DOI: https://doi.org/10.3103/S0735272720060023
Open Access Open Access  Restricted Access Subscription Access
Temperature dependence of resistivity for platinum wire thermistor, negistor utilizing transition-metals oxides, vanadium dioxide critistor, doped barium titanate posistor

Large parameters and giant effects in electronic materials

Yuriy M. Poplavko, Yuriy I. Yakymenko

Abstract


Interpretations of large electromagnetic parameters and giant effects in electronic materials are presented. Conductivity, permittivity and permeability of certain materials can be hundred times higher than normal values. Physical phenomena of magnetoresistivity, nonlinear resistivity, electrostriction, magnetostriction, magnetocaloric and thermistor effects in some materials appear to be giant. Often, but not always, these anomalies are due to the proximity of a substance to its phase transitions. Original explanations of the listed phenomena are given, particularly, the effect of polarization on a huge change of conductivity.

Keywords


conductivity; dielectric permittivity; magnetic permeability; magnetoresistivity; thermoresistivity; magnetostriction; magnetocaloric effect; varistor; phase transitions

Full Text:

PDF

References


W. Martienssen, H. Warlimont, Springer Handbook of Condensed Matter and Materials Data. Berlin: Springer Berlin Heidelberg, 2005, doi: https://doi.org/10.1007/3-540-30437-1.

Y. M. Poplavko, S. A. Voronov, Y. I. Yakymenko, Physical Material Science, Part 3: Metals and Magnetics. Kyiv: Kyiv Politechnic Institute, 2011.

Y. M. Poplavko, Y. I. Yakymenko, Piezoelectrics. Kyiv: Kyiv Politechnic Institute, 2013.

R. E. Newnham, Properties of Materials: Anisotropy, Symmetry, Structure. Oxford: Oxford University Press, 2004, uri: https://global.oup.com/academic/product/properties-of-materials-9780198520764.

F. Zhuo et al., “Field-induced phase transitions and enhanced double negative electrocaloric effects in (Pb,La)(Zr,Sn,Ti)O3 antiferroelectric single crystal,” Appl. Phys. Lett., vol. 112, no. 13, p. 133901, 2018, doi: https://doi.org/10.1063/1.5018790.







© Radioelectronics and Communications Systems, 2004–2020
When you copy an active link to the material is required
ISSN 1934-8061 (Online), ISSN 0735-2727 (Print)
tel./fax +38044 204-82-31, 204-90-41