| Autor: |
Llanos, Adrian, Campisi, Giovanna, Show, Veronica, Kim, Jinwoong, Dorrian, Reiley, Salmani-Rezaie, Salva, Kioussis, Nicholas, Falson, Joseph |
| Zdroj: |
Nano Letters; 20240101, Issue: Preprints |
| Abstrakt: |
Rare-earth diantimondes exhibit coupling between structural and electronic orders, which are tunable under pressure and temperature. Here we present the discovery of a new polymorph of LaSb2stabilized in thin films synthesized using molecular beam epitaxy. Using diffraction, electron microscopy, and first-principles calculations we identify a YbSb2-type monoclinic lattice as a yet-uncharacterized stacking configuration. The material hosts superconductivity with a Tc= 2 K, which is enhanced relative to the bulk ambient phase, and a long superconducting coherence length of 1730 Å. This result highlights the potential thin film growth has in stabilizing novel stacking configurations in quasi-two-dimensional compounds with competing layered structures. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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