Impurity-controlled superconductivity/spin density wave interplay in the organic superconductor: (TMTSF) 2 ClO 4
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چکیده
منابع مشابه
Impurity controlled Superconductivity/Spin Density Wave interplay in the organic superconductor : (TMTSF)_2ClO_4
– The study of the anion ordered (TMTSF )2ClO4(1−x)ReO4x solid solution in the limit of a low ReO− 4 substitution level (0 ≤ x ≤ 17%) has revealed a new and interesting phase diagram. Superconductivity is drastically suppressed as the effect of ReO− 4 non magnetic point defects increases following the digamma behaviour for usual superconductors in the presence of paramagnetic impurities. Then, ...
متن کاملElectron Density Distribution in the Organic Superconductor (TMTSF)2AsF6.
Excellent crystals of (TMTSF)(2)AsF(6) (TMTSF, tetramethyltetraselenafulvalene) were employed to obtain x-ray diffraction data for a determination of the electron density distribution in this organic superconductor. Electron density was observed between molecules in a stack of donors of an organic metal and between certain interstack selenium atoms of these donors.
متن کاملCoexistence of Superconductivity and Spin Density Wave orderings in the organic superconductor (TMTSF)2PF6
The phase diagram of the organic superconductor (TMTSF)2PF6 has been revisited using transport measurements with an improved control of the applied pressure. We have found a 0.8 kbar wide pressure domain below the critical point (9.43 kbar, 1.2 K) for the stabilisation of the superconducting ground state featuring a coexistence regime between spin density wave (SDW) and superconductivity (SC). ...
متن کاملSpecific heat measurements of organic superconductivity in ( TMTSF ) 2 ClO 4
2014 The specific heat of the organic superconductor (TMTSF)2ClO4 has been measured between 0.4 and 2 K. A large anomaly of the electronic contribution at 1.22 K has been attributed to the onset of three-dimensional superconducting order. There is a large magnetic field dependence of the electronic contribution above 1.22 K which is not characteristic of a normal conducting state. The applicati...
متن کاملObservation of a Non-Magnetic Impurity Effect in the Organic Superconductor (TMTSF)2ClO4
We report a non-magnetic impurity effect on the superconductivity observed in (TMTSF)2ClO4. By varying the sample cooling rate in the vicinity of an anion ordering transition at TAO = 24 K, we can systematically control the amount of disorder in the sample. We then use dc transport and microwave periodic orbit resonance measurements (closely related to cyclotron resonance) to determine the crit...
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ژورنال
عنوان ژورنال: Europhysics Letters (EPL)
سال: 2005
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i2005-10281-1