phmathВестник Государственного университета просвещения. Серия: Физика-МатематикаBulletin of Federal State University of Education. Series: Physics and Mathematics2949-50832949-5067Federal State University of Educationphmath-381Research ArticleРАЗДЕЛ II. ФИЗИКАSECTION II. PHYSICSЭЛЕКТРОННЫЙ ПАРАМАГНИТНЫЙ РЕЗОНАНС В ПОЛУПРОВОДНИКОВЫХ ОКСИДНЫХ СТЕКЛАХ СИСТЕМЫ V2O5-BAO-MN2O3ELECTRON PARAMAGNETIC RESONANCE IN SEMICONDUCTING OXIDE GLASSES OF SYSTEM V2O5-BAO-MN2O3ЖачкинВладимир АрефьевичZhachkinV. .V_Zhachkin@mail.ruБогомоловаЛидия ДмитриевнаBogomolovaL. .klydel995@mail.ruТарасоваВалентина ВасильевнаTarasovaV. .klydel995@mail.ruМосковский государственный областной университет (МГОУ)РоссияMoscow State Regional UniversityRussian FederationМосковский государственный университет имени М.В.ЛомоносоваРоссияSkobel’tsyn Research Institute of Nuclear Physics, Moscow State UniversityRussian FederationМосковский государственный университет им. М.В.ЛомоносоваРоссияPhysical Department of Moscow State University (MSU)Russian Federation2014200120230493105Copyright © Жачкин В.А., Богомолова Л.Д., Тарасова В.В., 20232023Жачкин В.А., Богомолова Л.Д., Тарасова В.В.Zhachkin V..., Bogomolova L..., Tarasova V...Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.physmathmgou.ru/jour/article/view/381

С помощью ЭПР исследовались взаимодействия между ионами V и Mn и их влияние на электрические свойства в бариево-ванадатных стеклах при введении в них Mn2O3. С ростом содержания Mn2O3 электропроводность стекол убывает вследствие образования пар V4+-Mn2+, а также крупных кластеров ионов V и Mn в высших формах окисления за счет изменения расстояния V-V и прямого вклада энергии обменного взаимодействия в энергию активации прыжкового процесса.

The interactions between V and Mn ions in semiconducting glasses of the system BaO-V2O5 are investigated by EPR. The influence of these interactions on the electrical properties of barium-vanadate glasses after an addition of Mn2O3 is studied. The electrical conductivity of barium-vanadate glasses decreases with increasing content of Mn2O3. It is proposed that this decrease is associated with the formation of pairs Mn2+-V4+, related exchange interaction as well as with the formation of large clusters of the ions V and Mn3+, Mn4+. This phenomenon can lead to a change of V-V distances. The pairs and large clusters make a direct contribution to the activation energy of hopping small polarons.

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The authors declare that there are no conflicts of interest present.