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- Institute of Physics, Jan Dlugosz University of Czestochowa, 42-200 Czestochowa, al. Armii Krajowej 13/15, Poland
We study the magnetoelectric effects in the normal phase of the copper oxides. We show, that in the underdoped copper oxides there arises a peculiar, alternative to the magnon fractalization, mechanism of spinon excitations. Next we prove, that within the CuO2 planes spinons are coupled to the local electric dipole moments which results in composed excitations called electrospinons. Further, we show that when external electric field is applied, along with the electric current there can also arise the ferroelectric current being the ferroelectric counterpart of the well-known spin current. Finally we show that magnetoelectric phenomena can contribute to the second harmonic generation..
Superconductivity, Spinons, Elctrospinons.
Submitted at: Jan. 10, 2019
Accepted at: Feb. 15, 2021
Z. BAK, Ferroelectric current, electrospinons and ferrons in the underdoped copper oxides, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 1-2, pp. 43-47 (2021)
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