Critical current density and vortex pinning in tetragonal FeS1-xSex (x=0,0.06)
No Thumbnail
Authors
Wang, AifengWu, Lijun
Ivanovski, Valentin N.
Warren, J. B.
Tian, Jianjun
Zhu, Yimei
Petrović, Čedomir
Article (Published version)
Metadata
Show full item recordAbstract
We report critical current density (J(c)) in tetragonal FeS single crystals, similar to iron-based superconductors with much higher superconducting critical temperatures (T-c). The Jc is enhanced three times by 6% Se doping. We observe scaling of the normalized vortex pinning force as a function of reduced field at all temperatures. Vortex pinning in FeS and FeS0.94Se0.06 shows contribution of core-normal surfacelike pinning. Reduced temperature dependence of J(c) indicates that dominant interaction of vortex cores and pinning centers is via scattering of charge carriers with reduced mean free path (delta l), in contrast to KxFe2-ySe2 where spatial variations in T-c (delta T-c) prevails.
Source:
Physical Review B: Condensed Matter and Materials Physics, 2016, 94, 9Funding / projects:
- Investigation of intermetallics and semiconductors and possible application in renewable energy sources (RS-MESTD-Basic Research (BR or ON)-171001)
- Center for Emergent Superconductivity, an Energy Frontier Research Center - U.S. DOE, Office of Basic Energy Sciences, U.S. DOE [DEAC02-98CH10886], USDOE BES, Division of Materials Science and Engineering [DEAC02-98CH10886], Henan University
DOI: 10.1103/PhysRevB.94.094506
ISSN: 2469-9950; 2469-9969
WoS: 000382719100002
Scopus: 2-s2.0-84991010549
Collections
Institution/Community
VinčaTY - JOUR AU - Wang, Aifeng AU - Wu, Lijun AU - Ivanovski, Valentin N. AU - Warren, J. B. AU - Tian, Jianjun AU - Zhu, Yimei AU - Petrović, Čedomir PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1232 AB - We report critical current density (J(c)) in tetragonal FeS single crystals, similar to iron-based superconductors with much higher superconducting critical temperatures (T-c). The Jc is enhanced three times by 6% Se doping. We observe scaling of the normalized vortex pinning force as a function of reduced field at all temperatures. Vortex pinning in FeS and FeS0.94Se0.06 shows contribution of core-normal surfacelike pinning. Reduced temperature dependence of J(c) indicates that dominant interaction of vortex cores and pinning centers is via scattering of charge carriers with reduced mean free path (delta l), in contrast to KxFe2-ySe2 where spatial variations in T-c (delta T-c) prevails. T2 - Physical Review B: Condensed Matter and Materials Physics T1 - Critical current density and vortex pinning in tetragonal FeS1-xSex (x=0,0.06) VL - 94 IS - 9 DO - 10.1103/PhysRevB.94.094506 ER -
@article{ author = "Wang, Aifeng and Wu, Lijun and Ivanovski, Valentin N. and Warren, J. B. and Tian, Jianjun and Zhu, Yimei and Petrović, Čedomir", year = "2016", abstract = "We report critical current density (J(c)) in tetragonal FeS single crystals, similar to iron-based superconductors with much higher superconducting critical temperatures (T-c). The Jc is enhanced three times by 6% Se doping. We observe scaling of the normalized vortex pinning force as a function of reduced field at all temperatures. Vortex pinning in FeS and FeS0.94Se0.06 shows contribution of core-normal surfacelike pinning. Reduced temperature dependence of J(c) indicates that dominant interaction of vortex cores and pinning centers is via scattering of charge carriers with reduced mean free path (delta l), in contrast to KxFe2-ySe2 where spatial variations in T-c (delta T-c) prevails.", journal = "Physical Review B: Condensed Matter and Materials Physics", title = "Critical current density and vortex pinning in tetragonal FeS1-xSex (x=0,0.06)", volume = "94", number = "9", doi = "10.1103/PhysRevB.94.094506" }
Wang, A., Wu, L., Ivanovski, V. N., Warren, J. B., Tian, J., Zhu, Y.,& Petrović, Č.. (2016). Critical current density and vortex pinning in tetragonal FeS1-xSex (x=0,0.06). in Physical Review B: Condensed Matter and Materials Physics, 94(9). https://doi.org/10.1103/PhysRevB.94.094506
Wang A, Wu L, Ivanovski VN, Warren JB, Tian J, Zhu Y, Petrović Č. Critical current density and vortex pinning in tetragonal FeS1-xSex (x=0,0.06). in Physical Review B: Condensed Matter and Materials Physics. 2016;94(9). doi:10.1103/PhysRevB.94.094506 .
Wang, Aifeng, Wu, Lijun, Ivanovski, Valentin N., Warren, J. B., Tian, Jianjun, Zhu, Yimei, Petrović, Čedomir, "Critical current density and vortex pinning in tetragonal FeS1-xSex (x=0,0.06)" in Physical Review B: Condensed Matter and Materials Physics, 94, no. 9 (2016), https://doi.org/10.1103/PhysRevB.94.094506 . .