Universal scaling of the Hall resistivity in MgB2 superconductors
W. N. Kang, Hyeong-Jin Kim, Eun-Mi Choi, Heon Jung Kim, Kijoon H. P. Kim, Sung-Ik Lee
DOI 10.1103/PhysRevB.65.184520 · Physical Review B
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Abstract
The mixed-state Hall resistivity ρxy and the longitudinal resistivity ρxx in superconducting MgB2 thin films have been investigated as a function of the magnetic field over a wide range of current densities from 102 to 104 A/cm2. We observe a universal Hall scaling behavior with a constant exponent β of 2.0±0.1 in ρxy=Aρxxβ, which is independent of the magnetic field, the temperature, and the current density. This result can be interpreted well within the context of recent theories.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| MgB2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 39.2 | Pressure not reported | onset |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Tl2Ba2Ca2Cu3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| HgBa2CaCu2O6 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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