| Original language | English |
|---|---|
| Pages (from-to) | 72 |
| Number of pages | 1 |
| Journal | Nature Materials |
| Volume | 3 |
| Issue number | 1 |
| DOIs |
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| State | Published - Jan 2004 |
Bibliographical note
Funding Information:This work was supported in part by the National Research Council (C.N.R.), Rome, Italy; and by the Ministry of University, Research, Science and Technology (M.U.R.S.T.), Rome, Italy.