Crystal Structures and Superconductivity in TlSr<sub>2</sub>Ca<sub>1-x</sub>Y<sub>x</sub>Cu<sub>2</sub>O<sub>7</sub>
نویسندگان
چکیده
منابع مشابه
High-pressure crystal structures and superconductivity of Stannane (SnH4).
There is great interest in the exploration of hydrogen-rich compounds upon strong compression where they can become superconductors. Stannane (SnH(4)) has been proposed to be a potential high-temperature superconductor under pressure, but its high-pressure crystal structures, fundamental for the understanding of superconductivity, remain unsolved. Using an ab initio evolutionary algorithm for c...
متن کاملLattice Vibrations and Superconductivity in Layered Structures
In order to estimate the influence of both surface and interface effects on phonon frequencies and superconducting transition temperatures in layered structures, we have calculated the vibrational modes of structures composed of alternating films of heavy and light particles. An interface effectively lowers the vibrational frequencies of the heavy particles and raises those of the light particl...
متن کاملTemperature Tunability of Dielectric/ Liquid Crystal / Dielectric Photonic Crystal Structures
Recently, photonic crystals doped with liquid crystal (LC) material havegained much research interest. In this article new ternary one-dimensional photoniccrystal introduced and studied. The liquid crystal layer of 5CB and 5PCH is sandwichedby two dielectric layers. For the first time, we use four structures SiO2/UCF35/CaF2,SiO2/5CB/CaF2, NFK51/UCF35/NPSK53 and NFK51/5CB/NPSK53. The effect ofte...
متن کاملCrystal chemistry, superconductivity and magnetism in iron chalcogenides
1 Département de Physique de la Matière Condensée, Université de Genève, 24 Quai Ernest-Ansermet, CH-1211 Geneva, Switzerland 2 Laboratoire de Crystallographie, Université de Genève, 24 Quai Ernest-Ansermet, CH-1211 Geneva, Switzerland 3 European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz, BP 220, F-38043 Grenoble Cedex, France * Corresponding author: Tel. +41-22-3796076; fax +...
متن کاملInvestigation and Comparison of Light Propagation in Two Graded Photonic Crystal Structures
In this paper, we study two different Graded Index (GRIN) photonic crystal (PC) structures which are named as structure type I and type II. The PC structures are made of the square rod in an air background. To design a GRIN PC structure the lattice constant has been altered in the direction transverse to propagation. We investigated focusing effect and waveguiding behavior of electr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEJ Transactions on Fundamentals and Materials
سال: 1990
ISSN: 0385-4205,1347-5533
DOI: 10.1541/ieejfms1990.110.7_436