Thermoelectricity and electronic correlation enhancement in FeS by light Se doping
Само за регистроване кориснике
2022
Чланак у часопису (Објављена верзија)
,
© 2022 American Physical Society
Метаподаци
Приказ свих података о документуАпстракт
We report thermoelectric studies of FeS1-xSex (x=0,0.06) superconducting single crystals that feature high irreversibility fields and critical current density Jc comparable to materials with much higher superconducting critical temperatures (Tc's). The ratio of Tc to the Fermi temperature TF is very small, indicating weak electronic correlations. With a slight selenium substitution on sulfur site in FeS both Tc/TF and the effective mass m∗ rise considerably, implying increase in electronic correlation of the bulk conducting states. The first-principle calculations show rise of the density of states at the Fermi level in FeS0.94Se0.06 when compared to FeS, which is related not only to Fe but also to chalcogen-derived electronic states.
Извор:
Physical Review B, 2022, 105, 4, 045133-Финансирање / пројекти:
- U.S. Department of Energy (DOE) [DE-SC0012704]
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
Напомена:
- Peer-reviewed manuscript: https://arxiv.org/pdf/2202.13435.pdf
DOI: 10.1103/PhysRevB.105.045133
ISSN: 2469-9950
WoS: 000747450000002
Scopus: 2-s2.0-85124673171
Институција/група
VinčaTY - JOUR AU - Liu, Yu AU - Wang, Aifeng AU - Ivanovski, Valentin N. AU - Du, Qianheng AU - Koteski, Vasil J. AU - Petrović, Čedomir PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10174 AB - We report thermoelectric studies of FeS1-xSex (x=0,0.06) superconducting single crystals that feature high irreversibility fields and critical current density Jc comparable to materials with much higher superconducting critical temperatures (Tc's). The ratio of Tc to the Fermi temperature TF is very small, indicating weak electronic correlations. With a slight selenium substitution on sulfur site in FeS both Tc/TF and the effective mass m∗ rise considerably, implying increase in electronic correlation of the bulk conducting states. The first-principle calculations show rise of the density of states at the Fermi level in FeS0.94Se0.06 when compared to FeS, which is related not only to Fe but also to chalcogen-derived electronic states. T2 - Physical Review B T1 - Thermoelectricity and electronic correlation enhancement in FeS by light Se doping VL - 105 IS - 4 SP - 045133 DO - 10.1103/PhysRevB.105.045133 ER -
@article{ author = "Liu, Yu and Wang, Aifeng and Ivanovski, Valentin N. and Du, Qianheng and Koteski, Vasil J. and Petrović, Čedomir", year = "2022", abstract = "We report thermoelectric studies of FeS1-xSex (x=0,0.06) superconducting single crystals that feature high irreversibility fields and critical current density Jc comparable to materials with much higher superconducting critical temperatures (Tc's). The ratio of Tc to the Fermi temperature TF is very small, indicating weak electronic correlations. With a slight selenium substitution on sulfur site in FeS both Tc/TF and the effective mass m∗ rise considerably, implying increase in electronic correlation of the bulk conducting states. The first-principle calculations show rise of the density of states at the Fermi level in FeS0.94Se0.06 when compared to FeS, which is related not only to Fe but also to chalcogen-derived electronic states.", journal = "Physical Review B", title = "Thermoelectricity and electronic correlation enhancement in FeS by light Se doping", volume = "105", number = "4", pages = "045133", doi = "10.1103/PhysRevB.105.045133" }
Liu, Y., Wang, A., Ivanovski, V. N., Du, Q., Koteski, V. J.,& Petrović, Č.. (2022). Thermoelectricity and electronic correlation enhancement in FeS by light Se doping. in Physical Review B, 105(4), 045133. https://doi.org/10.1103/PhysRevB.105.045133
Liu Y, Wang A, Ivanovski VN, Du Q, Koteski VJ, Petrović Č. Thermoelectricity and electronic correlation enhancement in FeS by light Se doping. in Physical Review B. 2022;105(4):045133. doi:10.1103/PhysRevB.105.045133 .
Liu, Yu, Wang, Aifeng, Ivanovski, Valentin N., Du, Qianheng, Koteski, Vasil J., Petrović, Čedomir, "Thermoelectricity and electronic correlation enhancement in FeS by light Se doping" in Physical Review B, 105, no. 4 (2022):045133, https://doi.org/10.1103/PhysRevB.105.045133 . .