Magnetic Metastability driven Anomalous Hall Effect in Fe$_{x}$TaS$_2$
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
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2025
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| _version_ | 1866916644056465408 |
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| author | Numan, Mohamad Chowdhury, Prasanta Adhikary, Sanat Giri, Saurav Sannigrahi, Jhuma Gutmann, Matthias Chatterjee, Souvik Majumdar, Subham |
| author_facet | Numan, Mohamad Chowdhury, Prasanta Adhikary, Sanat Giri, Saurav Sannigrahi, Jhuma Gutmann, Matthias Chatterjee, Souvik Majumdar, Subham |
| contents | We report here the observation of robust thermoremanent magnetization (TRM) in Fe-intercalated TaS$_2$ single crystal Fe$_{x}$TaS$_2$, which develops upon cooling under a moderate magnetic field of 500 Oe or higher. The thermoremanence is found to exist in a zero magnetic field up to a temperature as high as 160 K, which is well above the ferromagnetic Curie point ($T_C =$ 90 K) of the sample. The TRM in this compound can be traced back to the strong Ising character and the quasi-two-dimensional nature of the spins. The analysis of the magnetization data indicates the presence of short-range magnetic correlation in the form of a Griffiths singularity above $T_C$ to a temperature as high as 2$T_C$. The TRM is further manifested in the form of a large anomalous Hall effect (AHE) in zero magnetic field. In contrast to TRM, which exists well above $T_C$, the thermoremanent Hall effect vanishes as soon as the sample is heated above $T_C$. This may be an indication that a long-range ordered phase is essential for the emergence of AHE. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_17453 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetic Metastability driven Anomalous Hall Effect in Fe$_{x}$TaS$_2$ Numan, Mohamad Chowdhury, Prasanta Adhikary, Sanat Giri, Saurav Sannigrahi, Jhuma Gutmann, Matthias Chatterjee, Souvik Majumdar, Subham Strongly Correlated Electrons We report here the observation of robust thermoremanent magnetization (TRM) in Fe-intercalated TaS$_2$ single crystal Fe$_{x}$TaS$_2$, which develops upon cooling under a moderate magnetic field of 500 Oe or higher. The thermoremanence is found to exist in a zero magnetic field up to a temperature as high as 160 K, which is well above the ferromagnetic Curie point ($T_C =$ 90 K) of the sample. The TRM in this compound can be traced back to the strong Ising character and the quasi-two-dimensional nature of the spins. The analysis of the magnetization data indicates the presence of short-range magnetic correlation in the form of a Griffiths singularity above $T_C$ to a temperature as high as 2$T_C$. The TRM is further manifested in the form of a large anomalous Hall effect (AHE) in zero magnetic field. In contrast to TRM, which exists well above $T_C$, the thermoremanent Hall effect vanishes as soon as the sample is heated above $T_C$. This may be an indication that a long-range ordered phase is essential for the emergence of AHE. |
| title | Magnetic Metastability driven Anomalous Hall Effect in Fe$_{x}$TaS$_2$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2501.17453 |