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Electronic structure of heavy fermion system CePt2In7 from angle-resolved photoemission spectroscopy.
- Source :
- Chinese Physics B; Jun2017, Vol. 26 Issue 7, p1-1, 1p
- Publication Year :
- 2017
-
Abstract
- We have carried out high-resolution angle-resolved photoemission measurements on the Ce-based heavy fermion compound CePt<subscript>2</subscript>In<subscript>7</subscript> that exhibits stronger two-dimensional character than the prototypical heavy fermion system CeCoIn<subscript>5</subscript>. Multiple Fermi surface sheets and a complex band structure are clearly resolved. We have also performed detailed band structure calculations on CePt<subscript>2</subscript>In<subscript>7</subscript>. The good agreement found between our measurements and the calculations suggests that the band renormalization effect is rather weak in CePt<subscript>2</subscript>In<subscript>7</subscript>. A comparison of the common features of the electronic structure of CePt<subscript>2</subscript>In<subscript>7</subscript> and CeCoIn<subscript>5</subscript> indicates that CeCoIn<subscript>5</subscript> shows a much stronger band renormalization effect than CePt<subscript>2</subscript>In<subscript>7</subscript>. These results provide new information for understanding the heavy fermion behaviors and unconventional superconductivity in Ce-based heavy fermion systems. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16741056
- Volume :
- 26
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Chinese Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 123927664
- Full Text :
- https://doi.org/10.1088/1674-1056/26/7/077401