Universal Knight shift anomaly in the periodic Anderson model
Abstract
Here, we report a Determinant Quantum Monte Carlo investigation which quantifies the behavior of the susceptibility and the entropy in the framework of the periodic Anderson model (PAM), focussing on the evolution with different degree of conduction electron (c) -local moment (f) hybridization. These results capture the behavior observed in several experiments, including the universal behavior of the NMR Knight shift anomaly below the crossover temperature, T*. We find that T* is a measure of the onset of c-f correlations and grows with increasing hybridization. Our results suggest that the NMR Knight shift and spin-lattice relaxation rate measurements in non-Fermi liquid materials are strongly influenced by temperature-dependent hybridization processes. Furthermore, our results provide a microscopic basis for the phenomenological two-fluid model of Kondo lattice behavior, and its evolution with pressure and temperature.
- Authors:
-
- Univ. of California, Davis, CA (United States). Physics Dept. and Dept. of Mathematics
- Univ. of California, Davis, CA (United States). Physics Dept.
- Publication Date:
- Research Org.:
- Univ. of California, Davis, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1344109
- Alternate Identifier(s):
- OSTI ID: 1179884
- Grant/Contract Number:
- NA0001842; NA0001842-0
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 90; Journal Issue: 24; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Jiang, M., Curro, N. J., and Scalettar, R. T. Universal Knight shift anomaly in the periodic Anderson model. United States: N. p., 2014.
Web. doi:10.1103/PhysRevB.90.241109.
Jiang, M., Curro, N. J., & Scalettar, R. T. Universal Knight shift anomaly in the periodic Anderson model. United States. https://doi.org/10.1103/PhysRevB.90.241109
Jiang, M., Curro, N. J., and Scalettar, R. T. 2014.
"Universal Knight shift anomaly in the periodic Anderson model". United States. https://doi.org/10.1103/PhysRevB.90.241109. https://www.osti.gov/servlets/purl/1344109.
@article{osti_1344109,
title = {Universal Knight shift anomaly in the periodic Anderson model},
author = {Jiang, M. and Curro, N. J. and Scalettar, R. T.},
abstractNote = {Here, we report a Determinant Quantum Monte Carlo investigation which quantifies the behavior of the susceptibility and the entropy in the framework of the periodic Anderson model (PAM), focussing on the evolution with different degree of conduction electron (c) -local moment (f) hybridization. These results capture the behavior observed in several experiments, including the universal behavior of the NMR Knight shift anomaly below the crossover temperature, T*. We find that T* is a measure of the onset of c-f correlations and grows with increasing hybridization. Our results suggest that the NMR Knight shift and spin-lattice relaxation rate measurements in non-Fermi liquid materials are strongly influenced by temperature-dependent hybridization processes. Furthermore, our results provide a microscopic basis for the phenomenological two-fluid model of Kondo lattice behavior, and its evolution with pressure and temperature.},
doi = {10.1103/PhysRevB.90.241109},
url = {https://www.osti.gov/biblio/1344109},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 24,
volume = 90,
place = {United States},
year = {Fri Dec 12 00:00:00 EST 2014},
month = {Fri Dec 12 00:00:00 EST 2014}
}
Web of Science
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