Determination de la correction de vertex electron-phonon et analyse de sa variation en fonction de la temperature, du melange intercouche et de divers parametres des electrons et des phonons; mise en evidence de la possibilite de negliger la correction d'ordre 1 en l'absence d'ondes de flexion
{"title":"On the Electron-Phonon Interaction in Layered Crystals","authors":"K. K. Danilevich‐tovstyuk, B. Lukiyanets","doi":"10.1002/PSSB.2221320242","DOIUrl":"https://doi.org/10.1002/PSSB.2221320242","url":null,"abstract":"Determination de la correction de vertex electron-phonon et analyse de sa variation en fonction de la temperature, du melange intercouche et de divers parametres des electrons et des phonons; mise en evidence de la possibilite de negliger la correction d'ordre 1 en l'absence d'ondes de flexion","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86760448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Abraham, H. Nelkowski, H. Pradella, J. Sahm, K. Zink
Etude de deux monocristaux a 0,3 et 1,1% de manganese (% atomique); analyse detaillee des spectres RPE et calcul des parametres du champ cristallin des paires d'ions Mn dans ZnSe
{"title":"Manganese Pairs in ZnSe Detected by EPR Measurements","authors":"G. Abraham, H. Nelkowski, H. Pradella, J. Sahm, K. Zink","doi":"10.1002/PSSB.2221320254","DOIUrl":"https://doi.org/10.1002/PSSB.2221320254","url":null,"abstract":"Etude de deux monocristaux a 0,3 et 1,1% de manganese (% atomique); analyse detaillee des spectres RPE et calcul des parametres du champ cristallin des paires d'ions Mn dans ZnSe","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86834624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A theory is developed of the thermoelectric power associated with electronic phonon-assisted hopping motion between energetically inequivalent sites with different electron–lattice interaction parameters. The general results are applied to the high-temperature small polaron hopping case. Comparison is made with other theories. Es wird eine Theorie der mit elektronischer, phononenunterstutzter Hoppingbewegung zwischen energetisch nichtaquivalenten Platzen mit unterschiedlichen Elektron–Gitter-Wechselwirkungs- parametern verbundenen Thermospannung entwickelt. Die allgemeinen Ergebnisse werden auf den Hocbtemperatur-Hoppingfall kleiner Polaronen angewendet. Mit anderen Theorien wird ein Vergleich durchgefuhrt.
{"title":"Thermoelectric Power Due to Small Polaron Hopping Motion in Disordered Systems","authors":"G. Triberis","doi":"10.1002/PSSB.2221320239","DOIUrl":"https://doi.org/10.1002/PSSB.2221320239","url":null,"abstract":"A theory is developed of the thermoelectric power associated with electronic phonon-assisted hopping motion between energetically inequivalent sites with different electron–lattice interaction parameters. The general results are applied to the high-temperature small polaron hopping case. Comparison is made with other theories. \u0000 \u0000 \u0000 \u0000Es wird eine Theorie der mit elektronischer, phononenunterstutzter Hoppingbewegung zwischen energetisch nichtaquivalenten Platzen mit unterschiedlichen Elektron–Gitter-Wechselwirkungs- parametern verbundenen Thermospannung entwickelt. Die allgemeinen Ergebnisse werden auf den Hocbtemperatur-Hoppingfall kleiner Polaronen angewendet. Mit anderen Theorien wird ein Vergleich durchgefuhrt.","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85277054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mesure simultanee des spectres d'absorption et de reflexion entre 2,548 et 2,558 eV; determination du spectre d'amortissement par iteration et mise en evidence de son accord satisfaisant avec la vitesse de groupe des polaritons
{"title":"Transmission and Damping of Excitonic Polaritons in CdS","authors":"I. Broser, K. Pantke, M. Rosenzweig","doi":"10.1002/PSSB.2221320250","DOIUrl":"https://doi.org/10.1002/PSSB.2221320250","url":null,"abstract":"Mesure simultanee des spectres d'absorption et de reflexion entre 2,548 et 2,558 eV; determination du spectre d'amortissement par iteration et mise en evidence de son accord satisfaisant avec la vitesse de groupe des polaritons","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86004963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Analyse du spectre RPE a 300 K et calcul des parametres de l'hamiltonien de spin; mise en evidence de deux sites chimiquement non equivalents pour l'ion vanadyle
分析300k的RPE谱，计算自旋哈密顿量参数;钒基离子的两个化学上不相等的位点的证据
{"title":"ESR Study of Vanadyl Ion in Potassium Succinate","authors":"V. Seth, V. Jain, A. Yadav, R. Bansal","doi":"10.1002/PSSB.2221320255","DOIUrl":"https://doi.org/10.1002/PSSB.2221320255","url":null,"abstract":"Analyse du spectre RPE a 300 K et calcul des parametres de l'hamiltonien de spin; mise en evidence de deux sites chimiquement non equivalents pour l'ion vanadyle","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82845952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The displacement of the Fermi level, ΔEF, on alloying, when impurity atoms are in a random distribution, is investigated in terms of a cellular structure where spherical cells, each containing an impurity atom at its center, have various sizes. This model is a simple extension of Friedel's model in which all the cells have an equal size. An appropriate distribution function of cell sizes is estimated by the aid of a computer simulation. For a random distribution of impurity atoms, ΔEFp is found to depend more linearly on the impurity concentration than expected from Friedel's model. A comparison is made with experimental data reported in literature for copper alloys.
