PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

(Bi,Pb)-Sr-Ca-Cu-O glass-ceramics - superconductor and granular metal

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In the (Bi,Pb)-Sr-Ca-Cu-O system, materials of various electrical and superconducting properties may be produced by a glass-ceramic method. As a result of heat treatment, amorphous material partially crystallizes. It causes an increase in the size and/or the number of conducting grains and a decrease in the width of the insulating barriers between them. The resistivity of the samples containing small, weakly coupled grains in the normal state follows the exponential temperature dependence of resistivity, while in the samples with larger intergrain conductivities the dependence is logarithmic. Still stronger connections between the grains lead to linear or almost linear ?(T). The granular character of the (Bi,Pb)4Sr3Ca3Cu4Ox materials also influences their superconducting properties.
Czasopismo
Rocznik
Strony
153--161
Opis fizyczny
Bibliogr. 14 poz.
Twórcy
autor
autor
autor
autor
autor
  • Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdańsk, Poland
Bibliografia
  • [1] ABELES B., SHENG P., COUTTS M.D., ARIE Y., Structural and electrical properties of granular metal films, Advances in Physics 24(3), 1975, pp. 407– 61.
  • [2] SHENG P., ABELES B., ARIE Y., Hopping conductivity in granular metals, Physical Review Letters 31(1), 1973, pp. 44–7.
  • [3] ADKINS C.J., Conduction in granular metals-variable-range hopping in a Coulomb gap?, Journal of Physics: Condensed Matter 1(7), 1989, pp. 1253–9.
  • [4] ZVYAGIN I.P., KEIPER R., Conduction in granular metals by virtual tunneling on the fractal percolation cluster, Physica Status Solidi B 230(1), 2002, pp. 151–5.
  • [5] GERBER A., MILNER A., DEUTSCHER G., KARPOVSKY M., GLADKIKH A., Insulator-superconductor transition in 3D granular Al-Ge films, Physical Review Letters 78(22), 1997, pp. 4277–80.
  • [6] CHUI T., DEUTSCHER G., LINDENFELD P., MCLEAN W.L., Conduction in granular aluminum near the metal-insulator transition, Physical Review B: Condensed Matter 23(11), 1981, pp. 6172–5.
  • [7] BELOBORODOV I.S., LOPATIN A.V., VINOKUR V.M., EFETOV K.B., Granular electronic systems, Reviews of Modern Physics 79(2), 2007, pp. 469–518.
  • [8] EFETOV K.B.‚ TSCHERSICH A., Coulomb effects in granular materials at not very low temperatures, Physical Review B: Condensed Matter and Materials Physics 67(17), 2003‚ p. 174205.
  • [9] MOOIJ J.H., Electrical conduction in concentrated disordered transition metal alloys, Physica Status Solidi A 17(2), 1973, pp. 521–30.
  • [10] LEE P.A., RAMAKRISHNAN T.V., Disordered electronic systems, Reviews of Modern Physics 57(2), 1985, pp. 287–337.
  • [11] GAZDA M., Initial stage of (Bi–Pb)2Sr2Ca1Cu2Ox high Tc superconductor crystallisation from the amorphous phase, Physica C: Superconductivity 411(3–4), 2004, pp. 170–9.
  • [12] GAZDA M., KUSZ B., STIZZA S., NATALI R., KLIMCZUK T., MURAWSKI L., Electronic conduction in (Bi, Pb)–Sr–Ca–Cu–O glass-ceramics, Journal of Non-Crystalline Solids 353(11–12), 2007, pp. 1023–9.
  • [13] ROA-ROJAS J., MENEGOTTO COSTA R., PUREUR P., PRIETO P., Pairing transition, coherence transition, and the irreversibility line in granular GdBa2Cu3O7–, Physical Review B: Condensed Matter 61(18), 2000, pp. 12457–62.
  • [14] GAZDA M., The (Bi,Pb)4Sr3Ca3Cu4Ox glass–ceramics: Disordered metal and superconductor, Journal of Non-Crystalline Solids 352(40–41), 2006, pp. 4246–9.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW9-0006-0040
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.