Paramagnetic state in d-wave Superconductors
H. Won, H. Jang, K. Maki
TL;DR
This paper theoretically investigates the paramagnetic state in d-wave superconductors, analyzing specific heat, magnetization, and superfluid density, with predictions applicable to high-T_c cuprates and organic salts under magnetic fields.
Contribution
It provides a theoretical analysis of the paramagnetic state in d-wave superconductors, including specific heat, magnetization, and superfluid density behaviors at low temperatures and fields.
Findings
Power law behaviors of thermodynamic quantities at low T and small magnetic fields
Predictions applicable to high-T_c cuprates and organic salts
Accessible experimental signatures in magnetic field studies
Abstract
We study theoretically the paramagnetic state in d-wave superconductors. We present the specific heat, the magnetization, superfluid density obtained within the weak-coupling model. At low temperatures and for small magnetic fields they exhibit simple power law behaviors, which should be accessible experimentally in hole-doped high-T_c cuprates and \kappa-(ET)_2 salts in a magnetic field within the conducting plane.
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