Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 1/08/1998 |
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<mark>Journal</mark> | Physical review B |
Issue number | 5 |
Volume | 58 |
Number of pages | 3 |
Pages (from-to) | 2442-2444 |
Publication Status | Published |
<mark>Original language</mark> | English |
We have studied the effect of a random superconducting order parameter on the localization of quasiparticles, by numerical finite-size scaling of the Bogoliubov-de Gennes tight-binding Hamiltonian. Anderson localization is obtained in d = 2 and a mobility edge where the states localize is observed in d = 3. The critical behavior and localization exponent are universal within error bars both for real and complex random order parameter. Experimentally these results imply a suppression of thr electronic contribution to thermal transport from states above the bulk energy gap.