N
Nikolai D. Zhigadlo
Researcher at University of Bern
Publications - 254
Citations - 5673
Nikolai D. Zhigadlo is an academic researcher from University of Bern. The author has contributed to research in topics: Superconductivity & Fermi surface. The author has an hindex of 37, co-authored 249 publications receiving 5096 citations. Previous affiliations of Nikolai D. Zhigadlo include University of Kiel & Solid State Physics Laboratory.
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Inhomogeneity of charge-density-wave order and quenched disorder in a high-Tc superconductor
Gaetano Campi,Antonio Bianconi,Nicola Poccia,Ginestra Bianconi,Luisa Barba,Gianmichele Arrighetti,Davide Innocenti,J. Karpinski,J. Karpinski,Nikolai D. Zhigadlo,Sergey M. Kazakov,Sergey M. Kazakov,Manfred Burghammer,Manfred Burghammer,Martin v. Zimmermann,Michael Sprung,Alessandro Ricci +16 more
TL;DR: Micro X-ray diffraction imaging of the spatial distribution of both short-range charge- density-wave ‘puddles’ and quenched disorder in HgBa2CuO4 + y, the single-layer cuprate with the highest Tc, 95 kelvin found that the charge-density-wave puddles have a fat-tailed size distribution that is typical of self-organization near a critical point.
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Carbon substitution in MgB2 single crystals: Structural and superconducting properties
S. M. Kazakov,Roman Puzniak,Roman Puzniak,Krzysztof Rogacki,Krzysztof Rogacki,Andrei V. Mironov,Nikolai D. Zhigadlo,J. Jun,Ch. Soltmann,Bertram Batlogg,J. Karpinski +10 more
TL;DR: In this paper, the growth of carbon-substituted magnesium diboride is reported and the structural, transport, and magnetization data are presented, and the superconducting transition temperature decreases monotonically with increasing carbon content in the full investigated range of substitution.
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Type-1.5 superconductivity.
Victor Moshchalkov,Mariela Menghini,Taichiro Nishio,Qinghua Chen,Alejandro Silhanek,Vu Hung Dao,Liviu F. Chibotaru,Nikolai D. Zhigadlo,J. Karpinski +8 more
TL;DR: The existence of a novel superconducting state in high quality two-component MgB2 single crystalline superconductors where a unique combination of both type-1 and type-2 superconductor conditions is realized, which leads to a vortex-vortex interaction attractive at long distances and repulsive at short distances.
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Direct observation of spin-orbit coupling in iron-based superconductors
Sergey Borisenko,D. V. Evtushinsky,Zhonghao Liu,Igor Morozov,Rhea Kappenberger,Sabine Wurmehl,Bernd Büchner,Alexander Yaresko,Timur K. Kim,Moritz Hoesch,T. Wolf,Nikolai D. Zhigadlo +11 more
TL;DR: In this article, a systematic analysis of the principal members of the iron pnictide family of superconductors reveals a substantial spin-orbit splitting, which can induce a broad range of unusual physical properties, from topologically non-trivial insulating states to unconventional pairing.
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Single crystals of superconducting SmFeAsO1−xFy grown at high pressure
TL;DR: In this paper, single crystals of SmFeAsO1−xFy of a size up to 120 × 100 µm2 have been grown from NaCl/KCl flux at a pressure of 30 kbar and temperature of 1350-1450 °C using the cubic anvil high-pressure technique.