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Electrostatic contr...
Electrostatic control of quasiparticle poisoning in a hybrid semiconductor-superconductor island
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- Nguyen, H. Q. (författare)
- University of Copenhagen,Niels Bohr Institute,University of Science and Technology of Hanoi (USTH)
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- Sabonis, D. (författare)
- University of Copenhagen,Niels Bohr Institute
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- Razmadze, D. (författare)
- University of Copenhagen,Niels Bohr Institute
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visa fler...
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- Mannila, E. T. (författare)
- Aalto University
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- Maisi, V. F. (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LU profilområde: Ljus och material,Lunds universitets profilområden,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas,Aalto University
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- van Zanten, D. M.T. (författare)
- Niels Bohr Institute,University of Copenhagen
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- O'Farrell, E. C.T. (författare)
- University of Copenhagen,Niels Bohr Institute
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- Krogstrup, P. (författare)
- University of Copenhagen,Niels Bohr Institute
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- Kuemmeth, F. (författare)
- University of Copenhagen,Niels Bohr Institute
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- Pekola, J. P. (författare)
- Aalto University
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- Marcus, C. M. (författare)
- University of Copenhagen,Niels Bohr Institute
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Physical Review B. - 2469-9950. ; 108:4
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The performance of superconducting devices is often degraded by the uncontrolled appearance and disappearance of quasiparticles, a process known as poisoning. We demonstrate the electrostatic control of quasiparticle poisoning in the form of single-charge tunneling across a fixed barrier onto a Coulomb island in an InAs/Al hybrid nanowire. High-bandwidth charge sensing was used to monitor the charge occupancy of the island across Coulomb blockade peaks, where tunneling rates were maximal, and Coulomb valleys, where tunneling was absent. Electrostatic gates changed the on-peak tunneling rates by two orders of magnitude for a barrier with fixed normal-state resistance, which we attribute to the gate dependence of the size and softness of the induced superconducting gap on the island, corroborated by separate density-of-states measurements. Temperature and magnetic field dependence of tunneling rates are also investigated.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Nguyen, H. Q.
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Sabonis, D.
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Razmadze, D.
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Mannila, E. T.
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Maisi, V. F.
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van Zanten, D. M ...
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visa fler...
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O'Farrell, E. C. ...
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Krogstrup, P.
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Kuemmeth, F.
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Pekola, J. P.
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Marcus, C. M.
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visa färre...
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