(Fe1/2Nb1/2)1-Ti O3 (x=0.48) crystal

Yao, Jia; Ma, Jing; Xu, Xiaoli; Han, Zichen; Wu, Zheng; Ismail, Muhammad; Haugen, Neale O.; Wang, Lang; Xu, Zhenying; Sheng, L.; Zou, Jun; Luo, Haosu

doi:10.1016/j.jallcom.2018.02.025

Cited by 3 publications

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“…The well-saturated P -E loop agrees well with Scott's report [21], in which he demonstrated that the non-ferroelectric bananas could give the P -E loop which is similar to the traditional ferroelectric materials [21], which served to debunk many papers which made claims of ferroelectricity in error due to confusing data. The pseudoferroelectric P -E loop of banana suggests that the P -E loop may be due to the existence of magnetic ions with mixed valances like Fe 2+ and Fe 3+ ions, vacancies of oxygen, or both of these in different reported ferroelectric materials [6,21,23,24].…”

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Photovoltaic effect of “ferroelectric” bananas

Ismail

You

et al. 2019

EPL

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Due to the existence of ferroelectric polarization, many ferroelectric materials can have excellent photovoltaic performance, which has been widely reported. However, many other materials have also been erroneously labelled as ferroelectrics based solely on the weight of a "ferroelectric" cigar-shaped loop curve. In a past report by J. F. Scott (J. Phys.: Condens. Matter, 20 (2008) 021001), this sort of minimal analysis has been widely debunked by showing that a clearly non-ferroelectric material such as ordinary bananas can also yield such a ferroelectric loop curve. In this work, we hope to extend his work by similarly showing that ordinary bananas can also exhibit a pseudo-photovoltaic response. Our hope is that future groups researching such materials may find our work helpful in distinguishing true photovoltaic and such pseudophotovoltaic phenomena in ferroelectric and non-ferroelectric materials with high leakage.

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confidence: 99%