Pressure-induced change of the pairing symmetry in superconducting CeCu2Si2 Export

@article{citeulike:6080130, abstract = {Low-temperature (T) heat-capacity measurements under hydrostatic pressure of up to p=2.1 GPa have been performed on single-crystalline CeCu2Si2. A broad superconducting (SC) region exists in the T-p phase diagram. In the low-pressure region antiferromagnetic spin fluctuations and in the high-pressure region valence fluctuations had previously been proposed to mediate Cooper pairing. We could identify these two distinct SC regions. We found different thermodynamic properties of the SC phase in both regions, supporting the proposal that different mechanisms might be implied in the formation of superconductivity.}, archivePrefix = {arXiv}, author = {Lengyel, E. and Nicklas, M. and Jeevan, H. S. and Sparn, G. and Geibel, C. and Steglich, F. and Yoshioka, Y. and Miyake, K.}, citeulike-article-id = {6080130}, citeulike-linkout-0 = {http://arxiv.org/abs/0911.0898}, citeulike-linkout-1 = {http://arxiv.org/pdf/0911.0898}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevB.80.140513}, day = {4}, doi = {10.1103/PhysRevB.80.140513}, eprint = {0911.0898}, keywords = {cecu2si2, heat}, month = {Nov}, posted-at = {2009-11-06 08:06:18}, priority = {2}, title = {Pressure-induced change of the pairing symmetry in superconducting CeCu2Si2}, url = {http://dx.doi.org/10.1103/PhysRevB.80.140513}, year = {2009} }

TY - JOUR ID - citeulike:6080130 L3 - citeulike-article-id:6080130 N2 - Low-temperature (T) heat-capacity measurements under hydrostatic pressure of up to p=2.1 GPa have been performed on single-crystalline CeCu2Si2. A broad superconducting (SC) region exists in the T-p phase diagram. In the low-pressure region antiferromagnetic spin fluctuations and in the high-pressure region valence fluctuations had previously been proposed to mediate Cooper pairing. We could identify these two distinct SC regions. We found different thermodynamic properties of the SC phase in both regions, supporting the proposal that different mechanisms might be implied in the formation of superconductivity. TI - Pressure-induced change of the pairing symmetry in superconducting CeCu2Si2 KW - cecu2si2 KW - heat AU - Lengyel, E AU - Nicklas, M AU - Jeevan, HS AU - Sparn, G AU - Geibel, C AU - Steglich, F AU - Yoshioka, Y AU - Miyake, K PY - 2009/Nov/04/ UR - http://dx.doi.org/10.1103/PhysRevB.80.140513 ER -