Victor Kazmirenko, Yuriy Poplavko, Yuriy Yakymenko
{"title":"Charge Transfer in Polar Crystals","authors":"Victor Kazmirenko, Yuriy Poplavko, Yuriy Yakymenko","doi":"10.3103/s0735272722120032","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In some noncentrosymmetric crystals, their internal polarity can significantly influence the electric charge transfer. Sometimes, mixed ion-covalent bonds that are intrinsic to polar crystals are extremely delicately balanced, therefore, external stimuli (temperature or electric field) lead to a large change of the specific electrical resistance. In this case, even a small violation in the structure of materials stipulates a significant influence on electrical resistance, namely, a strong temperature dependence of the specific resistance of critistors and posistors and also field dependence of the specific resistance in varistors and controlled switching elements. A high sensitivity of specific resistance to peculiarities of the external environment that is stipulated by the imbalance of the internal polarity of active material is used in sensors. The analysis of the influence on electric charge transfer in polar structures can be crucial for the improvement of appropriate materials.</p>","PeriodicalId":52470,"journal":{"name":"Radioelectronics and Communications Systems","volume":"73 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radioelectronics and Communications Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3103/s0735272722120032","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0
Abstract
In some noncentrosymmetric crystals, their internal polarity can significantly influence the electric charge transfer. Sometimes, mixed ion-covalent bonds that are intrinsic to polar crystals are extremely delicately balanced, therefore, external stimuli (temperature or electric field) lead to a large change of the specific electrical resistance. In this case, even a small violation in the structure of materials stipulates a significant influence on electrical resistance, namely, a strong temperature dependence of the specific resistance of critistors and posistors and also field dependence of the specific resistance in varistors and controlled switching elements. A high sensitivity of specific resistance to peculiarities of the external environment that is stipulated by the imbalance of the internal polarity of active material is used in sensors. The analysis of the influence on electric charge transfer in polar structures can be crucial for the improvement of appropriate materials.
期刊介绍：
Radioelectronics and Communications Systems covers urgent theoretical problems of radio-engineering; results of research efforts, leading experience, which determines directions and development of scientific research in radio engineering and radio electronics; publishes materials of scientific conferences and meetings; information on scientific work in higher educational institutions; newsreel and bibliographic materials. Journal publishes articles in the following sections:Antenna-feeding and microwave devices;Vacuum and gas-discharge devices;Solid-state electronics and integral circuit engineering;Optical radar, communication and information processing systems;Use of computers for research and design of radio-electronic devices and systems;Quantum electronic devices;Design of radio-electronic devices;Radar and radio navigation;Radio engineering devices and systems;Radio engineering theory;Medical radioelectronics.
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