Colecția instituțională: Recent submissions

  • Sign-reversal thermopower in BI2SR2CACU2OY 
    BOIKO, M. P.; KANTSER, V. G.; KONOPKO, L. A.; SIDORENKO, A. S. (Elservier, 1989)
    Sign-reversal thermopower was observed in the single-phase superconductor Bi2Sr2CaCu2Oy. We consider the model density of states, which describes the thermopower behaviour.
  • Scaling behaviour of relaxation dependences in metaloxide superconductors 
    SIDORENKO, A. S.; PANAITOV, G. I.; GABOVICH, A. M.; MOISEEV, D. P.; POSTNIKOV, V. (Springer Nature Switzerland, 1991)
    In the present work we have measured the magnetization relaxation at T = 4-2 K in two substantially different superconductors: BaPbo.~sBio.250 3 (BPB, T~ 10K, Hcx ~ 12 Oe) and YBa2Cu307_ x (YBCO, T~ ~ 92 K). The SQUID ...
  • Scaling behavior of resistive transitions in thin superconducting films 
    FOGEL, N. Ya.; SIDORENKO, A. S. (Elservier, 1978)
    Resistive transitions to the superconducting state have been investigated for variations of both temperature and external magnetic field. Experimental data were obtained for thin films of vanadium and indium. The excess ...
  • Resistive Transition Broadening of Metal-Oxide Superconductors in Magnetic Fields 
    SIDORENKO, A. S.; KONOPKO, L. A.; KOSHELEV, A. E.; SIMONOV, A. Yu. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1989)
    This note reports results of measurements and calculations of a shape of superconductive transitions of Bi-Sr-Ca-Cu-O polycrystalline samples. Bi4Sr3Ca3Cu4Ox samples with 2x3x10 mm3 dimensions were prepared by solid-state ...
  • Digital platforms – support tools for the study process 
    BUGAIAN, Larisa (Universitatea Cooperatist-Comercială din Moldova, 2015)
    Teaching requires improvement of communication methods with students. Besides the interaction with the teacher in the classroom, the new information technologies allow communication online. The most widely used is the ...
  • Economia circulară: impactul asupra bunăstării planetare 
    DIACONU, Cristina; BUGAIAN, Larisa (Institutul Național de Cercetări Economice, 2020)
    Obiectivul fundamental al acestui articol constă în abordarea importanței tranziției către modelul de afaceri circular, reliefând impactul social, economic și ambiental, ca urmare a implementării noului model de dezvoltare ...
  • Efortul bugetului de stat privind finanţarea învăţământului în condiţiile COVID-19 
    MANOLE, Tatiana; ŢURCAN, Rina (Institutul Național de Cercetări Economice, 2020)
    Sistemul de învățământ reprezintă acea verigă impactul căreia în viața social economică este unul decisiv. În condițiile deficitului bugetar cronic, sistemul național de învățământ beneficiază de finanțare mult mai modestă ...
  • On Alignment of Textual Elements in a Parallel Diachronic Corpus 
    BUMBU, Tudor (Institutul de Matematică şi Informatică al AŞM, 2020)
    This paper presents the description of some tools and resources for aligning diachronic parallel texts. We try to emphasize the idea of improving the lexicographical similarity between words and expressions used in old and ...
  • Reliable Preparation of High Quality Superconducting Thin MgB2 Films for Application 
    ZDRAVKOV, V.; SIDORENKO, A.; ROSSOLENKO, A.; RYAZANOV, V.; BDIKIN, I.; KRÖMER, O.; NOLD, E.; KOCH, Th.; SCHIMMEL, Th. (IOP Publishing, 2007)
    Since the discovery of its superconductivity (J. Nagamatsu, N. Nakagawa, T. Muranka, et al., 2001, Nature, 410, 63), MgB2 attracts considerable attention. A number of groups have intensively tried to fabricate high-quality ...
  • Relaxation of the magnetisation in superconducting oxides 
    GABOVICH, A. M.; MOISEEV, D. P.; PANAITOV, G. I.; POSTNIKOV, V. M.; SIDORENKO, A. S.; SIMONOV, A. Yu. (World Scientific, 1989)
    Relaxation of the thermoremanent magnetisation M in oxide superconductors BaPb0.75Bi0.25O3, YBa2Cu3O7−δ, Bi2Sr2CaCu2Ox and Bi4Sr3Ca4Cu4Ox is measured at T=4.2 K by the SQUID magnetometer. It is well described by the law ...
  • Reentrant superconductivity in superconductor/ferromagnetic-alloy bilayers 
    ZDRAVKOV, V. I.; KEHRLE, J.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; NIDDA Von, H.-A. Krug; LINDNER, J.; MOOSBURGER-WILL, J.; NOLD, E.; MORARI, R.; RYAZANOV, V. V.; SIDORENKO, A. S.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (American Physical Society, 2010)
    We studied the Fulde-Ferrell-Larkin-Ovchinnikov-type state established due to the proximity effect in superconducting Nb/Cu41Ni59 bilayers. Using a special wedge-type deposition technique, series of 20–35 samples could be ...
