In-plane and interlayer magnetoresistance in FeSe
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arXiv
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| Format: | Preprint |
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2025
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| author | Terashima, Taichi Uji, Shinya Ikeda, Hiroaki Matsuda, Yuji Shibauchi, Takasada Kasahara, Shigeru |
| author_facet | Terashima, Taichi Uji, Shinya Ikeda, Hiroaki Matsuda, Yuji Shibauchi, Takasada Kasahara, Shigeru |
| contents | We report measurements of the in-plane and interlayer magnetoresistances of FeSe. The in-plane magnetoresistance $Δρ_{ab}/ρ_{ab}(0)$ for $B \parallel c$ is positive below $T_s$ and increases with decreasing temperature, exceeding 2.5 at $T$ = 10 K and $B$ = 14 T. The field-direction dependence indicates that the in-plane magnetoresistance is basically determined by the $c$-axis component of the magnetic field. The interlayer magnetoresistance $Δρ_{c}/ρ_{c}(0)$ is negative below $T_s$ but turns positive below $\sim$18 K, which is probably due to the contamination by the large in-plane magnetoresistance. The field-direction dependence of the interlayer magnetoresistance can approximately be described by a standard formula for quasi-two-dimensional electron systems except near $B \parallel ab$. The experimental magnetoresistance near $B \parallel ab$ is larger than the formula, which can be attributed to the so-called interlayer coherence peak. The large width of the peak indicates the correspondingly large interlayer transfer energy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_23255 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | In-plane and interlayer magnetoresistance in FeSe Terashima, Taichi Uji, Shinya Ikeda, Hiroaki Matsuda, Yuji Shibauchi, Takasada Kasahara, Shigeru Superconductivity Strongly Correlated Electrons We report measurements of the in-plane and interlayer magnetoresistances of FeSe. The in-plane magnetoresistance $Δρ_{ab}/ρ_{ab}(0)$ for $B \parallel c$ is positive below $T_s$ and increases with decreasing temperature, exceeding 2.5 at $T$ = 10 K and $B$ = 14 T. The field-direction dependence indicates that the in-plane magnetoresistance is basically determined by the $c$-axis component of the magnetic field. The interlayer magnetoresistance $Δρ_{c}/ρ_{c}(0)$ is negative below $T_s$ but turns positive below $\sim$18 K, which is probably due to the contamination by the large in-plane magnetoresistance. The field-direction dependence of the interlayer magnetoresistance can approximately be described by a standard formula for quasi-two-dimensional electron systems except near $B \parallel ab$. The experimental magnetoresistance near $B \parallel ab$ is larger than the formula, which can be attributed to the so-called interlayer coherence peak. The large width of the peak indicates the correspondingly large interlayer transfer energy. |
| title | In-plane and interlayer magnetoresistance in FeSe |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2507.23255 |