Day 1 Wed, February 23, 2022最新文献_第10页

On the Universality of the Resistive Transition Due to Vortex Depairing in 2D Superconductors in the High k Limit 高k极限下二维超导体涡旋消失电阻跃迁的普适性

Day 1 Wed, February 23, 2022 Pub Date : 1985-02-01 DOI: 10.1002/PSSB.2221270250

G. Giaquinta, C. Mauro, R. Fazio

引用次数: 3

The Theory of Auger Spectra from Alloys. The Effect of Electron Correlations in Partially Filled Narrow Bands 合金的俄歇谱理论。部分填充窄带中电子相关的影响

Day 1 Wed, February 23, 2022 Pub Date : 1985-02-01 DOI: 10.1002/PSSB.2221270222

V. Drchal, J. Kudrnovský

{"title":"The Theory of Auger Spectra from Alloys. The Effect of Electron Correlations in Partially Filled Narrow Bands","authors":"V. Drchal, J. Kudrnovský","doi":"10.1002/PSSB.2221270222","DOIUrl":"https://doi.org/10.1002/PSSB.2221270222","url":null,"abstract":"The effect of electron correlations on the Auger spectra from the substitutionally disordered narrow-band metal alloys with partially filled bands is studied within the degenerate Hubbard model. Perturbation theory is used limited to the second order in U/w (U Coulomb integral, w bandwidth) for the calculation of the one-particle Green function, and the ladder approximation for the two-particle Green function. The effect of disorder is included within the single-site approximation. The theory is illustrated on a simple model of the copper-nickel alloy. \u0000 \u0000 \u0000 \u0000Der Einflus der Elektronenkorrelationen auf die Augerspektren der substitutionell-ungeordneten Legierungen von Metallen mit teilweise gefullten schmalen Bandern wird in Rahmen eines entarteten Hubbard-Modells untersucht. Storungstheorie zweiter Ordnung in U/w (U Coulomb Integral, w Bandbreite) wird fur die Berechnung der Einteilchen-Greenfunktion benutzt sowie die Leiterapproximation fur die Zweiteilchen-Greenfunktion. Der Einflus der Fehlordnung wird in die Einzentrennaherung einbezogen. Die Theorie wird fur ein einfaches Modell der Kupfer–Nickel-Legierung dargestellt.","PeriodicalId":10913,"journal":{"name":"Day 1 Wed, February 23, 2022","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82215810","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}

引用次数: 5

Stimulated Raman Scattering in a Potassium Pentaborate Crystal 五硼酸钾晶体的受激拉曼散射

Day 1 Wed, February 23, 2022 Pub Date : 1985-02-01 DOI: 10.1002/PSSB.2221270238

K. B. Petrosyan, K. M. Pokhsraryan

引用次数: 5

A Continuum Model for the Impurity State of Ferromagnets 铁磁体杂质态的连续统模型

Day 1 Wed, February 23, 2022 Pub Date : 1985-02-01 DOI: 10.1002/PSSB.2221270211

Zhen-ya Li, Jui-Teng Lin

引用次数: 0

Some Properties of n-Inversion Layers at Grain Boundaries in InSb Bicrystals InSb双晶晶界n-反转层的一些性质

Day 1 Wed, February 23, 2022 Pub Date : 1985-02-01 DOI: 10.1002/PSSB.2221270251

T. Schurig, R. Herrmann

引用次数: 8

Electron Spin Resonance Study of Fe+ Centers in NaCl:Fe++ and Motion of the Associated Vacancies NaCl中Fe+中心的电子自旋共振研究:Fe++及其空位运动

