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Superconducting vor...
Superconducting vortices carrying a temperaturedependent fraction of the flux quantum
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- Iguchi, Yusuke (författare)
- 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
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- Shi, Ruby A. (författare)
- 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
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- Kihou, Kunihiro (författare)
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan, Tsukuba
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- Lee, Chul Ho (författare)
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan, Tsukuba
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- Barkman, Mats (författare)
- KTH,Kondenserade materiens teori
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- Benfenati, Andrea (författare)
- KTH,Kondenserade materiens teori
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- Grinenko, Vadim (författare)
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 201210, China
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- Babaev, Egor (författare)
- KTH,Kondenserade materiens teori
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- Moler, Kathryn A. (författare)
- 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.
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(creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2023
- 2023
- Engelska.
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Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 380:6651, s. 1244-1247
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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