Related papers: Superconductivity at 49 K in copper doping magnesi…
This paper has been withdrawn by the authors, due to issues concerning the use of unpublished experimental data.
Over the past six years, superconductivity at high temperatures has been reported in a variety of hydrogen-rich compounds under high pressure. That high-temperature superconductivity should exist in these materials is expected according to…
The theoretical approach proposed recently for description of redistribution of electronic charge in multilayered selectively doped systems is modified for a system with finite number of layers. A special attention is payed to the case of a…
Single crystalline CaFe2As2 and (Ca1-xNax)Fe2As2 polycrystals (0 < x < 0.66) are synthesized and characterized using structural, magnetic, electronic transport, and heat capacity measurements. These measurements show that the…
This paper has been withdrawn.
This paper was withdrawn by the authors.
This paper has been withdrawn by the authors.
The paper has been withdrawn
This paper has been withdrawn.
The paper has been withdrawn by the authors for modification.
%auto-ignore This paper has been withdrawn by the authors due to dublicate submission. To download the paper please go to astro-ph/0611081
This paper has been withdrawn.
A new experimental study by Snider et al. [Nature 586, 373-377 (2020)] reported behavior in a high-pressure carbon-sulfur-hydrogen system that has been interpreted by the authors as superconductivity at room temperature. The sudden drop of…
An unusual temperature and concentration behavior of resistivity in $La_{0.7}Ca_{0.3}Mn_{1-x}Cu_xO_3$ has been observed at slight $Cu$ doping ($0\leq x \leq 0.05$). Namely, introduction of copper results in a splitting of the resistivity…
We study a mechanical resonator made of aluminum near the normal to super conductivity phase transition. A sharp drop in the rate of mechanical damping is observed below the critical temperature. The experimental results are compared with…
This paper has been withdrawn while the author verifies the literature.
This paper has been withdrawn by the authors because the analysis has been extended in Ref.(arXiv:0804.1252) to the sbottom-antisbottom case.
This paper was withdrawn by the author.
The quest for room-temperature superconductors has been teasing scientists and physicists, since its inception in 1911 itself. Several assertions have already been made about room temperature superconductivity but were never verified or…
This paper has been withdrawn by the authour.