Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe_{3}
The integrated Berry curvature is a geometric property that has dramatic implications for material properties. This study investigates the integrated Berry curvature and other contributions to the anomalous Hall effect in CrGeTe_{3} as a function of pressure. The anomalous Hall effect is absent in t...
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-02-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.013127 |
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| author | Gili Scharf Daniel Guterding Bar Hen Paul M. Sarte Brenden R. Ortiz Gregory Kh. Rozenberg Tobias Holder Stephen D. Wilson Harald O. Jeschke Alon Ron |
| author_facet | Gili Scharf Daniel Guterding Bar Hen Paul M. Sarte Brenden R. Ortiz Gregory Kh. Rozenberg Tobias Holder Stephen D. Wilson Harald O. Jeschke Alon Ron |
| author_sort | Gili Scharf |
| collection | DOAJ |
| description | The integrated Berry curvature is a geometric property that has dramatic implications for material properties. This study investigates the integrated Berry curvature and other contributions to the anomalous Hall effect in CrGeTe_{3} as a function of pressure. The anomalous Hall effect is absent in the insulating phase of CrGeTe_{3} and evolves with pressure in a domelike fashion as pressure is applied. The dome's edges are characterized by Fermi surface deformations, manifested as mixed electron and hole transport. We corroborate the presence of bipolar transport using ab initio calculations, which also predict a nonmonotonic behavior of the Berry curvature as a function of pressure. Quantitative discrepancies between our calculations and experimental results indicate that additional scattering mechanisms, which are also strongly tuned by pressure, contribute to the anomalous Hall effect in CrGeTe_{3}. |
| format | Article |
| id | doaj-art-f37e15d3c9b647dfac369b240726e78f |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-f37e15d3c9b647dfac369b240726e78f2025-02-03T15:13:32ZengAmerican Physical SocietyPhysical Review Research2643-15642025-02-017101312710.1103/PhysRevResearch.7.013127Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe_{3}Gili ScharfDaniel GuterdingBar HenPaul M. SarteBrenden R. OrtizGregory Kh. RozenbergTobias HolderStephen D. WilsonHarald O. JeschkeAlon RonThe integrated Berry curvature is a geometric property that has dramatic implications for material properties. This study investigates the integrated Berry curvature and other contributions to the anomalous Hall effect in CrGeTe_{3} as a function of pressure. The anomalous Hall effect is absent in the insulating phase of CrGeTe_{3} and evolves with pressure in a domelike fashion as pressure is applied. The dome's edges are characterized by Fermi surface deformations, manifested as mixed electron and hole transport. We corroborate the presence of bipolar transport using ab initio calculations, which also predict a nonmonotonic behavior of the Berry curvature as a function of pressure. Quantitative discrepancies between our calculations and experimental results indicate that additional scattering mechanisms, which are also strongly tuned by pressure, contribute to the anomalous Hall effect in CrGeTe_{3}.http://doi.org/10.1103/PhysRevResearch.7.013127 |
| spellingShingle | Gili Scharf Daniel Guterding Bar Hen Paul M. Sarte Brenden R. Ortiz Gregory Kh. Rozenberg Tobias Holder Stephen D. Wilson Harald O. Jeschke Alon Ron Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe_{3} Physical Review Research |
| title | Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe_{3} |
| title_full | Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe_{3} |
| title_fullStr | Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe_{3} |
| title_full_unstemmed | Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe_{3} |
| title_short | Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe_{3} |
| title_sort | pressure tuning of intrinsic and extrinsic sources to the anomalous hall effect in crgete 3 |
| url | http://doi.org/10.1103/PhysRevResearch.7.013127 |
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