Spin density wave and superconducting properties of nanoparticle organic conductor assemblies

Laure E. Winter (1) , Eden Steven (1) , James S. Brooks (1) , Shermane Benjamin (1) , Ju-Hyun Park (1) , Dominique De Caro (2, 3) , C. Faulmann (2) , Lydie Valade (2) , Kane Jacob (2) , Imane Chtioui (2) , Belén Ballesteros (4, 5) , Jordi Fraxedas (4, 5)

1 FSU - Florida State University [Tallahassee]
2 LCC - Laboratoire de chimie de coordination
3 UT3 - Université Toulouse III - Paul Sabatier
4 ICN2 - ICN2 - Institut Catala de Nanociencia i Nanotecnologia
5 Consejo Superior de Investigaciones Cientificas, Barcelone

The magnetic susceptibilities of nanoparticle assemblies of two Bechgaard salts (TMTSF)2PF6 and (TMTSF)2ClO4, have been studied vs temperature and magnetic field. In the bulk these materials exhibit a spin density wave formation (TSDW = 12 K) and superconductivity (Tc = 1.2K), respectively. We show from inductive (susceptibility) measurements that the nanoparticle assemblies exhibit ground-state phase transitions similar to those of randomly oriented polycrystalline samples of the parent materials. Resistivity and diamagnetic hielding measurements yield additional information on the functional nanoparticle structure in terms of stoichiometric and nonstoichiometric composition.

Domaines: Chimie de coordination

Laure E. Winter, Eden Steven, James S. Brooks, Shermane Benjamin, Ju-Hyun Park, et al.. Spin density wave and superconducting properties of nanoparticle organic conductor assemblies. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2015, 91 (3), pp.035437/1-7. ⟨10.1103/PhysRevB.91.035437⟩. ⟨hal-01909680⟩