Scientist discovered residual entropy at ultra-low temperature with the exact value predicted
The researcher showed how electrons around an ionholmium +3 interact with conduction electrons and lead to the predicted value of the residual entropy at ultralow temperatures. He considered the three-channel Kondo effect, (an increase in electrical resistance at temperatures close to zero), in a numerical model of the cubic compound of holmium.
One of the many mysteries facedcondensed matter physics in the 20th century, there was a curious case of the resistivity of impure metals. Electrical resistance in metals is largely due to the scattering of conduction electrons from metal ions, which vibrate due to thermal energy. The lower the temperature, the less vibration and the weaker the effect. One would expect the resistivity of metals to simply drop as they approach absolute zero. But as the temperature drops, the resistivity reaches a minimum before rising again. This effect is known as the Kondo effect. Japanese scientist Jun Kondo was the first to realize that this is due to magnetic impurities interacting with conduction electrons during hybridization. The Kondo effect contributed to the development of nanoelectronics.
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