Researchers at Brookhaven National Lab are studying electron-hole pairing in the superconducting material lanthanum barium copper oxide, or LBCO. Which of the following is the characteristic of LBCO they are studying?
W) It heats up substantially when an external magnetic field is shut off
X) Its conductance increases rapidly below 40 kelvins
Y) It develops a strong spontaneous electric polarization in response to mechanical stress
Z) It undergoes strong resonance oscillation in response to an oscillating electric field
✔️Answer:X) ITS CONDUCTANCE INCREASES RAPIDLY BELOW 40 KELVINS
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