Day 1 Wed, February 23, 2022 Pub Date : 1985-02-01 DOI: 10.1002/PSSB.2221270227

B. R. Yang, A. Bouwen, D. Schoemaker

{"title":"Electron Spin Resonance Study of Fe+ Centers in NaCl:Fe++ and Motion of the Associated Vacancies","authors":"B. R. Yang, A. Bouwen, D. Schoemaker","doi":"10.1002/PSSB.2221270227","DOIUrl":"https://doi.org/10.1002/PSSB.2221270227","url":null,"abstract":"X-irradiation at 77 K of a NaCl:Fe++ crystal produces orthorhombic and axial Fe+ ESR spectra of comparable intensities. The corresponding Fe+ (ortho) and Fe+ (tetra) centers are identified with, respectively, a substitutional Fe+ perturbed by a nearest and a next nearest cation vacancy. At 170 K the cation vacancy of Fe+ (ortho) jumps to the next nearest neighbour position enhancing the Fe+ (tetra) intensity. Above 215 K the vacancy moves away completely and the unperturbed Fe+ (cubic) is formed. It is concluded from this study that before X-irradiation Fe++ perturbed by either nearest or next nearest cation vacancies occur in roughly comparable amounts and that the activation energy for cation vacancy motion in NaCl is 0.72 eV. \u0000 \u0000 \u0000 \u0000Irradiation aux rayons X a 77 K d'un crystal NaCl:Fe++ produit des spectres de RPE Fe+ pos-sedant des symetries orthorhombiques et axials. Les centres Fe+ (ortho) et Fe+ (tetra) correspondants sont identifies avec un ion Fe+ substitutionel perturbe, respectivement par une lacune cation voisine ou prochaine voisine. A 170 K la lacune cation de Fe+ (ortho) saute vers la position prochaine voisine et augmente ainsi l'intensite de Fe+ (tetra). Vers 215 K la lacune se separe completement et le centre Fe+ (cubic) non perturbe se forme. On conclut qu'avant l'irradiation les deux types de centres Fe++ perturbes sont presents avec des concentrations comparables et que l'energie d'activation pour le mouvement d'une lacune cation dans le NaCl est de 0,72 eV.","PeriodicalId":10913,"journal":{"name":"Day 1 Wed, February 23, 2022","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77944782","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}

引用次数: 15

A Common Maximum of the Minority Spin-Band Resistivities of Some Nickel Alloys 某些镍合金的少数自旋带电阻率的共同最大值

Day 1 Wed, February 23, 2022 Pub Date : 1985-02-01 DOI: 10.1002/PSSB.2221270249

P. Muth

引用次数: 1

A Refinement of the Mollwo-Ivey Rule for F-Centres in Alkali Halides 碱化物中f中心Mollwo-Ivey规则的改进

Day 1 Wed, February 23, 2022 Pub Date : 1985-02-01 DOI: 10.1002/PSSB.2221270231

A. Maduemezia, F. Vega-Catalan

{"title":"A Refinement of the Mollwo-Ivey Rule for F-Centres in Alkali Halides","authors":"A. Maduemezia, F. Vega-Catalan","doi":"10.1002/PSSB.2221270231","DOIUrl":"https://doi.org/10.1002/PSSB.2221270231","url":null,"abstract":"It is found that the simple formula , where A = 328, B = 9.3118, and a = 1/x the nearest-neighbour distance in Bohr radii, is a very good fit for the detailed variation of the F-centre peak absorption energy, E (in Ryd), with a, for the 16 alkali halides with NaCl structure, excluding CsF. The first term arises from incoherent photon scattering leading to electronic level transitions. The second term is a diffraction term, arising from the coherent scattering of photons from relaxed ionic aggregates around F-centers separated on the average by distances of the order of optical wavelengths. \u0000 \u0000 \u0000 \u0000Es wird gefunden, das die einfache Formel , wo A = 328, B = 9,3118 und a = 1/x der Abstand nachster Nachbarn in Bohrschen Radien ist, sher gut die ausgepragte Anderung der F-Zentren-Absorptionsenergie, E (in Ryd), mit a fur 16 Alkalihalogenide mit NaCl-Struktur, mit Ausnahme von CsF, anpast. Der erste Term ruhrt von der inkoharenten Photonstreuung her, die zu elektronischen Ubergangen fuhrt. Der zweite Term ist ein Beugungsterm, der von der koharenten Streuung der Photonen von relaxiierten Ionenanordnungen um F-Zentren herruhrt, die im Mittel mit einer Entfernung von der Grosenordnung der optischen Wellenlangen voneinander entfernt sind.","PeriodicalId":10913,"journal":{"name":"Day 1 Wed, February 23, 2022","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1985-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82912878","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}

引用次数: 1

Investigation of the Dislocation Spin System in Silicon as Model of One-Dimensional Spin Chains 硅中位错自旋体系作为一维自旋链模型的研究

Day 1 Wed, February 23, 2022 Pub Date : 1981-12-31 DOI: 10.1515/9783112496428-008

V. A. Grazhulis, V. Kveder, Y. Osipyan

引用次数: 0

Evaluation of the Fourth-Order Elastic Constants of NaCl-Structure Alkali Halide Crystals nacl结构碱卤化物晶体四阶弹性常数的计算

Day 1 Wed, February 23, 2022 Pub Date : 1981-12-31 DOI: 10.1515/9783112496428-014

J. Shanker, J. Singh, V. P. Gupta

引用次数: 0