Superconductors - Critical Temperatures of Some Pure Metals or Type 1 Superconductors

Background

Type 1 superconductors are mainly metals and metalloids that show some conductivity at room temperature. They were the first materials found to exhibit superconductivity. Mercury was the first element observed to display superconducting properties in 1911.

They generally require extreme cold before they will become superconducting. However, they exhibit a sharp transition as they move into the superconducting state.

The table below lists some Type 1 superconductors and their critical temperatures (Tc), i.e. the temperature at which they become superconducting.

Table 1. Critical temperatures (Tc) of some pure metals or type 1 superconductors.

Element

Symbol

Tc (K)

Tc (°C)

Tc (°F)

Aluminium

Al

1.75

-271

-457

Beryllium

Be

0.03

-273

-460

Cadmium

Cd

0.52

-273

-459

Gallium

Ga

1.08

-272

-458

Hafnium

Hf

0.13

-273

-459

Mercury

Hg

4.15

-269

-452

Indium

In

3.41

-270

-454

Iridium

Ir

0.11

-273

-459

Lanthanum

La

4.88

-268

-451

Molybdenum

Mo

0.92

-272

-458

Niobium

Nb

9.25

-264

-443

Osmium

Os

0.66

-272

-458

Lead

Pb

7.2

-266

-447

Rhenium

Re

1.7

-271

-457

Ruthenium

Ru

0.49

-273

-459

Tin

Sn

3.72

-269

-453

Tantalum

Ta

4.47

-269

-452

Technetium

Tc

7.8

-265

-446

Thorium

Th

1.38

-272

-457

Titanium

Ti

0.4

-273

-459

Tellurium

Tl

2.38

-271

-455

Vanadium

V

5.4

-268

-450

Tungsten

W

0.02

-273

-460

Zinc

Zn

0.85

-272

-458

Zirconium

Zr

0.61

-273

-459

Some other elements do exhibit superconductivity, however require pressure at sufficiently low temperatures to induce superconducting behaviour.

 

Source: AZoM.com

 

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Submit