Superconductivity at Room Temperature
Researchers from Indian Institute of Science (IISc)-Bangalore have reported observing superconductivity at room temperature, in a new composite material made of gold and silver.
Superconductivity is defined as a phenomenon in which the electrical resistivity suddenly drops to zero at its transition temperature. The phenomenon was first discovered in 1911 in mercury (Hg).
Electricity is conducted through the movement of free electrons in a conducting material like copper. The movement of electrons is random and haphazard. As a result, they frequently collide with one another, and with other particles in the material, thus offering resistance to the flow of current.
In a superconducting state, all the electrons align themselves in a particular direction and move without any obstruction in a coherent manner. Superconductivity has been found to occur in many metallic elements, intermetallic compounds, organo-metallic compounds, semiconductors and ceramics.
Discovery from Researchers of IISc
Superconductivity so far was observed only at extremely low temperatures, in the range of 100 C below zero. The search for a material that exhibits superconductivity at room temperature has been going on for decades.
Because of zero resistance, superconducting materials can save huge amounts of energy, and be used to make highly efficient electrical appliances. But the inability to find a material exhibiting superconductivity at room temperature was the biggest impediment in its practical application to build energy efficient devices. If the discovery from the researchers from IISc stands confirmed, it could be one of the biggest breakthroughs in physics in this century so far.
ARWU Ranking, 2020
The ARWU (Academic Ranking of World Universities) is also called Shanghai Ranking. Around fifteen In...
‘Xcelerator Bengaluru’ Initiative unveiled in Bangaluru
The state of Karnataka has launched the “Xcelerator Bengaluru Initiative” in the bid to provide ...
ADB signs 100 million USD loan to boost power supply in Bengaluru
The Asian Development Bank recently signed an agreement of 100 million USD modernize and upgrade the...
Bepi Colombo Spacecraft reaches Mercury in its journey towards Venus
The BepiColombo Space Craft was launched jointly by Japan Aerospace Exploration Agency and European ...
Global Smart City Index: Indian cities slip; Singapore tops
On September 17, 2020, the Institute for Management Development along with Singapore University rele...
|View All E-Books: Recent Release|