BY SOKRATES T. PANTELIDES
IBM Research Division
Thomas J. Watson Research Center
Yorktown Heights, N.Y.
"The search for the mechanism that drives high-temperature superconductivity is moving on. A recent article discusses novel ideas about spin ordering leading to holes trapped in “bags” and hole pairing by sharing a bag.
J.R. Schrieffer, X.-G. Wen, S.-C. Zhang, “Spin-bag mechanism of high-temperature superconductivity,” Physical Review Letters, 60,944-7,1988.
"By probing the electrical and magnetic properties of grain boundaries...