Superconductivity at atmospheric pressure in (ET)4Hg(2.89)Br8 at Tc = 4.3 K and critical-field anisotropy
Abstract
An analysis is made of the structure of the organic metal (ET)4Hg(2.89)Br8, which becomes superconducting at Tc = 4.3 K at atmospheric pressure. X-ray structural analysis demonstrates the existence of two incommensurable lattices. The upper critical fields Hc2(parallel) and Hc2(perpendicular) are characterized by positive curvature as a function of temperature; and the critical-field anisotropy is shown to have a high value. These results indicate that the compound considered is a two-dimensional superconductor.
- Publication:
-
Pisma v Zhurnal Eksperimentalnoi i Teoreticheskoi Fiziki
- Pub Date:
- August 1987
- Bibcode:
- 1987PZETF..46..149L
- Keywords:
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- Crystal Lattices;
- Organometallic Compounds;
- Superconductivity;
- X Ray Analysis;
- Solid-State Physics