Abstract
The possibility for a superconducting instability due to the exchange of magnetic fluctuations is studied by means of low-density expansion. It is shown that if the magnetic fluctuations are centered at (π,π), they uniquely favor dx2-y2 superconductivity close to the magnetic instability no matter at which doping concentration this instability occurs. However, if the magnetic fluctuations are centered around the incommensurate (π(1-δ),π) point in the Brillouin zone, they tend to suppress any type of superconductivity.
Original language | English (US) |
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Pages (from-to) | 5588-5592 |
Number of pages | 5 |
Journal | Physical Review B |
Volume | 46 |
Issue number | 9 |
DOIs | |
State | Published - 1992 |