Single Crystal Growth and Pressure Effect on Superconductivity of FeSe1-xSx.
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| Title: | Single Crystal Growth and Pressure Effect on Superconductivity of FeSe1-xSx. |
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| Authors: | Miyoshi, Kiyotaka1,2 (AUTHOR) miyoshi@riko.shimane-u.ac.jp, Yamamoto, Yumi1 (AUTHOR), Nakatani, Takanobu1 (AUTHOR), Izuhara, Daichi1 (AUTHOR), Matsushima, Ikumi1 (AUTHOR) |
| Source: | Journal of Low Temperature Physics. Apr2026, Vol. 222 Issue 2, p1-8. 8p. |
| Abstract: | FeSe 1 - x S x is known to have a characteristic phase diagram where superconducting (SC), nematic and antiferromagnetic (AFM) phases coexist or compete to each other. We report single crystal growth of FeSe 1 - x S x and pressure effect on superconductivity for the specimens with x=0.02 through the measurements of DC magnetization (M) and electrical resistivity (ρ) as a function of temperature (T). Single crystals of FeSe 1 - x S x ( x ≤ 0.17 ) with a maximum dimension of 1.5 × 1.5 mm 2 were successfully obtained by a chemical vapor transport method. The M(T) and ρ (T) measurements have revealed that a nematic phase is suppressed and disappears at ∼ 1.5 GPa, where superconducting transition temperature T c shows a local minimum, while AFM phases appear separately inside and outside the nematic phase. A crossover of superconductivity near the end point of AFM phase reported in our previous study for x ≥ 0.04 was not observed for x=0.02. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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