Translate:
English
Chinese (S)
Chinese (T)
Croatian
Dutch
French
German
Hebrew
Italian
Japanese
Korean
Portuguese
Russian
Serbian
Spanish
Swedish
Turkish
Additional
superconductor
English Wikipedia - The Free Encyclopedia
Download this dictionary
Superconductivity
Superconductivity
is a phenomenon of exactly zero
electrical resistance
and expulsion of
magnetic fields
occurring in certain materials when below a characteristic
critical temperature
. It was discovered by Dutch physicist
Heike Kamerlingh Onnes
on April 8, 1911 in
Leiden
. Like
ferromagnetism
and
atomic spectral lines
, superconductivity is a
quantum mechanical
phenomenon. It is characterized by the
Meissner effect
, the complete ejection of
magnetic field lines
from the interior of the superconductor as it transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the
idealization
of
perfect conductivity
in
classical physics
.
See more at Wikipedia.org...
© This article uses material from
Wikipedia
®
and is licensed under the
GNU Free Documentation License
and under the
Creative Commons Attribution-ShareAlike License