Fabrication of artificial heavy fermion superlattices by the molecular beam epitaxy
Abstract
We have grown artificial superlattices of CeIn3 (m) / LaIn3 (n), in which m-layers of heavy-fermion antiferromagnet CeIn3 and n-layers of a non-magnetic isostructual compound LaIn3 are stacked alternately, by a molecular beam epitaxy. Growth process were monitored by reflection high energy electron diffraction (RHEED). Sharp streak pattern of RHEED indicates the epitaxial growth of thin films. Satellite peaks observed in a X-ray diffraction pattern also indicates the superlattice structure. By reducing the thickness of CeIn3, we observe a suppression of antiferromagnetic order and an enhancement of effective mass inferred from the resistivity coefficient, which both imply new `dimensional tuning' towards a quantum critical point.
- Publication:
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APS March Meeting Abstracts
- Pub Date:
- March 2008
- Bibcode:
- 2008APS..MARH27011S