Infinite critical boson non-Fermi liquid on heterostructure interfaces
Abstract We study the emergence of non-Fermi liquid on heterostructure interfaces where there exists an infinite number of critical boson modes accounting for the magnetic fluctuations in two spatial dimensions. The interfacial Dzyaloshinskii-Moriya interaction naturally arises in magnetic interacti...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Springer
2023-11-01
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| Series: | Quantum Frontiers |
| Online Access: | https://doi.org/10.1007/s44214-023-00040-2 |
| _version_ | 1797557424344793088 |
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| author | Xiao-Tian Zhang Gang Chen |
| author_facet | Xiao-Tian Zhang Gang Chen |
| author_sort | Xiao-Tian Zhang |
| collection | DOAJ |
| description | Abstract We study the emergence of non-Fermi liquid on heterostructure interfaces where there exists an infinite number of critical boson modes accounting for the magnetic fluctuations in two spatial dimensions. The interfacial Dzyaloshinskii-Moriya interaction naturally arises in magnetic interactions due to the absence of inversion symmetry, resulting in a degenerate contour for the low-energy bosonic modes in the momentum space which simultaneously becomes critical near the magnetic phase transition. The itinerant electrons are scattered by the critical boson contour via the Yukawa coupling. When the boson contour is much smaller than the Fermi surface, it is shown that, there exists a regime with a dynamic critical exponent z = 3 ${z=3}$ while the boson contour still controls the low-energy magnetic fluctuations. Using a self-consistent renormalization calculation for this regime, we uncover a prominent non-Fermi liquid behavior in the resistivity with a characteristic temperature scaling power. These findings open up new avenues for understanding boson-fermion interactions and the novel fermionic quantum criticality. |
| first_indexed | 2024-03-10T17:16:51Z |
| format | Article |
| id | doaj.art-097c293e571b4f9f85841787088dae3c |
| institution | Directory Open Access Journal |
| issn | 2731-6106 |
| language | English |
| last_indexed | 2024-03-10T17:16:51Z |
| publishDate | 2023-11-01 |
| publisher | Springer |
| record_format | Article |
| series | Quantum Frontiers |
| spelling | doaj.art-097c293e571b4f9f85841787088dae3c2023-11-20T10:28:21ZengSpringerQuantum Frontiers2731-61062023-11-012111810.1007/s44214-023-00040-2Infinite critical boson non-Fermi liquid on heterostructure interfacesXiao-Tian Zhang0Gang Chen1Kavli Institute for Theoretical Sciences, University of Chinese Academy of SciencesInternational Center for Quantum Materials, School of Physics, Peking UniversityAbstract We study the emergence of non-Fermi liquid on heterostructure interfaces where there exists an infinite number of critical boson modes accounting for the magnetic fluctuations in two spatial dimensions. The interfacial Dzyaloshinskii-Moriya interaction naturally arises in magnetic interactions due to the absence of inversion symmetry, resulting in a degenerate contour for the low-energy bosonic modes in the momentum space which simultaneously becomes critical near the magnetic phase transition. The itinerant electrons are scattered by the critical boson contour via the Yukawa coupling. When the boson contour is much smaller than the Fermi surface, it is shown that, there exists a regime with a dynamic critical exponent z = 3 ${z=3}$ while the boson contour still controls the low-energy magnetic fluctuations. Using a self-consistent renormalization calculation for this regime, we uncover a prominent non-Fermi liquid behavior in the resistivity with a characteristic temperature scaling power. These findings open up new avenues for understanding boson-fermion interactions and the novel fermionic quantum criticality.https://doi.org/10.1007/s44214-023-00040-2 |
| spellingShingle | Xiao-Tian Zhang Gang Chen Infinite critical boson non-Fermi liquid on heterostructure interfaces Quantum Frontiers |
| title | Infinite critical boson non-Fermi liquid on heterostructure interfaces |
| title_full | Infinite critical boson non-Fermi liquid on heterostructure interfaces |
| title_fullStr | Infinite critical boson non-Fermi liquid on heterostructure interfaces |
| title_full_unstemmed | Infinite critical boson non-Fermi liquid on heterostructure interfaces |
| title_short | Infinite critical boson non-Fermi liquid on heterostructure interfaces |
| title_sort | infinite critical boson non fermi liquid on heterostructure interfaces |
| url | https://doi.org/10.1007/s44214-023-00040-2 |
| work_keys_str_mv | AT xiaotianzhang infinitecriticalbosonnonfermiliquidonheterostructureinterfaces AT gangchen infinitecriticalbosonnonfermiliquidonheterostructureinterfaces |