Double superconducting transition in PrOs 4 Sb 12 has been studied carefully by local magnetization measurements using Hall probe array. Local magnetization curves for each element of the Hall probe reveal that there exists a significant difference in the transition temperature at each point; two ph
Peculiar superconductivity in PrOs4Sb12 probed by local magnetization
โ Scribed by Shigeru Kasahara; Tsuyoshi Tamegai; Hitoshi Sugawara; Hideyuki Sato
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 222 KB
- Volume
- 426-431
- Category
- Article
- ISSN
- 0921-4534
No coin nor oath required. For personal study only.
โฆ Synopsis
We performed local magnetization measurements in the superconducting state of PrOs 4 Sb 12 using micro-Hall probe. For a magnetic field applied along one of the principal axes, a remarkable dip structure in the magnetization hysteresis loop was observed close to zero local magnetic induction. The anomaly is most pronounced when the magnetic field is applied only in a certain axis of the crystal, and is not observed along other two axes. We believe that the anomaly close to zero induction is universal to the spin-triplet superconductors with broken time-reversal symmetry.
๐ SIMILAR VOLUMES
Local magnetization measurements were performed by micro Hall-probe technique in the superconducting state of PrOs 4 Sb 12 , in which the time-reversal symmetry is broken. We have observed positive, i.e. ferromagnetic like, local magnetic induction just below the superconducting transition temperatu
Superconducting pair formation in heavy fermion (HF) compounds is usually attributed to the exchange of over-damped bosonic spin fluctuation modes in the itinerant quasiparticle system. A different mechanism based on the exchange of propagating CEF excitations, i.e., magnetic excitons has previously