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  • Iguchi, YusukeGeballe Laboratory for Advanced Materials, Stanford University, Stanford, CA 94305, USA; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA (author)

Superconducting vortices carrying a temperaturedependent fraction of the flux quantum

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • American Association for the Advancement of Science (AAAS),2023
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-334619
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-334619URI
  • https://doi.org/10.1126/science.abp9979DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20230823
  • Magnetic field penetrates type-II bulk superconductors by forming quantum vortices that enclose a magnetic flux equal to the magnetic flux quantum. The flux quantum is a universal quantity that depends only on fundamental constants. In this study, we investigated isolated vortices in the hole-overdoped Ba1?xKxFe2As2 (x = 0.77) by using scanning superconducting quantum interference device (SQUID) magnetometry. In many locations, we observed objects that carried only part of a flux quantum, with a magnitude that varied continuously with temperature. We demonstrated mobility and manipulability of these objects and interpreted them as quantum vortices with nonuniversally quantized (fractional) magnetic flux whose magnitude is determined by the temperature-dependent parameters of a multicomponent superconductor.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Shi, Ruby A.Geballe Laboratory for Advanced Materials, Stanford University, Stanford, CA 94305, USA; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA; Department of Physics, Stanford University, Stanford, CA 94305, USA (author)
  • Kihou, KunihiroNational Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan, Tsukuba (author)
  • Lee, Chul HoNational Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan, Tsukuba (author)
  • Barkman, MatsKTH,Kondenserade materiens teori(Swepub:kth)u10qcgts (author)
  • Benfenati, AndreaKTH,Kondenserade materiens teori(Swepub:kth)u1rhgsni (author)
  • Grinenko, VadimTsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 201210, China (author)
  • Babaev, EgorKTH,Kondenserade materiens teori(Swepub:kth)u1fe570h (author)
  • Moler, Kathryn A.Geballe Laboratory for Advanced Materials, Stanford University, Stanford, CA 94305, USA; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA; Department of Physics, Stanford University, Stanford, CA 94305, USA; Department of Applied Physics, Stanford University, Stanford, CA 94305, USA. (author)
  • Geballe Laboratory for Advanced Materials, Stanford University, Stanford, CA 94305, USA; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USAGeballe Laboratory for Advanced Materials, Stanford University, Stanford, CA 94305, USA; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA; Department of Physics, Stanford University, Stanford, CA 94305, USA (creator_code:org_t)

Related titles

  • In:Science: American Association for the Advancement of Science (AAAS)380:6651, s. 1244-12470036-80751095-9203

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