Rise and fall of non-Fermi liquid fixed points in multipolar Kondo problems
Recently, it was shown that the multipolar Kondo problem, wherein a quantum impurity carrying higher-rank multipolar moments interacts with conduction electrons, leads to novel non-Fermi liquid states. Because of the multipolar character of the local moments, the form of the interaction with conduct...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2021-02-01
|
| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.3.013189 |
| _version_ | 1827285840260235264 |
|---|---|
| author | Daniel J. Schultz Adarsh S. Patri Yong Baek Kim |
| author_facet | Daniel J. Schultz Adarsh S. Patri Yong Baek Kim |
| author_sort | Daniel J. Schultz |
| collection | DOAJ |
| description | Recently, it was shown that the multipolar Kondo problem, wherein a quantum impurity carrying higher-rank multipolar moments interacts with conduction electrons, leads to novel non-Fermi liquid states. Because of the multipolar character of the local moments, the form of the interaction with conduction electrons is strongly dependent on the orbital symmetry of the conduction electrons via crystalline symmetry constraints. This suggests that there may exist a variety of different non-Fermi liquid states in generic multipolar Kondo problems depending on the character of conduction electrons. In this work, using renormalization group analysis, we investigate a model where the multipolar local moment is coupled to conduction electrons with two different orbital-symmetry components, namely, p-wave and f-wave symmetries. When each orbital-symmetry component is present alone, non-Fermi liquid states with exactly the same thermodynamic singularities appear. When both orbital-symmetry components are allowed, however, a completely different non-Fermi liquid state arises via the quantum fluctuations in the mixed scattering channels. This remarkable result suggests that the multipolar Kondo problem presents unique opportunities for the discovery of unexpected non-Fermi liquid states. |
| first_indexed | 2024-04-24T10:20:19Z |
| format | Article |
| id | doaj.art-3e84e4b68ae54f40bd3d482ffef7acd1 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:20:19Z |
| publishDate | 2021-02-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-3e84e4b68ae54f40bd3d482ffef7acd12024-04-12T17:07:51ZengAmerican Physical SocietyPhysical Review Research2643-15642021-02-013101318910.1103/PhysRevResearch.3.013189Rise and fall of non-Fermi liquid fixed points in multipolar Kondo problemsDaniel J. SchultzAdarsh S. PatriYong Baek KimRecently, it was shown that the multipolar Kondo problem, wherein a quantum impurity carrying higher-rank multipolar moments interacts with conduction electrons, leads to novel non-Fermi liquid states. Because of the multipolar character of the local moments, the form of the interaction with conduction electrons is strongly dependent on the orbital symmetry of the conduction electrons via crystalline symmetry constraints. This suggests that there may exist a variety of different non-Fermi liquid states in generic multipolar Kondo problems depending on the character of conduction electrons. In this work, using renormalization group analysis, we investigate a model where the multipolar local moment is coupled to conduction electrons with two different orbital-symmetry components, namely, p-wave and f-wave symmetries. When each orbital-symmetry component is present alone, non-Fermi liquid states with exactly the same thermodynamic singularities appear. When both orbital-symmetry components are allowed, however, a completely different non-Fermi liquid state arises via the quantum fluctuations in the mixed scattering channels. This remarkable result suggests that the multipolar Kondo problem presents unique opportunities for the discovery of unexpected non-Fermi liquid states.http://doi.org/10.1103/PhysRevResearch.3.013189 |
| spellingShingle | Daniel J. Schultz Adarsh S. Patri Yong Baek Kim Rise and fall of non-Fermi liquid fixed points in multipolar Kondo problems Physical Review Research |
| title | Rise and fall of non-Fermi liquid fixed points in multipolar Kondo problems |
| title_full | Rise and fall of non-Fermi liquid fixed points in multipolar Kondo problems |
| title_fullStr | Rise and fall of non-Fermi liquid fixed points in multipolar Kondo problems |
| title_full_unstemmed | Rise and fall of non-Fermi liquid fixed points in multipolar Kondo problems |
| title_short | Rise and fall of non-Fermi liquid fixed points in multipolar Kondo problems |
| title_sort | rise and fall of non fermi liquid fixed points in multipolar kondo problems |
| url | http://doi.org/10.1103/PhysRevResearch.3.013189 |
| work_keys_str_mv | AT danieljschultz riseandfallofnonfermiliquidfixedpointsinmultipolarkondoproblems AT adarshspatri riseandfallofnonfermiliquidfixedpointsinmultipolarkondoproblems AT yongbaekkim riseandfallofnonfermiliquidfixedpointsinmultipolarkondoproblems |