Enhanced critical temperature in a dual-layered molecular superconductor

John A Schlueter; Leonore Wiehl; Hyunsoo Park; Mariano de Souza; Michael Lang; Hyun-Joo Koo; Myung-Hwan Whangbo

doi:10.1021/ja105854m

Enhanced critical temperature in a dual-layered molecular superconductor

J Am Chem Soc. 2010 Nov 24;132(46):16308-10. doi: 10.1021/ja105854m. Epub 2010 Nov 1.

Authors

John A Schlueter¹, Leonore Wiehl, Hyunsoo Park, Mariano de Souza, Michael Lang, Hyun-Joo Koo, Myung-Hwan Whangbo

Affiliation

¹ Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States. JASchlueter@anl.gov

PMID: 21038887
DOI: 10.1021/ja105854m

Abstract

Single-crystal X-ray diffraction has shown that the high-critical-temperature (T(c)) phase of the filamentary molecular superconductor (BEDT-TTF)(2)Ag(CF(3))(4)(1,1,2-trichloroethane) [BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene] contains layers of BEDT-TTF radical cations with alternating κ- and α'-type packing motifs. This molecule-based superconductor with dual BEDT-TTF packing motifs has a T(c) five times higher than that of its polymorph that contains only κ-type packing.