Coexistence of Antiferromagnetism with Superconductivity in CePt2In7: Microscopic Phase Diagram Determined by In115 NMR and NQR
H. Sakai, Y. Tokunaga, S. Kambe, F. Ronning, E. D. Bauer, J. D. Thompson
DOI 10.1103/PhysRevLett.112.206401 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Single crystals of the heavy-fermion antiferromagnet CePt2In7 with a Néel temperature (TN) of 5.2 K at ambient pressure have been investigated by zero-field In115-nuclear magnetic and quadrupole resonance measurements as a function of applied pressure. Within the antiferromagnetic state, the character of Ce’s 4f electron appears to change from localized to itinerantlike at P*∼2.4 GPa, approximately the pressure where superconductivity first emerges. With increased pressure, the superconducting transition Tc reaches a maximum just at or slightly before antiferromagnetic order disappears, and not at the pressure Pc∼3.4 GPa, where the steeply decreasing Néel boundary extrapolates to zero temperature. For P>Pc, the spin relaxation rate drops sharply by more than 2 orders of magnitude at Tc, suggestive of a first-order transition.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CePt2In7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2 | 3.1 GPa | onset |
| CePt2In7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2 | 3.1 GPa | onset |
| CePt2In7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.5 | 3.7 GPa | onset |
| CeRhIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.6 | Pressure not reported | unknown |
Similar papers
Pressure-temperature phase diagram of antiferromagnetism and superconductivity in CeRhIn5 and CeIn3: 115In−NQR study under pressure
similarity 0.95S. Kawasaki et al.
Source status unknown — claims are unverified
Pressure-induced superconducting state and effective mass enhancement near the antiferromagnetic quantum critical point of CePt2In7
similarity 0.95E. D. Bauer et al.
Source status unknown — claims are unverified
Coexistence of antiferromagnetism and superconductivity in CeRhIn5 under high pressure and magnetic field
similarity 0.95G. Knebel et al.
Source status unknown — claims are unverified
Pressure-induced anomalous magnetism and unconventional superconductivity in CeRhIn5: 115In-NQR study under pressure
similarity 0.93T. Mito et al.
Source status unknown — claims are unverified
Coexistence of superconductivity and antiferromagnetism in CeRh1−xCoxIn5
similarity 0.92V. S. Zapf et al.
Source status unknown — claims are unverified
Phase diagram for antiferromagnetism and superconductivity in the pressure-induced heavy-fermion superconductor Ce2RhIn8 probed by I115n-NQR
similarity 0.92M. Yashima et al.
Source status unknown — claims are unverified