Electro-absorption from GeSi heterostructures is receiving growing attention as a high performance optical modulator for short distance optical interconnects. Ge incorporation with Si allows strong modulation mechanism using the Franz-Keldysh effect and the quantum-confined Stark effect from bulk and quantum well structures at telecommunication wavelengths. In this review, we discuss the curren...

X-ray standing waves have been employed to study the microscopic mechanism of surfactant mediated epitaxy of Ge on Si~111!. After deposition of 0.5 BL Ge on the Ga:Si~111!-6.336.3 surface we find Ga floating on the surface in a Ga-Ge bilayer with Ga in a substitutional adsorption site. Deposition of 0.5 BL Ge on the Ga:Si~111!-A33A3 surface leads to a change of the Ga adsorption site from T4 to...

Center for Applied Near-Field Optics Research, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 4, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan Department of Physics, Yeshiva University, 245 Lexington Avenue, New York, NY 10016, USA Department of Physics, Box 351560, University of Washington, Seattle, WA 98195, USA SPring-8, Japan Synchrotron Radiation Resear...

SEGREGATION AND FRACTIONATION OF Ge ISOTOPES: COMPARISON OF EXPERIMENTAL DATA AND METEORITES. B. Luais, M.J. Toplis, L. Tissandier, and M. Roskosz. C.R.P.G., CNRS, Nancy-Université, 15, rue Notre-Dame des Pauvres, B.P.20, 54501 Vandoeuvre-les-Nancy, luais@crpg.cnrs-nancy.fr, D.T.P. , 14 avenue Edouard Belin, Toulouse, 31400, France, LSPES, Université de Lille1, Bâtiment C6, Villeneuve d'Ascq, 5...

Electrical control of magnetotransport properties is crucial for device applications in the field of spintronics. In this work, as an extension of our previous observation of rectification magnetoresistance, an innovative technique for electrical control of rectification magnetoresistance has been developed by applying direct current and alternating current simultaneously to the Ge-based Schott...

Statistical heterogeneity and small-study effects are 2 major issues affecting the validity of meta-analysis. In this article, we introduce the concept of a limit meta-analysis, which leads to shrunken, empirical Bayes estimates of study effects after allowing for small-study effects. This in turn leads to 3 model-based adjusted pooled treatment-effect estimators and associated confidence inter...

Abstract. Let K be a field of characteristic 0 and let (K) denote the n-fold cartesian product of K∗, endowed with coordinatewise multiplication. Let Γ be a subgroup of (K) of finite rank. We consider equations (*) a1x1+ · · ·+anxn = 1 in x = (x1, . . . , xn) ∈ Γ, where a = (a1, . . . , an) ∈ (K). Two tuples a,b ∈ (K) are called Γ-equivalent if there is a u ∈ Γ such that b = u · a. Győry and th...

EXAMINATION OF NONSTERILE Preparation of Test Strains PRODUCTS: MICROBIAL Use standardized stable suspensions of test strains or prepare as stated below. Seed-lot culture maintenance techENUMERATION TESTS niques (seed-lot systems) are used so that the viable microorganisms used for inoculation are not more than five passages removed from the original master seed-lot. Grow each of the bacterial ...