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Difference in anisotropic vortex pinning in pristine and proton-irradiated (Ca0.85La0.15)10(Pt3As8)(Fe2As2)5 single crystals

Title
Difference in anisotropic vortex pinning in pristine and proton-irradiated (Ca0.85La0.15)10(Pt3As8)(Fe2As2)5 single crystals
Author(s)
Choi, W.J.Seo, Y.I.Park, K.Kwon, Yong Seung
DGIST Authors
Choi, W.J.Seo, Y.I.Park, K.Kwon, Yong Seung
Issued Date
2021-10
Type
Article
Author Keywords
Proton irradiationThermally activated flux motionVortex dynamicsVortex pinning anisotropy
Keywords
HIGH-TC SUPERCONDUCTORSPHASE-DIAGRAMTEMPERATURERESISTIVITYTRANSITIONVORTICESLIQUIDCREEPGLASS
ISSN
2211-3797
Abstract
We measured the in-plane electrical resistivity of pristine and irradiated (Ca0.85La0.15)10(Pt3As8)(Fe2As2)5 single crystals in B//c and B//ab up to B = 13 T to study the difference between in-plane and out-of-plane vortex pinning and the effect of proton irradiation on these pinning. The crystal structure analyzed by the selected area electron diffraction was monoclinic in these two samples. Protons incident along the c-axis caused an expansion of the lattice constants a and b. The expansion of the lattice constants significantly increased the c-axis coherence length ξc. The vortex pinning in B//ab is well understood by an intrinsic pinning mechanism, which was attenuated by proton irradiation. On the other hand, the vortex pinning in B//c is well understood by the plastic creep theory due to point defects that are enhanced by proton irradiation. © 2021 The Author(s)
URI
http://hdl.handle.net/20.500.11750/15543
DOI
10.1016/j.rinp.2021.104809
Publisher
Elsevier BV
Related Researcher
  • 권용성 Kwon, Yong Seung 화학물리학과
  • Research Interests High Tc Superconductors and magnetic materials; Thermoelectric Materials
Files in This Item:
000702555000003.pdf

000702555000003.pdf

기타 데이터 / 2.93 MB / Adobe PDF download
Appears in Collections:
Department of Physics and Chemistry Quantum Functional Materials Laboratory 1. Journal Articles

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