Uniaxial negative thermal expansion in an orthorhombic superconductor CoZr3

Abstract

We investigated the temperature evolution of crystal structure of orthorhombic CoZr3, which is a superconductor with a transition temperature of 4.3 K, by synchrotron and laboratory (CuKα) X-ray diffraction. Uniaxial negative thermal expansion along the c-axis, which is similar to that observed in tetragonal CoZr2, has been observed at a wide temperature range of T = 90-800 K in CoZr3, while a-and b-axis exhibit positive thermal expansion.

9 pages, 3 figures, supplemental materials

References in corpus (3)

• Magnetic Ordering and Negative Thermal Expansion in PrFeAsO
• Anomalous thermal expansion in a CuAl2-type superconductor CoZr2
• Superconductivity of high-entropy-alloy-type transition-metal zirconide (Fe,Co,Ni,Cu,Ga)Zr2

Cited by in corpus (2)

• Pressure-induced volumetric negative thermal expansion in CoZr2 superconductor
• Uniaxial negative thermal expansion in a tetragonal V3S-type superconductor IrZr3