Journal
PHYSICAL REVIEW LETTERS
Volume 112, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.036403
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Funding
- MRSEC program of the National Science Foundation [DMR11-20901]
- Department of Energy [FG02-ER45118, DE-FG02-07ER46431]
- National Science Foundation [DMR11-24696, DMR09-06175]
- REU program at LRSM, University of Pennsylvania
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1124696] Funding Source: National Science Foundation
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We report on a Dirac-like Fermi surface in three-dimensional bulk materials in a distorted spinel structure on the basis of density functional theory as well as tight-binding theory. The four examples we provide in this Letter are BiZnSiO4, BiCaSiO4, BiAlInO4, and BiMgSiO4. A necessary characteristic of these structures is that they contain a Bi lattice which forms a hierarchy of chainlike substructures, with consequences for both fundamental understanding and materials design.
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