Thermoelectric power as a probe of density of states in correlated actinide materials: The case of PuCoGa5 superconductor
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- European Commission, Karlsruhe (Germany). Joint Research Centre, Inst. for Transuranium Elements
- Temple Univ., Philadelphia, PA (United States). Dept. of Physics
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
We present measurements of the thermoelectric power of the plutonium-based unconventional superconductor PuCoGa5. The data is interpreted within a phenomenological model for the quasiparticle density of states of intermediate valence systems and the results are compared with results obtained from photoemission spectroscopy. The results are consistent with intermediate valence nature of 5f-electrons, furthermore, we propose that measurements of the Seebeck coefficient can be used as a probe of density of states in this material, thereby providing a link between transport measurements and photoemission in strongly correlated materials. Here, we discuss these results and their implications for the electronic structure determination of other strongly correlated systems, especially nuclear materials.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC07-05ID14517; FG02-01ER45872; AC52-06NA25396
- OSTI ID:
- 1369437
- Alternate ID(s):
- OSTI ID: 1331407; OSTI ID: 1415374
- Report Number(s):
- INL/JOU-16-39090; LA-UR-17-22208; PRBMDO; TRN: US1702660
- Journal Information:
- Physical Review B, Vol. 94, Issue 19; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Crystal electric field contribution to the thermoelectric power of the CeCoAl 4 antiferromagnetic
|
journal | December 2018 |
Similar Records
Extended nuclear quadrupole resonance study of the heavy-fermion superconductor
Orbital-Selective Kondo Entanglement and Antiferromagnetic Order in USb2