Direct observation of heavy quasiparticles in the Kondo lattice CeIn3
| Autor: | Zhang, Y., Feng, W., Lou, X., Yu, T. L., Zhu, X. G., Tan, S. Y., Yuan, B. K., Liu, Y., Lu, H. Y., Xie, D. H., Liu, Q., Zhang, W., Luo, X. B., Huang, Y. B., Luo, L. Z., Zhang, Z. J., Lai, X. C., Chen, Q. Y. |
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| Rok vydání: | 2018 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.97.045128 |
| Popis: | The electronic structure of the Kondo lattice CeIn3 has been studied by on-resonant angle-resolved photoemission spectroscopy and scanning tunneling microscopy/spectroscopy. A weakly dispersive quasiparticle band has been observed directly with an energy dispersion of 4 meV by photoemission, implying the existence of weak hybridization between the f electrons and conduction electrons. The hybridization is further confirmed by the formation of the hybridization gap revealed by temperature-dependent scanning tunneling spectroscopy. Moreover, we find the hybridization strength in CeIn3 is much weaker than that in the more two-dimensional compounds CeCoIn5 and CeIrIn5. Our results may be essential for the complete microscopic understanding of this important compound and the related heavy-fermion systems. Comment: 17pages, 5 figures |
| Databáze: | arXiv |
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