arxiv: cond-mat/0307445 · v1 · pith:LRJQWQNFnew · submitted 2003-07-17 · ❄️ cond-mat.supr-con

Surface Contribution to the Superconducting Properties of MgB2 Single Crystals

A. Rydh , U. Welp , J. M. Hiller , A. Koshelev , W. K. Kwok , G. W. Crabtree , K. H. P. Kim , C. U. Jung

show 3 more authors

H.-S. Lee B. Kang S.-I. Lee

This is my paper

classification ❄️ cond-mat.supr-con

keywords crystalcrystalsmeasurementsmgb2singlesurfacesurfacestransport

0 comments p. Extension

Add this Pith Number to your LaTeX paper

What is a Pith Number?

\usepackage{pith}
\pithnumber{LRJQWQNF}

Prints a linked pith:LRJQWQNF badge after your title and writes the identifier into PDF metadata. Compiles on arXiv with no extra files. Learn more

read the original abstract

We demonstrate direct evidence of possible surface superconductivity on small, well-shaped MgB2 single crystals. Transport measurements in the range H < 1.6 Hc2^c, where Hc2^c is the bulk upper critical field for the c axis, show non-Ohmic and strongly angular dependent resistivity. Studies of the alignment of H with selected crystal surfaces, transport and specific heat measurements on the same crystal, and a physical sculpturing of the crystal surfaces using a focused ion beam all support the conclusion. Similar, albeit less pronounced results are obtained for fields in the basal plane.

This paper has not been read by Pith yet.

Surface Contribution to the Superconducting Properties of MgB2 Single Crystals

discussion (0)