March 16Pub Date : 1988-03-16DOI: 10.1002/PSSA.2211060135
R. Gartia, S. Singh, P. Mazumdar
{"title":"Symmetry Factor and Order of Kinetics in Thermally Stimulated Luminescence","authors":"R. Gartia, S. Singh, P. Mazumdar","doi":"10.1002/PSSA.2211060135","DOIUrl":"https://doi.org/10.1002/PSSA.2211060135","url":null,"abstract":"The symmetry factor μg(x) of a thermally stimulated luminescence peak is an important parameter in the sense that once it is known for a particular value of fractional intensity x, it is possible to estimate the order of kinetics 6. At present in the literature a graphical picture of dependence of μg (0.5) on the order of kinetics b exists which is the basis for many experimentalists to determine the order of kinetics. The fact is pointed out that for a given value of b, μg(x) is not unique, a point overlooked by some workers. In addition the mathematical details are given based on which it is possible to calculate μg(x) for any value of × for any order of kinetics. \u0000 \u0000 \u0000 \u0000Der Symmetriefaktor μg(x) eines thermisch stimulierten Lumineszenzmaximums ist ein wesentlicher Parameter in dem Sinne, das, wenn er fur einen bestimmten Wert der Anteilenergie × bekannt is, es moglich ist, die Ordnung b der Kinetik zu bestimmen. Gegenwartig existiert in der Literatur ein graphisches Bild der Abhangigkeit μg (0,5) von der Ordnung b der Kinetik, die die Grundlage fur viele Experimentatoren zur Bestimmung der Kinetikordnung bildet. Es wird der Fakt aufgezeigt, das fur einen gegebenen Wert von b, μg(x) nicht eindeutig ist, ein Punkt, der von einigen Autoren ubersehen wird. Zusatzlich werden mathematische Details angegeben, auf deren Grundlage es moglich ist, μg(x) fur einen beliebigen Wert von × fur jede Kinetikordnung zu berechnen.","PeriodicalId":18217,"journal":{"name":"March 16","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1988-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90611939","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}
March 16Pub Date : 1988-03-16DOI: 10.1002/PSSA.2211060133
E. Katsnelson, A. Karoza
{"title":"On the Irreversibility of the Processes during Photomagnetization of Ferrites","authors":"E. Katsnelson, A. Karoza","doi":"10.1002/PSSA.2211060133","DOIUrl":"https://doi.org/10.1002/PSSA.2211060133","url":null,"abstract":"Experimental results of photogalvanomagnetic effect (PGME), magnetoelectric interaction, and remanent photomagnetization in Mn containing ferrites during multiple photomagnetization (PM) are presented. It is established that the irreversibility is inherent in the phenomena related to PM, if PM is carried out at room temperature by illuminating the ferrites with linearly polarized laser beam under dc magnetic field. Possible mechanisms of resonance interaction during PGME and photomagnetization of ferrites are considered. \u0000 \u0000 \u0000 \u0000[Russian Text Ignored].","PeriodicalId":18217,"journal":{"name":"March 16","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1988-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81791867","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}
March 16Pub Date : 1988-03-16DOI: 10.1002/PSSA.2211060160
B. Rheinländer, R. Heilmann, G. Oelgart
{"title":"Determination of Temperature-Dependent Carrier Losses in 1.3 μm InGaAsP/InP Double-Heterostructures","authors":"B. Rheinländer, R. Heilmann, G. Oelgart","doi":"10.1002/PSSA.2211060160","DOIUrl":"https://doi.org/10.1002/PSSA.2211060160","url":null,"abstract":"","PeriodicalId":18217,"journal":{"name":"March 16","volume":"2 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1988-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78415103","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}
March 16Pub Date : 1988-03-16DOI: 10.1002/PSSA.2211060159
B. T. Deshmukh, S. V. Bodade, S. Moharil
{"title":"Thermoluminescence in Synthetic Langbeinite","authors":"B. T. Deshmukh, S. V. Bodade, S. Moharil","doi":"10.1002/PSSA.2211060159","DOIUrl":"https://doi.org/10.1002/PSSA.2211060159","url":null,"abstract":"","PeriodicalId":18217,"journal":{"name":"March 16","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1988-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81907218","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}
March 16Pub Date : 1988-03-16DOI: 10.1002/PSSA.2211060153
F. Yassin, V. Christoph, L. Jahn
{"title":"On the Determination of the Curie Temperature of Anisotropic Ferromagnets","authors":"F. Yassin, V. Christoph, L. Jahn","doi":"10.1002/PSSA.2211060153","DOIUrl":"https://doi.org/10.1002/PSSA.2211060153","url":null,"abstract":"","PeriodicalId":18217,"journal":{"name":"March 16","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1988-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78094755","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}
March 16Pub Date : 1988-03-16DOI: 10.1002/PSSA.2211060111
G. Dlubek, C. Ascheron, R. Krause, H. Erhard, D. Klimm
