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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Zhang, Gufei
University of Southern Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2019Anomalous anisotropy in superconducting nanodiamond films induced by crystallite geometrycitations
- 2017Bosonic Confinement and Coherence in Disordered Nanodiamond Arrayscitations
- 2016Bosonic Anomalies in Boron-Doped Polycrystalline Diamondcitations
- 2016Study of the superconducting properties of the new intermetallic compound Zr1-xNbxB2citations
- 2013Metal-Bosonic Insulator-Superconductor Transition in Boron-Doped Granular Diamondcitations
- 2011Role of grain size in superconducting boron-doped nanocrystalline diamond thin films grown by CVDcitations
- 2010In/extrinsic granularity in superconducting boron-doped diamondcitations
- 2010Granular superconductivity in metallic and insulating nanocrystalline boron-doped diamond thin filmscitations
Places of action
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article
Bosonic Confinement and Coherence in Disordered Nanodiamond Arrays
Abstract
In the presence of disorder, superconductivity exhibits short-range characteristics linked to localized Cooper pairs which are responsible for anomalous phase transitions and the emergence of quantum states such as the bosonic insulating state. Complementary to well-studied homogeneously disordered superconductors, superconductor-normal hybrid arrays provide tunable realizations of the degree of granular disorder for studying anomalous quantum phase transitions. Here, we investigate the superconductor-bosonic dirty metal transition in disordered nanodiamond arrays as a function of the dispersion of intergrain spacing, which ranges from angstroms to micrometers. By monitoring the evolved superconducting gaps and diminished coherence peaks in the single-quasiparticle density of states, we link the destruction of the superconducting state and the emergence of bosonic dirty metallic state to breaking of the global phase coherence and persistence of the localized Cooper pairs. The observed resistive bosonic phase transitions are well modeled using a series-parallel circuit in the framework of bosonic confinement and coherence.