Articles with "andreev reflection" as a keyword



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Anisotropic superconductivity in La(O,F)BiSeS crystals revealed by field-angle dependent Andreev reflection spectroscopy

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Published in 2017 at "Solid State Communications"

DOI: 10.1016/j.ssc.2017.07.016

Abstract: Abstract From field-angle dependent Andreev reflection spectroscopy on single crystals of La(O,F)BiSeS, which belongs to the recently discovered BiCh 2 (Ch = S, Se) based layered superconductors, we found that the superconductivity in La(O,F)BiSeS is… read more here.

Keywords: field; andreev reflection; spectroscopy; field angle ... See more keywords
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Engineering Crossed Andreev Reflection in Double Bilayer Graphene.

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Published in 2019 at "Nano letters"

DOI: 10.1021/acs.nanolett.9b03981

Abstract: Crossed Andreev reflection (CAR) is a nonlocal process that converts an incoming electron (hole) from one normal electrode to an out-going hole (electron) in another normal electrode through a superconductor (SC). CAR corresponds to the… read more here.

Keywords: bilayer graphene; double bilayer; crossed andreev; andreev reflection ... See more keywords
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Equal-Spin Andreev Reflection on Junctions of Spin-Resolved Quantum Hall Bulk State and Spin-Singlet Superconductor

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Published in 2018 at "Scientific Reports"

DOI: 10.1038/s41598-018-21707-0

Abstract: The recent development of superconducting spintronics has revealed the spin-triplet superconducting proximity effect from a spin-singlet superconductor into a spin-polarized normal metal. In addition recently superconducting junctions using semiconductors are in demand for highly controlled… read more here.

Keywords: singlet superconductor; spin singlet; spin; andreev reflection ... See more keywords
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Epitaxial contact Andreev reflection spectroscopy of NbN/Co2FeSi layered devices

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Published in 2018 at "Applied Physics Letters"

DOI: 10.1063/1.5007287

Abstract: We investigated the spin polarization P of Co-based Heusler alloy Co2FeSi by epitaxial contact Andreev reflection (ECAR) spectroscopy using epitaxially grown superconductor NbN and Heusler alloy Co2FeSi layered devices. Ferromagnetic Co2FeSi possesses the highest Curie… read more here.

Keywords: andreev reflection; contact andreev; co2fesi; spectroscopy ... See more keywords
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Charge Transport Properties of the Majorana Zero Mode Induced Noncollinear Spin Selective Andreev Reflection*

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Published in 2019 at "Chinese Physics Letters"

DOI: 10.1088/0256-307x/36/10/107102

Abstract: We study the charge transport of the spin-selective Andreev reflection(SSAR) effect between a spin polarized scanning tunneling microscope(STM) tip and a Majorana zero mode(MZM). Considering both the MZM and the excited states, we calculate the… read more here.

Keywords: transport; charge transport; andreev reflection; spin ... See more keywords
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Non-local Andreev reflection through Andreev molecular states in graphene Josephson junctions

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Published in 2022 at "2D Materials"

DOI: 10.1088/2053-1583/acce4b

Abstract: We propose that a device composed of two vertically stacked monolayer graphene Josephson junctions can be used for Cooper pair splitting. The hybridization of the Andreev bound states of the two Josephson junction can facilitate… read more here.

Keywords: josephson junctions; graphene josephson; non local; andreev ... See more keywords
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Multiband superconductivity and possible nodal gap in RbCr3As3 revealed by Andreev reflection and single-particle tunneling measurements

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Published in 2019 at "Physical Review B"

DOI: 10.1103/physrevb.100.094511

Abstract: By measuring point-contact Andreev reflection spectra in the newly discovered chromium-based quasi-one-dimensional superconductor RbCr$_{3}$As$_{3}$, we find clear evidence of two superconducting components, one has a gap value of about 1.8 meV and another about 5… read more here.

Keywords: andreev reflection; gap; single particle; particle tunneling ... See more keywords
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Superconducting order parameter and bosonic mode in hydrogen-substituted NdFeAsO0.6H0.36 revealed by multiple-Andreev-reflection spectroscopy

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Published in 2019 at "Physical Review B"

DOI: 10.1103/physrevb.100.144504

Abstract: Using intrinsic multiple-Andreev-reflection-effect spectroscopy, we studied ballistic superconductor-normal metal-superconductor (SnS) contacts in layered oxypnictide superconductors NdFeAsO0.6H0.36 with critical temperatures Tc=45−48 K. We directly determined the magnitude of two bulk superconducting order parameters, the large gap… read more here.

Keywords: spectroscopy; andreev reflection; multiple andreev; bosonic mode ... See more keywords
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Crossed Andreev reflection in topological insulator nanowire T junctions

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Published in 2021 at "Physical Review B"

DOI: 10.1103/physrevb.104.085415

Abstract: We numerically study crossed Andreev reflection (CAR) in a topological insulator nanowire T-junction where one lead is proximitized by a superconductor. We perform realistic simulations based on the 3D BHZ model and compare the results… read more here.

Keywords: topological insulator; andreev reflection; insulator nanowire; crossed andreev ... See more keywords
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Superconducting order parameters in overdoped BaFe1.86Ni0.14As2 revealed by multiple Andreev reflection spectroscopy of planar break junctions

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Published in 2021 at "Physical Review B"

DOI: 10.1103/physrevb.104.174512

Abstract: Using multiple Andreev reflection (MAR) spectroscopy, we studied superconductor normal metal superconductor (SnS) semiballistic contacts with incoherent transport in overdoped pnictide superconductors BaFe1.86Ni0.14As2 with critical temperature Tc ≈ 12 K. We directly determined an anisotropic… read more here.

Keywords: spectroscopy; andreev reflection; multiple andreev; 86ni0 14as2 ... See more keywords
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Enhancement of crossed Andreev reflection in a superconducting ladder connected to normal metal leads

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Published in 2017 at "Physical Review B"

DOI: 10.1103/physrevb.95.104517

Abstract: Crossed Andreev reflection (cAR) is a scattering process that happens in a quantum transport setup consisting of two normal metals (NM) attached to a superconductor (SC), where an electron incident from one NM results in… read more here.

Keywords: enhancement crossed; crossed andreev; andreev reflection; reflection superconducting ... See more keywords