{"title":"Displacement of the Fermi Level Due to Impurities in a Random Distribution","authors":"K. Yoshida","doi":"10.1002/PSSB.2221320228","DOIUrl":"https://doi.org/10.1002/PSSB.2221320228","url":null,"abstract":"The displacement of the Fermi level, ΔEF, on alloying, when impurity atoms are in a random distribution, is investigated in terms of a cellular structure where spherical cells, each containing an impurity atom at its center, have various sizes. This model is a simple extension of Friedel's model in which all the cells have an equal size. An appropriate distribution function of cell sizes is estimated by the aid of a computer simulation. For a random distribution of impurity atoms, ΔEFp is found to depend more linearly on the impurity concentration than expected from Friedel's model. A comparison is made with experimental data reported in literature for copper alloys.","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79141533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The influence of mechanical deformation of the tetragonal crystal Cs3CoCl5, on the EPR spectrum of the Co2+ ion tetrahedral centres is studied. The contributions of two main mechanisms of forming of ground state zero-field splitting (modifications of volume and “shape” of the magnetic complex) are separated. The calculated angle of the distortion of tetrahedral nearest environment of the paramagnetic ion (γ – γ0 = −0.8°) is in good agreement with the X-ray analysis data. The correlation of sign of the tetrahedral magnetic centre distortion with the sign of the zero-field parameter D is considered. [Russian text ignore.]
{"title":"The Structure of the Magnetic Centre in Cs3CoCl5","authors":"S. Lukin, O. P. Teslya","doi":"10.1002/PSSB.2221320234","DOIUrl":"https://doi.org/10.1002/PSSB.2221320234","url":null,"abstract":"The influence of mechanical deformation of the tetragonal crystal Cs3CoCl5, on the EPR spectrum of the Co2+ ion tetrahedral centres is studied. The contributions of two main mechanisms of forming of ground state zero-field splitting (modifications of volume and “shape” of the magnetic complex) are separated. The calculated angle of the distortion of tetrahedral nearest environment of the paramagnetic ion (γ – γ0 = −0.8°) is in good agreement with the X-ray analysis data. The correlation of sign of the tetrahedral magnetic centre distortion with the sign of the zero-field parameter D is considered. \u0000 \u0000 \u0000 \u0000[Russian text ignore.]","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90477952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
(γ;e) conversion scattering under the GMR conditions is considered. To solve this problem the density matrix method is used. It is shown that the process is accompanied by the time oscillations of conversion electron (CE) flux. The oscillation frequencies are multiple to the frequency of rf magnetic field. CE polarization is analysed on the example 57Fe nuclei in iron. The possibility of application of these results for spin polarization study of the inner atomic shells is shown. [Russian text ignore.]
