arXiv subjects

R. D. Duncan

Publications and source records attributed to R. D. Duncan.

3 recordsLinked to original sources

arXiv2003

Josephson Effect Between Triplet Superconductors: A Self-Test for the Order Parameter Symmetry of Bechgaard Salts

We show that the Josephson effect between triplet superconductors is sensitive to the relative orientation of the d-vectors across the junction. In addition, we point out that the temperature and angular dependence of the Josephson effect can help distinguish between different order parameter symmetries. We discuss coherent and incoherent tunneling processes, and the role of surface bound states within the framework of non-local lattice Bogoliubov-deGennes equations.

cond-mat.supr-con↗

arXiv2002

Uniform spin susceptibility tensor and quasiparticle density of states in organic quasi-one-dimensional superconductors

We perform calculations relating the order parameter symmetry of organic quasi-one-dimensional superconductors to the bulk quasiparticle density of states and the bulk uniform spin susceptibility tensor at finite temperatures. Current experimental results suggest that some organic quasi-one-dimensional superconductors may exhibit triplet pairing symmetry. The purpose of our analysis is to attempt to narrow down the number of possibilities for the symmetry of the order parameter based on the experimental evidence.

cond-mat.supr-con↗

arXiv2001

Order parameter of quasi-one-dimensional superconductors: symmetry features in quasiparticle density of states and spin susceptibility

Recent experiments indicate that the Bechgaard salts (TMTSF)$_2$ ClO$_4$ and (TMTSF)$_2$ PF$_6$ may be unconventional triplet superconductors. The quasiparticle density of states and the uniform spin susceptibility tensor are computed at low temperatures for order parameter symmetries, as an attempt to narrow the number of possibilities based on experimental evidence.

cond-mat.supr-con↗