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Lista di superconduttori

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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.

Metalli

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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 [4][5]
Zn 0,855 0,005 1 sì [2][3]
Zr 0,55 0,014 1 sì [2][3]

Non metalli

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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 [7][11]
C60RbX 28 2 sì [12]
Diamante:B 11,4 4 2 sì [13][14][15]
InN 3 2 sì [16]
In2O3 3,3 ~3 2 sì [17]
Si:B 0,4 0,4 2 sì [18]
SiC:B 1,4 0,008 1 sì [19]
SiC:Al 1,5 0,04 2 sì [19]

Leghe binarie

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Formula TC (K) HC (T) Tipo BCS Note
LaB6 0,45 sì [20]
MgB2 39 74 2 sì [21]
Nb3Al 18 2 sì [2]
Nb3Ge 23,2 37 2 sì [22]
NbO 1,38 2 sì [23]
NbN 16 2 sì [2]
Nb3Sn 18,3 30 2 sì [24]
NbTi 10 15 2 sì [2]
YB6 8,4 2 sì [25][26][27]
TiN 5,6 sì [28]
ZrN 10 sì [29]
ZrB12 6,0 1 sì [27]

Ossopnictidi

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Formula TC (K) HC (T) Tipo BCS Note
LaO0.89F0.11FeAs 26 [30]
CeFeAsO0.84F0.16 41 [30]
SmFeAsO0.9F0.1 43 [30]
La0.5Y0.5FeAsO0.6 43,1 [31]
NdFeAsO0.89F0.11 52 [30]
PrFeAsO0.89F0.11 52 [32]
GdFeAsO0.85 53,5 [33]
SmFeAsO~0.85 55 [34]

Note

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  15. ^ Y, Takenouchi T, Ishii S, Ueda S, Okutsu T, Sakaguchi I, Umezawa H, Kawarada H, Tachiki M Takano, Superconducting properties of homoepitaxial CVD diamond, in Diamond and Related Materials, vol. 16, 2007, p. 911, DOI:10.1016/j.diamond.2007.01.027.
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  31. ^ Shirage, Parasharam M., Kiichi, Hijiri, Hiroshi e Akira, Superconductivity at 43 K at ambient pressure in the iron-based layered compound La1-xYxFeAsOy, in Physical Review B, vol. 78, 2008, p. 172503, Bibcode:2008PhRvB..78q2503S, DOI:10.1103/PhysRevB.78.172503.
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  33. ^ Yang, Jie, Superconductivity at 53.5 K in GdFeAsO1-d, in Superconductor Science and Technology, vol. 21, 2008, p. 082001, DOI:10.1088/0953-2048/21/8/082001.
  34. ^ Ren, Zhi-An, "Superconductivity and phase diagram in iron-based arsenic-oxides ReFeAsO1-d (Re = rare-earth metal) without fluorine doping, in EPL (Europhysics Letters), vol. 83, 2008, p. 17002, DOI:10.1209/0295-5075/83/17002.
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