{"title":"GMR Effect on Conversion Electron Polarization","authors":"A. V. Mitin, E. Popov","doi":"10.1002/PSSB.2221320225","DOIUrl":"https://doi.org/10.1002/PSSB.2221320225","url":null,"abstract":"(γ;e) conversion scattering under the GMR conditions is considered. To solve this problem the density matrix method is used. It is shown that the process is accompanied by the time oscillations of conversion electron (CE) flux. The oscillation frequencies are multiple to the frequency of rf magnetic field. CE polarization is analysed on the example 57Fe nuclei in iron. The possibility of application of these results for spin polarization study of the inner atomic shells is shown. \u0000 \u0000 \u0000 \u0000[Russian text ignore.]","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89810248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A calculation of the local-environment effect on nitrogen bound excitons and excitonic molecules in III-V-mixed crystal alloys is represented. The stochastic alloy potential is treated by means of perturbation theory, and a random distribution of As and P atoms in the appropriate sublattice is assumed. Because of special considerations concerning the concentration dependence of the averaged alloy potential the method is free of adjustable parameters. The density of states and its statistical momenta are calculated including electrons and holes simultaneously. The method is applied to GaAs1−xPx:N. Good agreement with measured bandwidths for bound excitons is obtained. Der Einflus der lokalen Umgebung auf stickstoffgebundene Exzitonen und Exzitonenmolekule in III-V-Mischkristallen wird berechnet. Das stochastische Legierungspotential wird mittels Storungstheorie und unter der Annahme einer zufalligen Verteilung von As- und P-Atomen im entsprechenden Untergitter verarbeitet. Durch spezielle Betrachtungen zur Konzentrationsabhangigkeit des Legierungspotentials bleiben keine freien Parameter in der Berechnungsmethode. Sowohl die Zustandsdichte als auch deren statistische Momente werden berechnet, wobei die Elektronen und Locher gleichzeitig eingehen. Die Methode wird auf GaAs1−xPx:N angewendet. Gute Ubereinstimmung mit experimentellen Daten des gebundenen Exzitons wird gefunden.
本文计算了iii - v混合晶体合金中氮束缚激子和激子分子的局域环境效应。用微扰理论处理随机合金势，并假设As和P原子在适当的亚晶格中随机分布。由于对平均合金电位的浓度依赖性的特殊考虑，该方法没有可调参数。同时计算了包含电子和空穴的态密度及其统计动量。该方法适用于GaAs1−xPx:N。得到了与测量到的束缚激子带宽很好的一致性。iii - v - mischchstallne中gebundene Exzitonen和exzitonon分子的研究。参考文献:1 .《随机分析》，《潜在风力发电理论》，《风力发电理论》，《风力发电理论》，《风力发电理论》在berechnungs方法中，当参数为任意参数时，该方法可用于检测电势。因此，我们也可以用统计的方式来描述电子技术，我们可以用电子技术来描述电子技术。GaAs1−xPx:N的成型方法。Gute bere刺激是一种实验性的刺激。
{"title":"Influence of Local Environment on Bound Excitons and Bound Excitonic Molecules in III-V Alloys","authors":"H. Müller","doi":"10.1002/PSSB.2221320124","DOIUrl":"https://doi.org/10.1002/PSSB.2221320124","url":null,"abstract":"A calculation of the local-environment effect on nitrogen bound excitons and excitonic molecules in III-V-mixed crystal alloys is represented. The stochastic alloy potential is treated by means of perturbation theory, and a random distribution of As and P atoms in the appropriate sublattice is assumed. Because of special considerations concerning the concentration dependence of the averaged alloy potential the method is free of adjustable parameters. The density of states and its statistical momenta are calculated including electrons and holes simultaneously. The method is applied to GaAs1−xPx:N. Good agreement with measured bandwidths for bound excitons is obtained. \u0000 \u0000 \u0000 \u0000Der Einflus der lokalen Umgebung auf stickstoffgebundene Exzitonen und Exzitonenmolekule in III-V-Mischkristallen wird berechnet. Das stochastische Legierungspotential wird mittels Storungstheorie und unter der Annahme einer zufalligen Verteilung von As- und P-Atomen im entsprechenden Untergitter verarbeitet. Durch spezielle Betrachtungen zur Konzentrationsabhangigkeit des Legierungspotentials bleiben keine freien Parameter in der Berechnungsmethode. Sowohl die Zustandsdichte als auch deren statistische Momente werden berechnet, wobei die Elektronen und Locher gleichzeitig eingehen. Die Methode wird auf GaAs1−xPx:N angewendet. Gute Ubereinstimmung mit experimentellen Daten des gebundenen Exzitons wird gefunden.","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82991608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1984-12-31DOI: 10.1515/9783112495261-029
M. Jahan, D. W. Cooke
{"title":"Thermal Evolution oi Low-Temperature Manganese Centers in X-Irradiated CaF2:Mn","authors":"M. Jahan, D. W. Cooke","doi":"10.1515/9783112495261-029","DOIUrl":"https://doi.org/10.1515/9783112495261-029","url":null,"abstract":"","PeriodicalId":11099,"journal":{"name":"Day 1 Mon, December 06, 2021","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1984-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73602895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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