Lista di superconduttori

Da Wikipedia, l'enciclopedia libera.

La tabella seguente elenca alcuni materiali superconduttori, insieme ai relativi parametri.

X:Y indica il materiale X drogato con Y. TC è la temperatura critica più alta riportata in kelvin, HC il campo magnetico critico in tesla. Tipo indica se il superconduttore è di tipo 1 o tipo 2. BCS indica se la superconduttività del materiale è spiegata dalla teoria BCS.

Indice

Metalli [modifica]

Formula TC (K) HC (T) Tipo BCS Note
Al 1,20 0,01 1 sì [1][2][3]
Cd 0,52 0,0028 1 sì [2][3]
Gd 1,083 0,0058 1 sì [4]
Hf 0,165 1 sì [2]
a-Hg 4,15 0,04 1 sì [2][3]
b-Hg 3,95 0,04 1 sì [2][3]
Ga 1,1 0,005 1 sì [2][3]
ln 3,4 0,03 1 sì [2][3]
Ir 0,14 0,0016[4] 1 sì [2]
a-La 4,9 1 sì [2]
b-La 6,3 1 sì [2]
Mo 0,92 0,0096 1 sì [2][4]
Nb 9,26 0,82 2 sì [2][3]
Os 0,65 0,007 1 sì [2]
Pa 1,4 1 sì [5]
Pb 7,19 0,08 1 sì [2][3]
Re 2,4 0,03 1 sì [2][3][6]
Ru 0,49 0,005 1 sì [2][3]
Sn 3,72 0,03 1 sì [2][3]
Ta 4,48 0,09 1 sì [2][3]
Tc 7,46-11,2 0,04 2 sì [2][3]
a-Th 1,37 0,013 1 sì [2][3]
Ti 0,39 0,01 1 sì [2][3]
Tl 2,39 0,02 1 sì [2][3]
a-U 0,68 1 sì [2][5]
b-U 1,8 1 sì [5]
V 5,03 1 2 sì [2][3]
W 0,011 0,00012 1 sì [5][4]
Zn 0,855 0,005 1 sì [2][3]
Zr 0,55 0,014 1 sì [2][3]

Non metalli [modifica]

Con non metalli si intendono materiali non considerati normalmente metalli, ma che possono diventare superconduttori se molto drogati.

Formula TC (K) HC (T) Tipo BCS Note
Ba8Si46 8,07 0,008 2 sì [7]
C6Ca 11,5 0,95 2 [8]
C6Li3Ca2 11,15 2 [8]
C8K 0,14 2 [8]
C8KHg 1,4 2 [8]
C6K 1,5 2 [9]
C3K 3,0 2 [9]
C3Li <0,35 2 [9]
C2Li 1,9 2 [9]
C3Na 2,3-3,8 2 [9]
C2Na 5,0 2 [9]
C8Rb 0,025 2 [8]
C6Sr 1,65 2 [8]
C6Yb 6,5 2 [8]
C60Cs2Rb 33 2 sì [10]
C60K3 19,8 0,013 2 sì [11][12]
C60RbX 28 2 sì [13]
Diamante:B 11,4 4 2 sì [14][15][16]
InN 3 2 sì [17]
In2O3 3,3 ~3 2 sì [18]
Si:B 0,4 0,4 2 sì [19]
SiC:B 1,4 0,008 1 sì [20]
SiC:Al 1,5 0,04 2 sì [20]

Leghe binarie [modifica]

Formula TC (K) HC (T) Tipo BCS Note
LaB6 0,45 sì [21]
MgB2 39 74 2 sì [22]
Nb3Al 18 2 sì [2]
Nb3Ge 23,2 37 2 sì [23]
NbO 1,38 2 sì [24]
NbN 16 2 sì [2]
Nb3Sn 18,3 30 2 sì [25]
NbTi 10 15 2 sì [2]
YB6 8,4 2 sì [26][27][28]
TiN 5,6 sì [29]
ZrN 10 sì [30]
ZrB12 6,0 1 sì [28]

Ossopnictidi [modifica]

Formula TC (K) HC (T) Tipo BCS Note
LaO0.89F0.11FeAs 26 [31]
CeFeAsO0.84F0.16 41 [31]
SmFeAsO0.9F0.1 43 [31]
La0.5Y0.5FeAsO0.6 43,1 [32]
NdFeAsO0.89F0.11 52 [31]
PrFeAsO0.89F0.11 52 [33]
GdFeAsO0.85 53,5 [34]
SmFeAsO~0.85 55 [35]

