Understanding the totally symmetric intramolecular vibrations inκ-phase organic superconductors

2005 ◽  
Vol 71 (21) ◽  
Author(s):  
R. Wesołowski ◽  
J. T. Haraldsen ◽  
J. Cao ◽  
J. L. Musfeldt ◽  
I. Olejniczak ◽  
...  
Keyword(s):  
Organic Superconductors ◽  
Intramolecular Vibrations

Electrodynamics of molecular organic superconductors studied by μ SR

2004 ◽  
Vol 114 ◽  
pp. 367-369 ◽  
Author(s):  
F. L. Pratt ◽  
S. J. Blundell ◽  
T. Lancaster ◽  
S. L. Lee ◽  
N. Toyota
Keyword(s):  
Organic Superconductors

ORGANIC SUPERCONDUCTORS - THE ROLE OF UMKLAPP, RETARDATION AND ANISOTROPY

1983 ◽  
Vol 44 (C3) ◽  
pp. C3-983-C3-989 ◽  
Author(s):  
H. Gutfreund ◽  
B. Horovitz ◽  
M. Weger
Keyword(s):  
Organic Superconductors

scholarly journals Evolution of Shape and Volume Fraction of Superconducting Domains with Temperature and Anion Disorder in (TMTSF)2ClO4

Crystals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 72
Author(s):  
Kaushal K. Kesharpu ◽  
Vladislav D. Kochev ◽  
Pavel D. Grigoriev
Keyword(s):  
Cooling Rate ◽  
Annealing Time ◽  
Volume Fraction ◽  
Density Wave ◽  
Spin Density Wave ◽  
Finite Size ◽  
Organic Superconductors ◽  
Organic Superconductor ◽  
Sample Length ◽  
Sample Shape

In highly anisotropic organic superconductor (TMTSF)2ClO4, superconducting (SC) phase coexists with metallic and spin-density wave phases in the form of domains. Using the Maxwell-Garnett approximation (MGA), we calculate the volume ratio and estimate the shape of these embedded SC domains from resistivity data at various temperature and anion disorder, controlled by the cooling rate or annealing time of (TMTSF)2ClO4 samples. We found that the variation of cooling rate and of annealing time affect differently the shape of SC domains. In all cases the SC domains have oblate shape, being the shortest along the interlayer z-axis. This contradicts the widely assumed filamentary superconductivity along the z-axis, used to explain the anisotropic superconductivity onset. We show that anisotropic resistivity drop at the SC onset can be described by the analytical MGA theory with anisotropic background resistance, while the anisotropic Tc can be explained by considering a finite size and flat shape of the samples. Due to a flat/needle sample shape, the probability of percolation via SC domains is the highest along the shortest sample dimension (z-axis), and the lowest along the sample length (x-axis). Our theory can be applied to other heterogeneous superconductors, where the size d of SC domains is much larger than the SC coherence length ξ, e.g., cuprates, iron-based or organic superconductors. It is also applicable when the spin/charge-density wave domains are embedded inside a metallic background, or vice versa.

de Haas–van Alphen studies of the organic superconductors α-(ET)2(NH4)Hg(SCN)4and κ-(ET)2Cu(NCS)2[with ET = bis(ethelenedithio)-tetrathiafulvalene]

1992 ◽  
Vol 45 (6) ◽  
pp. 3018-3025 ◽  
Author(s):  
J. Wosnitza ◽  
G. W. Crabtree ◽  
H. H. Wang ◽  
U. Geiser ◽  
J. M. Williams ◽  
...  
Keyword(s):  
Organic Superconductors

scholarly journals Quasi-two-dimensional organic superconductors: A review

2002 ◽  
Vol 43 (2) ◽  
pp. 63-96 ◽  
Author(s):  
John Singleton ◽  
Charles Mielke
Keyword(s):  
Organic Superconductors ◽  
Two Dimensional

Isotope Effect on Physical Properties of BEDT-TTF Based Organic Superconductors

1992 ◽  
Vol 67 (1-4) ◽  
pp. 295-300 ◽  
Author(s):  
Tokutaro Komatsu ◽  
Nozomu Matsukawa ◽  
Toshikazu Nakamura ◽  
Hideki Yamochi ◽  
Gunzi Saito ◽  
...  
Keyword(s):  
Physical Properties ◽  
Isotope Effect ◽  
Organic Superconductors
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