La2Sb, a layered superconductor with metal-metal bonds

Abstract

We found La2Sb with a layered structure composed of alternate stacking of La square nets and LaSb layers exhibits bulk superconductivity with a critical temperature of 5.3 K. This suggests that the presence of the square net with strong La-La metal bonding is essential for the emergence of superconductivity.

9 pages, 3 figures

References in corpus (3)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• The superconductivity at 18 K in LiFeAs system
• Thorium-doping induced superconductivity up to 56 K in Gd1-xThxFeAsO

Cited by in corpus (1)

• Exploration of new superconductors and functional materials and fabrication of superconducting tapes and wires of iron pnictides