{"title":"Positron Study of Vacancy Defects in Proton and Neutron Irradiated GaP, InP, and Si","authors":"G. Dlubek, C. Ascheron, R. Krause, H. Erhard, D. Klimm","doi":"10.1002/PSSA.2211060111","DOIUrl":"https://doi.org/10.1002/PSSA.2211060111","url":null,"abstract":"In GaP, InP, and Si single crystals the annealing and fluence dependent concentration of defects produced by irradiation with fast neutrons and protons are studied by means of the positron annihilation technique (measurements of the positron lifetime and of the Doppler broadening lineshape of annihilation photons) and of internal friction measurements. In proton bombarded GaP a two stage annealing process is observed (stage I near 200° C and stage II near 600° C) and attributed to the annealing of point-like and extended defects, respectively. In neutron irradiated GaP all positron sensitive radiation defects disappear after annealing at 700° C. It is shown (i) that in all materials the positron lifetime and S-parameter increase with rising proton and neutron fluence and (ii) that elemental semiconductors exhibit stronger increases than compound semiconductors. \u0000 \u0000 \u0000 \u0000An GaP-, InP- und Si-Einkristallen werden das Ausheilverhalten und die dosisabhangige Konzentration der durch Beschus mit schnellen Neutronen und Protonen erzeugten Defekte mittels der Methode der Positronenannihilation (Messungen der Positronenlebensdauer und der Dopplerverbreiterung der Spektrallinie der Annihilationsquanten) und der Methode der inneren Reibung untersucht. An protonenbestrahltem GaP ist ein zweistufiger Ausheilprozes zu beobachten (Stufe I bei 200° C und Stufe II bei 600° C). Die untere Stufe wird mit der Ausheilung punktartiger Defekte und die obere Stufe mit der Ausheilung ausgedehnter Defekte in Verbindung gebracht. In neutronenbestrahltem GaP verschwinden alle positronenempfindlichen Defekte nach Ausheilung bei 700° C. Es wird gezeigt, (i) das die Positronenlebensdauer und der S-Parameter bei allen untersuchten Materialien mit wachsendem Protonen- und Neutronenflus ansteigen und (ii) das bei Elementhalbleitern starkere Veranderungen auftreten als bei Verbindungshalbleitern.","PeriodicalId":18217,"journal":{"name":"March 16","volume":"87 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1988-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81070970","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}
March 16Pub Date : 1988-03-16DOI: 10.1002/PSSA.2211060149
S. Roth, G. Stephani
{"title":"Influence of the Melt Temperature on the Formation of Soft Magnetic Properties of an Amorphous Fe40Ni40P14B6 Alloy","authors":"S. Roth, G. Stephani","doi":"10.1002/PSSA.2211060149","DOIUrl":"https://doi.org/10.1002/PSSA.2211060149","url":null,"abstract":"","PeriodicalId":18217,"journal":{"name":"March 16","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1988-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72687552","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}
March 16Pub Date : 1988-03-16DOI: 10.1002/PSSA.2211060119
I. Marchishin, V. N. Ovsyuk, S. B. Sevastianov
{"title":"Deep Level Profiling Using an Admittance Spectroscopy Method","authors":"I. Marchishin, V. N. Ovsyuk, S. B. Sevastianov","doi":"10.1002/PSSA.2211060119","DOIUrl":"https://doi.org/10.1002/PSSA.2211060119","url":null,"abstract":"A theory for the admittance spectroscopy (AS) to study deep levels in surface-barrier structures with nonuniform distribution of impurities is developed. A procedure of treating experimental data to determine energy positions of levels, their capture cross-sections, as well as the Concentration profiles is described. The effect of various factors on AS resolution is discussed. \u0000 \u0000 \u0000 \u0000[Russian Text Ignored].","PeriodicalId":18217,"journal":{"name":"March 16","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1988-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82383666","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}
March 16Pub Date : 1988-03-16DOI: 10.1002/PSSA.2211060129
J. Ehlert, F. Hübner, W. Sperber
{"title":"Micromagnetics of Cylindrical Particles","authors":"J. Ehlert, F. Hübner, W. Sperber","doi":"10.1002/PSSA.2211060129","DOIUrl":"https://doi.org/10.1002/PSSA.2211060129","url":null,"abstract":"A numerical method is given and discussed for some micromagnetic problems. The magnetic behaviour of geometric and magnetic rotationally symmetric particles is investigated here, especially the behaviour of finite cylinders. The numerical method bases on the minimization of the free energy. The minimum problem is transformed into a numerical convenient form by a discretization. The results about the magnetic behaviour of the finite cylinder differ from the known results of the infinite cylinder, especially the nucleation field is essentially reduced. The method and its possibilities are presented in this paper. \u0000 \u0000 \u0000 \u0000Eine numerische Methode fur einige mikromagnetische Aufgabenstellungen wird vorgestellt und diskutiert. Es wird das magnetische Verhalten geometrisch und magnetisch rotationssymmetrischer Partikel untersucht, insbesondere das Verhalten endlicher Zylinder. Das numerische Verfahren basiert auf der Minimierung der freien Energie. Das Minimierungsproblem wird durch Diskretisierung auf eine geeignete numerische Form gebracht. Die Resultate uber das Verhalten des endlichen Zylinders unterscheiden sich von den bekannten Resultaten des unendlichen Zylinders, insbesondere ist das Keimbildungsfeld wesentlich reduziert. Das Verfahren und seine Moglichkeiten werden in der Arbeit vorgestellt.","PeriodicalId":18217,"journal":{"name":"March 16","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1988-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80439495","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}