Anisotropic magnetotransport properties of the heavy-fermion superconductor CeRh2As2
S. Mishra, Y. Liu, E. D. Bauer, F. Ronning, S. M. Thomas
DOI 10.1103/PhysRevB.106.L140502 · Physical Review B
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Abstract
We report anisotropic resistivity measurements of the heavy-fermion superconductor CeRh2As2 in magnetic fields up to 16 T and temperatures down to 0.35 K. The measured CeRh2As2 resistivity shows a signature corresponding to the suggested quadrupole-density-wave order state at T0∼0.5 K for both measured directions. For a magnetic field applied along the tetragonal a axis, T0 is enhanced with magnetic field reaching ∼1.75 K at 16 T. Further, a magnetic field-induced transition occurs at μ0Hm∼8.1 T corresponding to a change to a new broken symmetry state. For a magnetic field applied along the c axis, T0 is suppressed below our base temperature ∼0.35 K by μ0H∼4.5 T, a field close to the previously reported field-induced transition within the superconducting state suggested to be from an even-parity to an odd-parity state. Our results indicate that the multiple superconducting phases in CeRh2As2 are intimately tied to the suppression of the proposed quadrupole-density-wave phase at T0.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CeRh2As2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.26 | Pressure unresolved | zero_resistance |
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| UTe2 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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