In Tinkham's "Introduction to Superconductivity" Second Edition, Chapter 2.2.1, the author discusses the problem of a superconducting slab in a uniform external field. In the solution presented by the author, the magnetic flux density inside the superconductor is given by \begin{align} h = H_a \frac{\cosh(y/\lambda)}{\cosh(d/2\lambda)}, \quad -d/2<y<d/2, \end{align} where $d$ is the slab's thickness, $\lambda$ is the penetration depth and $H_a$ is the magnetic flux density of the external field. The author achieves this by setting the boundary condition $h(-d/2) = h(d/2) = H_a$ and using the London equations. It is not mentioned what is the solution for the field outside the slab, so I presume it is considered to be constant ($h=H_a$). What I find disturbing is that this would mean that the presence of the superconductor has no influence on the field around it, whereas I would expect it to bend the field lines as in the usual Meissner effect representations.
Moreover, in this paper, by Fiolhais and Essén, a similar problem is solved, but for a cylindrical superconductor, instead of a slab. In this paper a slightly different approach is used, where the boundary condition is set at infinity (${\bf B}(\rho=\infty) = {\bf B_0}$). This leads to a result where the field at the interface between the superconductor and vacuum is not ${\bf B_0}$ and neither is the field around it. This is more in line with the usual depictions of the Meissner effect.
My question is: which of these treatments is correct? Am I correct to understand that the field outside the superconductor is constant in Thinkham's solution? Also, Thinkham's notation seems outdated, is its ${\bf h}$ equivalent to the modern paper's ${\bf B}$ or does it represent something else?
Bonus Question: In the conclusion to their paper, Fiolhais and Essén state that their result is only valid for type II superconductors because of the smaller penetration depth compared to coherence length in type I superconductors. They also state that it's only valid below the lower critical field. Are these assertions also valid for Thinkham's solution?