Phenomenological Theory of Superconductivity and Magnetism in Ho1−xDyxNi2B2C
Hyeonjin Doh, Manfred Sigrist, B. K. Cho, Sung-Ik Lee
DOI 10.1103/PhysRevLett.83.5350 · Physical Review Letters
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Abstract
The coexistence of the superconductivity and magnetism in the Ho1−xDyxNi2B2C is studied by using Ginzburg-Laudau theory. This alloy shows the coexistence and complex interplay of superconducting and magnetic order. We propose a phenomenological model which includes two magnetic and two superconducting order parameters accounting for the multiband structure of this material. We describe phenomenologically the magnetic fluctuations and order and demonstrate that they lead to anomalous behavior of the upper critical field. The doping dependence of Tc in Ho1−xDyxNi2B2C showing a reentrance behavior is analyzed yielding very good agreement with experimental data.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ho1-xDyxNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| LuNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 16.6 | Pressure not reported | onset |
| HoNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| DyNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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