Observation of an Unusual Magnetic Anomaly in the Superconducting Mixed State of Heavy-Fermion Compound UBe13 by Precise dc Magnetization Measurements
Yusei Shimizu, Yoshinori Haga, Yoichi Ikeda, Tatsuya Yanagisawa, Hiroshi Amitsuka
DOI 10.1103/PhysRevLett.109.217001 · 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
We have performed precise dc magnetization measurements for a single crystal of UBe13 down to 0.14 K, up to 80 kOe. We observed a magnetic anomaly in the superconducting (SC) mixed state at a field, named HMag* (∼26 kOe, at 0.14 K), implying that UBe13 has a magnetically unusual SC state. We studied the magnetization curves of UBe13, assuming that the HMag* anomaly originates from (1) and unusual SC diamagnetic response, or (2) a peculiarity of the normal-state magnetization due to vortices in the SC mixed state. The origin of the HMag* anomaly is discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.85 | Pressure not reported | unknown |
Similar papers
Pressure dependence of the static magnetic susceptibility of the heavy-fermion superconductor UBe13
similarity 0.96M. McElfresh et al.
Source status unknown — claims are unverified
Magnetic Field Penetration Depth in the Heavy-Electron Superconductor UBe13
similarity 0.96D. Einzel et al.
Source status unknown — claims are unverified
Magnetic anisotropy and thermodynamic anomaly in the superconducting mixed state of UBe13 probed by static dc magnetization measurements
similarity 0.95Yusei Shimizu et al.
Source status unknown — claims are unverified
Spectroscopic Evidence for Unconventional Superconductivity in UBe13
similarity 0.94Ch. Wälti et al.
Source status unknown — claims are unverified
Muon spin relaxation and rotation measurements on single crystals of the heavy-fermion superconductor UBe13
similarity 0.94P. Dalmas de Réotier et al.
Source status unknown — claims are unverified
Magnetic field studies of superconducting UBe13 thin films
similarity 0.94P. M. Tedrow & J. H. Quateman
Source status unknown — claims are unverified