The penetration depth in Sr 2 RuO 4 : Evidence for orbital-dependent superconductivity
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چکیده
منابع مشابه
The penetration depth in Sr2RuO4: Evidence for orbital dependent superconductivity
– The apparent T -temperature dependence of the London penetration depth in Sr2RuO4 is discussed on the basis of a multi-gap model with horizontal line nodes. The influence of the nodes in combination with nonlocal electromagnetic response leads to low-temperature behaviors as −T 2 lnT in the London limit and as T 2 in the Pippard limit. These behaviors appear only at very low temperature. On t...
متن کاملUnconventional superconductivity in Sr 2 RuO 4
We have performed ZF-lSR measurements of Sr 2 RuO 4 and have observed a spontaneous magnetic "eld below 1 # . This observation, combined with other symmetry considerations demonstrates that superconductivity in Sr 2 RuO 4 is of &p-wave' (odd-parity) type. Our transverse "eld lSR measurements in the mixed state with B"150 GDDc( clearly indicate the presence of a square #ux lattice. We have analy...
متن کامل0 Superconductivity In Disordered Sr 2 RuO
Recent experimental evidence suggests that the Cooper pairs in superconducting Sr2RuO4 are triplets with p-wave internal symmetry, as in the case of superfluid 3He1–4. One of characteristic features of this exotic state is the strong influence of impurities on its superconducting properties. Studies of the electronic structure in Sr2RuO4 2 have identified an extended van Hove singularity close ...
متن کاملPossible f - wave superconductivity in Sr 2 RuO 4 ?
– Until recently it has been believed that the superconductivity in Sr2RuO4 is described by p-wave pairing. However, both the recent specific heat and the magnetic penetration depth measurements on the purest single crystals of Sr2RuO4 appear to be explained more consistently in terms of f-wave superconductivity. In order to further this hypothesis, we study theoretically the thermodynamics and...
متن کاملPressure E ect on Superconductivity and Normal State of Sr 2 RuO 4
We studied electrical resistivity and the Hall coe cient of single-crystalline samples of an oxide superconductor Sr2RuO4 under hydrostatic pressures up to 1.2 GPa. The value of Tc decreases by 36 % at 1.2 GPa, while no appreciable change in the resistivity or the Hall coe cient has been observed. At room temperature an unexpected increase of resistivity along the c axis occurs with increasing ...
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ژورنال
عنوان ژورنال: Europhysics Letters (EPL)
سال: 2002
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i2002-00348-5