Temperature dependent anisotropy of the penetration depth and coherence length in MgB$_2

J. D. Fletcher, A. Carrington, O. J. Taylor +2

We report measurements of the temperature dependent anisotropies (${\gamma }_{\lambda }$ and ${\gamma }_{\xi }$) of both the London penetration depth $\lambda$ and the upper critical field of MgB${}_2$. Data for $γ_λ=λ…