期刊
PHYSICAL REVIEW LETTERS
卷 110, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.087004
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资金
- National Science Foundation [DMR-0847385, DGE-0707428]
- Materials Research Science and Engineering Centers (MRSEC) program [DMR-1120296]
- Research Corporation Cottrell Scholar Grant [20025]
- NSF IGERT [DGE-0654193]
- AFOSR [FA9550-10-1-0524]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [847385] Funding Source: National Science Foundation
We report high-resolution angle-resolved photoemission studies of epitaxial thin films of the correlated 4d transition metal oxide ferromagnet SrRuO3. The Fermi surface in the ferromagnetic state consists of well-defined Landau quasiparticles exhibiting strong coupling to low-energy bosonic modes which contributes to the large effective masses observed by transport and thermodynamic measurements. Upon warming the material through its Curie temperature, we observe a substantial decrease in quasiparticle coherence but negligible changes in the ferromagnetic exchange splitting, suggesting that local moments play an important role in the ferromagnetism in SrRuO3. DOI: 10.1103/PhysRevLett.110.087004
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