Note [modifica]

  1. ^ Cochran, John, Mapother D. (1958). Superconducting Transition in Aluminum. Physical Review 111: 132. DOI:10.1103/PhysRev.111.132.
  2. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac Matthias, B., Geballe T., Compton V. (1963). Superconductivity. Reviews of Modern Physics 35: 1. DOI:10.1103/RevModPhys.35.1.
  3. ^ a b c d e f g h i j k l m n o p q r s Eisenstein, Julian (1954). Superconducting Elements. Reviews of Modern Physics 26: 277. DOI:10.1103/RevModPhys.26.277.
  4. ^ a b c d Efthimios Kaxiras, Atomic and electronic structure of solids, Cambridge University Press, 2003.
  5. ^ a b c d R. D. Fowler et al. (1965). Superconductivity of Protactinium. Phys. Rev. Lett. 15: 860. DOI:10.1103/PhysRevLett.15.860.
  6. ^ Daunt, J., Smith T. (1952). Superconductivity of Rhenium. Physical Review 88: 309. DOI:10.1103/PhysRev.88.309.
  7. ^ Rachi, Takeshi, Kumashiro Ryotaro, Fukuoka Hiroshi, Yamanaka Shoji, Tanigaki Katsumi (2006). Sp3-network superconductors made from IVth-group elements. Science and Technology of Advanced Materials 7: S88. DOI:10.1016/j.stam.2006.02.012.
  8. ^ a b c d e f g Emery, Nicolas, Hérold Claire, Marêché Jean-François, Lagrange Philippe (2008). Synthesis and superconducting properties of CaC6. Science and Technology of Advanced Materials 9: 044102. DOI:10.1088/1468-6996/9/4/044102.
  9. ^ a b c d e f I.T Belash et al. (1990). Superconductivity of GIC with Li, Na and K. Synthetic Metals 34: 455. DOI:10.1016/0379-6779(89)90424-4.
  10. ^ K. Tanigaki T. W. Ebbesen S. Saito J. Mizuki J. S. Tsai Y. Kubo & S. Kuroshima (1991). Superconductivity at 33 K in CsxRbyC60. Nature 352: 222–223. DOI:10.1038/352222a0.
  11. ^ Xiang, X. -D., Hou J. G., Briceno G., Vareka W. A., Mostovoy R., Zettl A., Crespi V. H., Cohen M. L. (1992). Synthesis and Electronic Transport of Single Crystal K3C60. Science 256 (5060): 1190. DOI:10.1126/science.256.5060.1190. PMID 17795215.
  12. ^ Rachi, Takeshi, Kumashiro Ryotaro, Fukuoka Hiroshi, Yamanaka Shoji, Tanigaki Katsumi (2006). Sp3-network superconductors made from IVth-group elements. Science and Technology of Advanced Materials 7: S88. DOI:10.1016/j.stam.2006.02.012.
  13. ^ Rosseinsky, M., Ramirez A., Glarum S., Murphy D., Haddon R., Hebard A., Palstra T., Kortan A., Zahurak S. (1991). Superconductivity at 28 K in Rb_{x}C_{60}. Physical Review Letters 66: 2830. DOI:10.1103/PhysRevLett.66.2830.
  14. ^ E. Ekimov et al. "Superconductivity in diamond" Nature 428 (2004) 542 (free download)
  15. ^ Ekimov, Evgeny A, Sidorov Vladimir A, Zoteev Andrey V, Lebed Yury B, Thompson Joe D, Stishov Sergey M (2008). Structure and superconductivity of isotope-enriched boron-doped diamond. Science and Technology of Advanced Materials 9: 044210. DOI:10.1088/1468-6996/9/4/044210.
  16. ^ Takano, Y, Takenouchi T, Ishii S, Ueda S, Okutsu T, Sakaguchi I, Umezawa H, Kawarada H, Tachiki M (2007). Superconducting properties of homoepitaxial CVD diamond. Diamond and Related Materials 16: 911. DOI:10.1016/j.diamond.2007.01.027.
  17. ^ Inushima, Takashi (2006). Electronic structure of superconducting InN. Science and Technology of Advanced Materials 7: S112. DOI:10.1016/j.stam.2006.05.009.
