Dynamics of a Magnetic Polaron in an Antiferromagnet
The t-J model remains an indispensable construct in high-temperature superconductivity research, bridging the gap between charge dynamics and spin interactions within antiferromagnetic matrices. This study employs the multiple Davydov Ansatz method with thermo-field dynamics to dissect the zero-temp...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/17/2/469 |
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| author | Kaijun Shen Maxim F. Gelin Kewei Sun Yang Zhao |
| author_facet | Kaijun Shen Maxim F. Gelin Kewei Sun Yang Zhao |
| author_sort | Kaijun Shen |
| collection | DOAJ |
| description | The t-J model remains an indispensable construct in high-temperature superconductivity research, bridging the gap between charge dynamics and spin interactions within antiferromagnetic matrices. This study employs the multiple Davydov Ansatz method with thermo-field dynamics to dissect the zero-temperature and finite-temperature behaviors. We uncover the nuanced dependence of hole and spin deviation dynamics on the spin–spin coupling parameter J, revealing a thermally-activated landscape where hole mobilities and spin deviations exhibit a distinct temperature-dependent relationship. This numerically accurate thermal perspective augments our understanding of charge and spin dynamics in an antiferromagnet. |
| first_indexed | 2024-03-08T10:42:23Z |
| format | Article |
| id | doaj.art-8bd70613093d4a7b95e57820325a5621 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-08T10:42:23Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-8bd70613093d4a7b95e57820325a56212024-01-26T17:29:56ZengMDPI AGMaterials1996-19442024-01-0117246910.3390/ma17020469Dynamics of a Magnetic Polaron in an AntiferromagnetKaijun Shen0Maxim F. Gelin1Kewei Sun2Yang Zhao3School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, SingaporeSchool of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, SingaporeSchool of Science, Hangzhou Dianzi University, Hangzhou 310018, ChinaSchool of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, SingaporeThe t-J model remains an indispensable construct in high-temperature superconductivity research, bridging the gap between charge dynamics and spin interactions within antiferromagnetic matrices. This study employs the multiple Davydov Ansatz method with thermo-field dynamics to dissect the zero-temperature and finite-temperature behaviors. We uncover the nuanced dependence of hole and spin deviation dynamics on the spin–spin coupling parameter J, revealing a thermally-activated landscape where hole mobilities and spin deviations exhibit a distinct temperature-dependent relationship. This numerically accurate thermal perspective augments our understanding of charge and spin dynamics in an antiferromagnet.https://www.mdpi.com/1996-1944/17/2/469variational methodcoherent statesDavydov Ansatzt-J modelhole dynamicsmagnetic polarons |
| spellingShingle | Kaijun Shen Maxim F. Gelin Kewei Sun Yang Zhao Dynamics of a Magnetic Polaron in an Antiferromagnet Materials variational method coherent states Davydov Ansatz t-J model hole dynamics magnetic polarons |
| title | Dynamics of a Magnetic Polaron in an Antiferromagnet |
| title_full | Dynamics of a Magnetic Polaron in an Antiferromagnet |
| title_fullStr | Dynamics of a Magnetic Polaron in an Antiferromagnet |
| title_full_unstemmed | Dynamics of a Magnetic Polaron in an Antiferromagnet |
| title_short | Dynamics of a Magnetic Polaron in an Antiferromagnet |
| title_sort | dynamics of a magnetic polaron in an antiferromagnet |
| topic | variational method coherent states Davydov Ansatz t-J model hole dynamics magnetic polarons |
| url | https://www.mdpi.com/1996-1944/17/2/469 |
| work_keys_str_mv | AT kaijunshen dynamicsofamagneticpolaroninanantiferromagnet AT maximfgelin dynamicsofamagneticpolaroninanantiferromagnet AT keweisun dynamicsofamagneticpolaroninanantiferromagnet AT yangzhao dynamicsofamagneticpolaroninanantiferromagnet |