Abstract
We report on the study of the electronic anisotropy of the MgB2 superconductor using the in-plane resistivity measurements in the magnetic field applied perpendicular and parallel to Mg and B planes of MgB2 single crystals. The results show the temperature dependent anisotropy of the upper critical field with the anisotropy ratio γ = Hc2∥/Hc2⊥ increasing from 2.2 close to Tc up to about 3 below 30 K. Our estimation of the in-plane and out-of-plane coherence length of about ξab(0) = 68 Å and ξc(0) = 23 Å and the electronic mean-free path lab = 240 ̊, and lc = 60 ̊, respectively, indicates MgB2 single crystal approaches the clean limit type-II superconductor.
| Original language | English |
|---|---|
| Article number | 140501 |
| Pages (from-to) | 1405011-1405014 |
| Number of pages | 4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 65 |
| Issue number | 14 |
| Publication status | Published - 2002 Apr 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Eltsev, Y., Lee, S., Nakao, K., Chikumoto, N., Tajima, S., Koshizuka, N., & Murakami, M. (2002). Anisotropic superconducting properties of MgB2 single crystals probed by in-plane electrical transport measurements. Physical Review B - Condensed Matter and Materials Physics, 65(14), 1405011-1405014. [140501].