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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.14722 |
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| _version_ | 1866912130367750144 |
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| author | Torres, Kierstin Park, Joon Young Posey, Victoria A. Ziebel, Michael E. Casaday, Claire E. Anderton, Kevin J. Cui, Dongtao Tang, Benjamin Taniguchi, Takashi Watanabe, Kenji Pasupathy, Abhay N. Roy, Xavier Kim, Philip |
| author_facet | Torres, Kierstin Park, Joon Young Posey, Victoria A. Ziebel, Michael E. Casaday, Claire E. Anderton, Kevin J. Cui, Dongtao Tang, Benjamin Taniguchi, Takashi Watanabe, Kenji Pasupathy, Abhay N. Roy, Xavier Kim, Philip |
| contents | The recent discovery of the van der Waals (vdW) layered heavy fermion antiferromagnetic metal CeSiI offers promising potential for achieving accessible quantum criticality in the two-dimensional (2D) limit. CeSiI exhibits both heavy fermion behavior and antiferromagnetic (AFM) ordering, while the exact magnetic structure and phase diagram have yet to be determined. Here, we investigate magnetic properties of atomically thin CeSiI devices with thicknesses ranging from 2-15 vdW layers. The thickness-dependent magnetotransport measurement reveals an intrinsic 2D nature of heavy fermion behavior and antiferromagnetism. Notably, we also find an isotropic, time-dependent hysteresis in both magnetoresistance and Hall resistance, showing glassy relaxation dynamics. This glassy behavior in magnetic structures may suggest the presence of spin glass phases or multipolar ordering, further establishing CeSiI as an intriguing material system for investigating the interplay between magnetic orders and the Kondo effect. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_14722 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Glassy Relaxation Dynamics in the Two-Dimensional Heavy Fermion Antiferromagnet CeSiI Torres, Kierstin Park, Joon Young Posey, Victoria A. Ziebel, Michael E. Casaday, Claire E. Anderton, Kevin J. Cui, Dongtao Tang, Benjamin Taniguchi, Takashi Watanabe, Kenji Pasupathy, Abhay N. Roy, Xavier Kim, Philip Strongly Correlated Electrons The recent discovery of the van der Waals (vdW) layered heavy fermion antiferromagnetic metal CeSiI offers promising potential for achieving accessible quantum criticality in the two-dimensional (2D) limit. CeSiI exhibits both heavy fermion behavior and antiferromagnetic (AFM) ordering, while the exact magnetic structure and phase diagram have yet to be determined. Here, we investigate magnetic properties of atomically thin CeSiI devices with thicknesses ranging from 2-15 vdW layers. The thickness-dependent magnetotransport measurement reveals an intrinsic 2D nature of heavy fermion behavior and antiferromagnetism. Notably, we also find an isotropic, time-dependent hysteresis in both magnetoresistance and Hall resistance, showing glassy relaxation dynamics. This glassy behavior in magnetic structures may suggest the presence of spin glass phases or multipolar ordering, further establishing CeSiI as an intriguing material system for investigating the interplay between magnetic orders and the Kondo effect. |
| title | Glassy Relaxation Dynamics in the Two-Dimensional Heavy Fermion Antiferromagnet CeSiI |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2411.14722 |