Strongly correlated ferromagnetism in NiTa<sub>4</sub>Se<sub>8</sub>
ORAL
Abstract
In this talk, I report on the growth and characterization of a novel weakly itinerant ferromagnet NiTa4Se8. Magnetometry measurements reveal the existence of complex magnetic order, potentially with multiple competing order parameters. Our transport and thermodynamic measurements, in combination with density functional theory (DFT) calculations, provide evidence for strong electronic correlations arising from a combination of spin fluctuations and flat-bands near the Fermi level. This material may serve as a useful platform for the study of weak itinerant magnetism, and the interplay of strong electronic correlations with complex magnetism more generally.
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Presenters
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Nikola Maksimovic
University of California, Berkeley
Authors
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Nikola Maksimovic
University of California, Berkeley
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James G Analytis
University of California, Berkeley, University of California Berkeley
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Fanghui Wan
University of California, Berkeley
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Alex Liebman-Pelaez
University of California Berkeley
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sarah a schwarz
University of California, Berkeley
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Sylvia K Lewin
University of California, Berkeley
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Daria Balatsky
Lawrence Berkeley National Laboratory
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Na Hyun Jo
Lawrence Berkeley National Lab
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Eli Rotenberg
Lawrence Berkeley National Laboratory
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Gabriel Perko-Engel
University of California, Berkeley