  18. ^ Makise, Kazumasa, Kokubo Nobuhito, Takada Satoshi, Yamaguti Takashi, Ogura Syunsuke, Yamada Kazumasa, Shinozaki Bunjyu, Yano Koki, Inoue Kazuyoshi (2008). Superconductivity in transparent zinc-doped In2O3films having low carrier density. Science and Technology of Advanced Materials 9: 044208. DOI:10.1088/1468-6996/9/4/044208.
  19. ^ E. Bustarret et al. Nature 444 (2006) 465
  20. ^ a b Muranaka, Takahiro, Kikuchi Yoshitake, Yoshizawa Taku, Shirakawa Naoki, Akimitsu Jun (2008). Superconductivity in carrier-doped silicon carbide. Science and Technology of Advanced Materials 9: 044204. DOI:10.1088/1468-6996/9/4/044204.
  21. ^ G. Schell, H. Winter, H. Rietschel, and F. Gompf (1982). Electronic structure and superconductivity in metal hexaborides. Phys. Rev. B 25: 1589. DOI:10.1103/PhysRevB.25.1589.
  22. ^ Nagamatsu, Jun, Nakagawa Norimasa, Muranaka Takahiro, Zenitani Yuji, Akimitsu Jun (2001). Superconductivity at 39 K in magnesium diboride.. Nature 410: 63. DOI:10.1038/35065039. PMID 11242039.
  23. ^ Oya, Gin-ichiro, E. J. Saur (1979). Preparation of Nb3Ge films by chemical transport reaction and their critical properties. Journal of Low Temperature Physics 34 (5–6): 569–583. DOI:10.1007/BF00114941.
  24. ^ Hulm, J. K., Jones C. K., Hein R. A., Gibson J. W. (1972). Superconductivity in the TiO and NbO systems. Journal of Low Temperature Physics 7: 291. DOI:10.1007/BF00660068.
  25. ^ Matthias, B. T., Geballe, T. H.; Geller, S.; Corenzwit, E. (1954). {{{titolo}}} 95: 1435–1435. DOI:10.1103/PhysRev.95.1435.
  26. ^ Z. Fisk et al. (1976). Growth of YB6 single crystals. Mater. Res. Bull. 11: 1019. DOI:10.1016/0025-5408(76)90179-3.
  27. ^ P. Szabo et al. (2007). Superconducting energy gap of YB6 studied by point-contact spectroscopy. Physica C 460-462: 626. DOI:10.1016/j.physc.2007.04.135.
  28. ^ a b M. I. Tsindlekht et al. (2008). Linear and nonlinear low-frequency electrodynamics of surface superconducting states in an yttrium hexaboride single crystal. Phys. Rev. B 78: 024522. DOI:10.1103/PhysRevB.78.024522.
  29. ^ Handbook of refractory carbides and nitrides: properties, characteristics, processing, and applications, William Andrew, 1996.
  30. ^ Characterization of nitrogen distribution profiles in fcc transition metal nitrides by means ofTc measurements. Surface and Interface Analysis 15: 377. DOI:10.1002/sia.740150606.
  31. ^ a b c d K. Ishida et al (2009). To What Extent Iron-Pnictide New Superconductors Have Been Clarified: A Progress Report. J. Phys. Soc. Jpn. 78: 062001. DOI:10.1143/JPSJ.78.062001.
  32. ^ Shirage, Parasharam M. (2008). Superconductivity at 43 K at ambient pressure in the iron-based layered compound La1-xYxFeAsOy. Physical Review B 78: 172503. DOI:10.1103/PhysRevB.78.172503.
  33. ^ Ren, Z. A. (2008). Superconductivity at 52 K in iron based F doped layered quaternary compound Pr[O1–xFx]FeAs. Materials Research Innovations 12: 105. DOI:10.1179/143307508X333686.
  34. ^ (2008). Superconductivity at 53.5 K in GdFeAsO1-d. Superconductor Science and Technology 21: 082001. DOI:10.1088/0953-2048/21/8/082001.
  35. ^ Ren, Zhi-An (2008). "Superconductivity and phase diagram in iron-based arsenic-oxides ReFeAsO1-d (Re = rare-earth metal) without fluorine doping. EPL (Europhysics Letters) 83: 17002. DOI:10.1209/0295-5075/83/17002.
Estratto da "http://it.wikipedia.org/w/index.php?title=Lista_di_superconduttori&oldid=57289212"