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Symmetry Factor and Order of Kinetics in Thermally Stimulated Luminescence 热激发光动力学的对称因子和顺序
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060135
R. Gartia, S. Singh, P. Mazumdar
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. Der 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.
热激发发光峰的对称因子μg(x)是一个重要的参数,因为一旦已知分数强度x的特定值,就有可能估计动力学的顺序6。目前文献中存在μg(0.5)对动力学b阶数依赖的图形图,这是许多实验工作者确定动力学阶数的依据。事实是,对于给定的b值,μg(x)不是唯一的,这一点被一些工作者忽视了。此外,还给出了数学上的细节,以此为基础,可以计算任意阶动力学下任意x值下的μg(x)。Der对称因子g(x)表示热刺激的最大值,即热刺激的最大最大值,即热刺激的最大最大值,即热刺激的最大最大值,即热刺激的最大最大值。图中文献中存在着Gegenwartig,图中存在着Gegenwartig,图中存在着gengenwartig,图中存在着gengenwartig,图中存在着gengenwartig,图中存在着gengenwartig,图中存在着gengenwartig。2 . wind der Fakt augegeight, as fur einen gegebenen Wert von b, g(x) night eindeindeist, in Punkt, der von einigen Autoren ubersehen wind。在数学上,数学是最基本的,数学是最基本的,数学是最基本的。
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引用次数: 27
On the Irreversibility of the Processes during Photomagnetization of Ferrites 铁氧体光磁化过程的不可逆性
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060133
E. Katsnelson, A. Karoza
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. [Russian Text Ignored].
本文介绍了含锰铁氧体在多次光磁化过程中的光磁效应、磁电相互作用和剩余光磁化的实验结果。在直流磁场作用下,用线极化激光束照射铁氧体,在室温下进行磁流变过程,其不可逆性是固有的。讨论了铁氧体光磁化和PGME过程中共振相互作用的可能机制。[忽略俄语文本]。
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引用次数: 7
Determination of Temperature-Dependent Carrier Losses in 1.3 μm InGaAsP/InP Double-Heterostructures 1.3 μm InGaAsP/InP双异质结构中载流子损耗的测定
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060160
B. Rheinländer, R. Heilmann, G. Oelgart
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引用次数: 3
Thermoluminescence in Synthetic Langbeinite 合成朗贝石的热释光研究
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060159
B. T. Deshmukh, S. V. Bodade, S. Moharil
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引用次数: 2
On the Determination of the Curie Temperature of Anisotropic Ferromagnets 各向异性铁磁体居里温度的测定
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060153
F. Yassin, V. Christoph, L. Jahn
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引用次数: 1
Positron Study of Vacancy Defects in Proton and Neutron Irradiated GaP, InP, and Si 质子和中子辐照GaP、InP和Si中空位缺陷的正电子研究
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060111
G. Dlubek, C. Ascheron, R. Krause, H. Erhard, D. Klimm
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. An 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.
在GaP、InP和Si单晶中,通过正电子湮灭技术(测量正电子寿命和湮灭光子的多普勒增宽线形)和内摩擦测量,研究了由快中子和质子辐照产生的缺陷的退火和影响浓度。在质子轰击GaP中,观察到两个阶段的退火过程(阶段I接近200°C,阶段II接近600°C),并分别归因于点状缺陷和扩展缺陷的退火。在中子辐照GaP中,所有正电子敏感辐射缺陷在700℃退火后消失。结果表明:(1)所有材料的正电子寿命和s参数随质子和中子通量的增加而增加;(2)元素半导体比化合物半导体表现出更强的增加。一种GaP-, InP-和si - einkristallden,如Ausheilverhalten和die doisabhange,如schunschschen中子和质子,如schunschen质子,如schunschen质子,如schunschen质子,如schunschen质子,如schunschen质子,如schunschen质子,如schunschen质子,如schunschen质子,如schunschen质子,如schunschen质子,如schunschen质子,如schunschen质子。a protonbestrahltem GaP ist in zweistufiger Ausheilprozes zu beobachten (Stufe I bei 200°C和Stufe II bei 600°C)。Die unterere Stufe wirnd der Ausheilung punktartiger defkte和Die obere Stufe mit der ausgedehnter defkte in verindung gebracht。在neutronenbestrahltem GaP verschwinden alle正电子enempfindlichen defkte nach Ausheilung bei 700°c中,(i)为正电子enenlebendauder, s参数为正电子enenlebendauder, (ii)为正电子enenenleauder, (i)为正电子enenenleauder, (i)为正电子enenenleauder, (i)为正电子enenenleauder。
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引用次数: 18
Strong Antiparallel Correlation in Liquid Crystalline Esters with Lateral Groups 具有侧基的液晶酯的强反平行相关性
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060155
H. Kresse, W. Weissflog
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引用次数: 12
Influence of the Melt Temperature on the Formation of Soft Magnetic Properties of an Amorphous Fe40Ni40P14B6 Alloy 熔体温度对非晶Fe40Ni40P14B6合金软磁性能形成的影响
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060149
S. Roth, G. Stephani
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引用次数: 1
Deep Level Profiling Using an Admittance Spectroscopy Method 利用导纳光谱法进行深能级谱分析
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060119
I. Marchishin, V. N. Ovsyuk, S. B. Sevastianov
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. [Russian Text Ignored].
提出了用导纳光谱(AS)研究杂质分布不均匀的表面势垒结构中的深层能级的理论。描述了一种处理实验数据以确定能级的能量位置、俘获截面以及浓度分布的方法。讨论了各种因素对原子吸收光谱分辨率的影响。[忽略俄语文本]。
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引用次数: 2
Micromagnetics of Cylindrical Particles 圆柱形粒子的微磁学
Pub Date : 1988-03-16 DOI: 10.1002/PSSA.2211060129
J. Ehlert, F. Hübner, W. Sperber
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. Eine 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.
给出并讨论了一些微磁问题的数值求解方法。本文研究了几何和磁旋转对称粒子的磁性行为,特别是有限圆柱体的磁性行为。数值方法以自由能最小化为基础。通过离散化,将最小值问题转化为方便的数值形式。有限圆柱体的磁行为与已知的无限圆柱体的结果不同,特别是成核场在本质上被简化了。本文介绍了这种方法及其可行性。微磁感应电磁脉冲的数值模拟方法。他的风有磁性的维哈尔滕几何和磁性的旋转,对称的维哈尔滕不动,不对称的维哈尔滕不动圆柱。能源效率的最小化。最小值问题(the Minimierungsproblem)是一种基于数值形式的最小值问题(the minimierunproblem)。Die Resultate uber das Verhalten des endlichen Zylinders unterscheiden van den bekanten Resultaten des unendlichen Zylinders, insbesonere ist das keimbildunsfeld wesentlich reduziert。《科学》和《科学》是在《科学》和《科学》的基础上形成的。
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引用次数: 8
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March 16
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