Anomalous electromagnetic response in the spin-triplet superconductor UTe2
Yusei Shimizu, Shunichiro Kittaka, Yohei Kono, Toshiro Sakakibara, Kazushige Machida, Ai Nakamura, Dexin Li, Yoshiya Homma, Yoshiki J. Sato, Atsushi Miyake, Minoru Yamashita, Dai Aoki
DOI 10.1103/PhysRevB.106.214525 · Physical Review B
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
The recently discovered heavy-fermion superconductor UTe2, as a promising candidate for an odd-parity superconductivity, exhibits anomalous magnetic-field reinforced superconductivity with a huge upper critical field of 35 T. However, the thermodynamic properties of this unconventional superconductivity still remain unclear. Herein we present the results of dc magnetization and heat capacity measurements in UTe2 to probe the magnetic response at low temperatures. The obtained isothermal magnetization in the superconducting state of UTe2 clearly demonstrates the anomalous magnetic flux pinning effect, which is most likely related to the peculiar electromagnetic response of the spin-triplet pairing state in the hard-magnetization axis (orthorhombic b axis). The ac susceptibility measurements support the anomalous vortex states in UTe2. We also found evidence for the Lifshitz transition just above Hc2 and the anomalous flux pinning anomalies for the easy-magnetization axis (a axis).
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UTe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.6 | Pressure not reported | onset |
| UTe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.6 | Pressure not reported | onset |
| UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| UGe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| URhGe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| UCoGe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Longitudinal Spin Fluctuations Driving Field-Reinforced Superconductivity in UTe2
similarity 0.96Y. Tokunaga et al.
Source status unknown — claims are unverified
Coexistence of ferromagnetic fluctuations and superconductivity in the actinide superconductor UTe2
similarity 0.96Shyam Sundar et al.
Source status unknown — claims are unverified
Topological spin texture and d-vector rotation in spin-triplet superconductors: A case of UTe2
similarity 0.96Yasumasa Tsutsumi & Kazushige Machida
Source status unknown — claims are unverified
Boosted magnetic fluctuations at the onset of superconductivity in UTe2 beyond 40 T
similarity 0.96T. Thebault et al.
Source status unknown — claims are unverified
Reinforcement of superconductivity by quantum critical fluctuations of metamagnetism in UTe2
similarity 0.96Y. Tokiwa et al.
Source status unknown — claims are unverified
Fermi-Surface Instability in the Heavy-Fermion Superconductor UTe2
similarity 0.96Q. Niu et al.
Source status unknown — claims are unverified