Journal De Physique Lettres最新文献_第2页

Random walks on a closed loop and spin glass relaxation 闭环上的随机漫步和自旋玻璃弛豫

Journal De Physique Lettres Pub Date : 1985-12-01 DOI: 10.1051/JPHYSLET:0198500460240115900

I. Campbell

引用次数: 35

Field theory approach to the Eden model and diffusion-limited aggregation 伊甸园模型的场论方法与扩散限制聚集

Journal De Physique Lettres Pub Date : 1985-12-01 DOI: 10.1051/JPHYSLET:0198500460240115100

L. Peliti, Z. Yi-Cheng

引用次数: 2

Electrolyte effects on a nearly second order nematic-isotropic phase transition in a micellar liquid crystal 电解质对胶束液晶中近二阶向列-各向同性相变的影响

Journal De Physique Lettres Pub Date : 1985-12-01 DOI: 10.1051/JPHYSLET:0198500460240119100

C. Rosenblatt, N. Zolty

引用次数: 15

Pressure dependence of field induced SDW states of (TMTSF)2ClO4 from the magnetoresistance at 1.5 K (TMTSF)2ClO4在1.5 K磁阻下场致SDW态的压力依赖性

Journal De Physique Lettres Pub Date : 1985-12-01 DOI: 10.1051/JPHYSLET:0198500460230113300

G. Creuzet, J. Cooper, F. Creuzet, D. Jérome, A. Moradpour

引用次数: 5

Note on «new electromechanical effect in chiral smectic C liquid crystals» 关于“手性微晶C液晶中的新机电效应”的说明

Journal De Physique Lettres Pub Date : 1985-12-01 DOI: 10.1051/JPHYSLET:0198500460240117300

H. Brand, H. Pleiner

引用次数: 5

Phase incommensurable dans le composé mixte (NH4) 2(BeF4)0,82(SO4)0,18 混合化合物(NH4) 2(BeF4) 0.82 (SO4) 0.18中的不可测量相

Journal De Physique Lettres Pub Date : 1985-12-01 DOI: 10.1051/JPHYSLET:0198500460230112300

R. Almairac, M. Siali, S. Vilminot, P. Grégoire, G. Delplanque, G. Barré

引用次数: 4

Weak localization of waves 波的弱局部化

Journal De Physique Lettres Pub Date : 1985-11-01 DOI: 10.1051/JPHYSLET:0198500460220104500

E. Akkermans, R. Maynard

{"title":"Weak localization of waves","authors":"E. Akkermans, R. Maynard","doi":"10.1051/JPHYSLET:0198500460220104500","DOIUrl":"https://doi.org/10.1051/JPHYSLET:0198500460220104500","url":null,"abstract":"The weak localization of waves is formulated in terms of coherent multiple scattering theory. This leads, in the backscattering direction, to an enhancement of the differential cross-section. It manifests itself macroscopically by the doubling of the backscattering intensity in a narrow cone of width φ c =λ/l•θ(Ω)/τ, where θ(Ω) is the residence time around the incident direction. The corrections to transport coefficients are then derived both in two and three dimensions in terms of φ c . An e-expansion around the lower critical dimension d c =2 is then performed and leads to a wave localization threshold for d>2 around which the critical behaviour is studied. Different kinds of experimental situations leading to the observation of this backscattering cone and critical exponents are then discussed Obtention de la localisation faible des ondes a partir d'une theorie de la diffusion multiple coherente, ce qui conduit a une augmentation de la section efficace differentielle dans la direction de retrodiffusion et, macroscopiquement, a une valeur double de l'intensite retrodiffusee dans un cone tres etroit autour de la direction d'incidence (ouverture angulaire φ c ). Corrections aux coefficients de transport a 2 et 3 dimensions a partir de φ c","PeriodicalId":14822,"journal":{"name":"Journal De Physique Lettres","volume":"74 1","pages":"1045-1053"},"PeriodicalIF":0.0,"publicationDate":"1985-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88480783","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: 51

Universalité des propriétés statiques des polymères en solution semi-diluée 聚合物在半稀释溶液中静态性能的通用性

Journal De Physique Lettres Pub Date : 1985-11-01 DOI: 10.1051/JPHYSLET:0198500460210103100

A. Lapp, C. Picot, C. Strazielle

引用次数: 9

Persistence length measurements in middle phase microemulsions 中相微乳的持续长度测量

Journal De Physique Lettres Pub Date : 1985-11-01 DOI: 10.1051/JPHYSLET:0198500460220105500

D. Guest, L. Auvray, D. Langevin

引用次数: 24

Mechanical percolation : a small beam lattice study 机械渗透:小梁晶格的研究

Journal De Physique Lettres Pub Date : 1985-11-01 DOI: 10.1051/JPHYSLET:019850046021099900

S. Roux, E. Guyon

{"title":"Mechanical percolation : a small beam lattice study","authors":"S. Roux, E. Guyon","doi":"10.1051/JPHYSLET:019850046021099900","DOIUrl":"https://doi.org/10.1051/JPHYSLET:019850046021099900","url":null,"abstract":"We numerically study the degradation of the mechanical properties of a two dimensional square lattice of beams with rigid bond angles as a function of the elements removed at random (bond percolation problem). In order to limit the fluctuations due to the small sample sizes, the elastic modulus is plotted versus the electrical conductance on the same lattices. The results for weakly and strongly degraded lattices are consistent with EMA and mechanical percolation results. By varying the aspect ratio of the beam and, thus, the ratio of compressive to bending effects, we modify the ratio of overall bending to compressive energies which becomes critical near threshold Nous etudions numeriquement la degradation des proprietes mecaniques d'un reseau carre de barres (obtenu par perforations periodiques d'une plaque) avec des angles de liaison constants entre barres en fonction du nombre d'elements supprimes au hasard (probleme de percolation de liens). En vue de limiter les fluctuations dues a la petite taille des reseaux, on a evalue simultanement le module elastique et la conductance electrique en fonction du taux de degradation. Les resultats pour des faibles et pour des forts taux sont consistants respectivement avec les modeles de champ moyen et de percolation mecanique. En variant l'allongement des barres et, par suite, le rapport entre les effets de compression et de flexion, on modifie le rapport des energies associees a ces deux mecanismes, rapport qui devient critique au seuil de percolation","PeriodicalId":14822,"journal":{"name":"Journal De Physique Lettres","volume":"5 1","pages":"999-1004"},"PeriodicalIF":0.0,"publicationDate":"1985-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73887444","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: 64