Related Experiment Video
Updated: Aug 2, 2025

Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
Published on: July 8, 2021
Cr[Formula: see text]AlN and the search for the highest temperature superconductor in the M[Formula: see text]AX
E Karaca1,2, P J P Byrne1, P J Hasnip1
1Department of Physics, University of York, York, YO10 5DD UK.
Abstract:
We have developed a high-throughput computational method to predict the superconducting transition temperature in stable hexagonal M[Formula: see text]AX phases, and applied it to all the known possible choices for M (M: Sc, Ti, V, Cr, Mn, Fe, Y, Zr, Nb, Mo, Lu, Hf and Ta). We combine this with the best candidates for A (A: Al, Cu, Ge and Sn ) and X (X: C and N) from our previous work, and predict T[Formula: see text] for 60 M[Formula: see text]AX-phase materials, 53 of which have never been studied before. From all of these, we identify Cr[Formula: see text]AlN as the best candidate for the highest T[Formula: see text], and confirm its high T[Formula: see text] with more detailed density functional theory electron-phonon coupling calculations. Our detailed calculations predict [Formula: see text] = 14.8 K for Cr[Formula: see text]AlN, which is significantly higher than any [Formula: see text] value known or predicted for any material in the M[Formula: see text]AX family to date.
Related Concept Videos
Superconductor
Types Of Superconductors
Theory of Metallic Conduction
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
Eddy Currents
Other major applications of eddy currents appear in metal detectors and the braking systems of trains and roller...
Specific Heat
For example, increasing the temperature of one gram of water by 1°C requires one calorie of heat energy and can be written as 1 cal/g-°C, or...
Ferromagnetism