  • Reentrant superconductivity in superconductor-ferromagnetic-alloy bilayers 
    ZDRAVKOV, V. I.; SIDORENKO, A. S.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; RYAZANOV, V. V.; HORN, S.; TIDECKS, R.; TAGIROV, L. R.; KUPRIYANOV, M. Yu. (Springer Nature Switzerland, 2008)
    Oscillating behavior of superconductivity in ultrathin bilayers of niobium and ferromagnetic alloy Cu41Ni59 has been observed. This phenomenon was most pronounced at a Nb layer thickness of about 7.3 nm: the superconducting ...
  • Reentrant Superconductivity in Nb/Cu1−xNix Bilayers 
    ZDRAVKOV, V.; SIDORENKO, A.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (American Physical Society, 2006)
    We report on the first observation of a pronounced reentrant superconductivity phenomenon in a superconductor/ferromagnet layered system. The results were obtained using a superconductor/ferromagnetic-alloy bilayer of ...
  • Reentrant superconductivity and superconducting critical temperature oscillations in F/S/F trilayers of Cu41Ni59/Nb/Cu41Ni59 grown on cobalt oxide 
    ZDRAVKOV, V. I.; KEHRLE, J.; LENK, D.; OBERMEIER, G.; ULLRICH, A.; MÜLLER, C.; NIDDA Von, H.-A. Krug; MORARI, R.; SIDORENKO, A. S.; TAGIROV, L. R.; HORN, S.; TIDECKS, R. (AIP Publishing LLC, 2013)
    Ferromagnet/Superconductor/Ferromagnet (F/S/F) trilayers constitute the core of a superconducting spin valve. The switching effect of the spin valve is based on interference phenomena occurring due to the proximity effect ...
  • Reentrance phenomenon in superconductor/ferromagnet nanostructures and their application in superconducting spin valves for superconducting electronics 
    SIDORENKO, A. S. (AIP Publishing LLC, 2017)
    In superconductor/ferromagnet layered structures, a Fulde–Ferrell–Larkin–Ovchinnikov-like inhomogeneous superconducting pairing give rise. The singlet and zero-projection triplet components of the pairing oscillate in ...
  • Quasi-one-dimensional Fulde-Ferrell-Larkin-Ovchinnikov-like state in Nb/Cu0.41Ni0.59 bilayers 
    SIDORENKO, A. S.; ZDRAVKOV, V. I.; KEHRLE, J.; MORARI, R.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; KUPRIYANOV, M. Yu.; RYAZANOV, V. V.; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (Springer Nature Switzerland, 2009)
    In a ferromagnet (F) being in contact with a superconductor (S) an unconventional finite-momentum pairing of electrons forming Cooper pairs occurs. As a consequence, interference effects of the pairing wave function, leading ...
  • Quasi-one-dimensional FFLO state in the Nb/Ni layered system 
    SIDORENKO, A. S.; ZDRAVKOV, V. I.; PREPELITSA, A. A.; HELBIG, C.; LUO, Y.; GSELL, S.; SCHRECK, M.; KLIMM, S.; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (Elservier, 2003)
    We investigated Nb/Ni bilayers prepared by DC magnetron sputtering on glass substrates. The quality of the films was characterized by small-angle X-ray diffraction analysis. The thickness of the layers was determined by ...
  • Quantum Transport, Superconductivity, and Weak Ferromagnetism at Bicrystal Interfaces of Bi and 3D Topological Insulator BiSb 
    MUNTYANU, Fiodor M.; GILEWSKI, Andrzej; CHISTOL, Vitalie; MUNTEANU, Viorel; ROGACKI, Krzysztof; SIDORENKO, Anatolie (Springer Nature Switzerland, 2018)
    This chapter reviews the results of study of electronic quantum transport, superconductivity, and magnetic phenomena of bicrystals of Bi and BiSb alloy system at temperatures 1.8–100 K and magnetic fields up to 400 kOe. A ...
  • Proximity Effect in Superconductor/Ferromagnet Layered Structures 
    SIDORENKO, Anatoli (Springer Nature Switzerland, 2004)
    Superconducting properties of proximity coupled Nb/Ni bilayers were investigated. Distinct oscillations of the superconducting critical temperature upon increasing of the ferromagnet layer thickness, dNi, are observed. The ...
  • Proximity effect in [Nb(1.5 nm)/Fe(x)]10/Nb(50 nm) superconductor/ferromagnet heterostructures 
    KHAYDUKOV, Yury; PÜTTER, Sabine; GUASCO, Laura; MORARI, Roman; KIM, Gideok; KELLER, Thomas; SIDORENKO, Anatolie; KEIMER, Bernhard (Beilstein Institut, 2020)
    We have investigated the structural, magnetic and superconduction properties of [Nb(1.5 nm)/Fe(x)]10 superlattices deposited on a thick Nb(50 nm) layer. Our investigation showed that the Nb(50 nm) layer grows epitaxially ...

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