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 and the adjoining grains, progress has been attained in understanding how to control the critical current density which is a key property for potential applications of superconductors.
P. Chaudhari, J. Mannhart, D. Dimos, C.C. Tsuei, J. Chi, M.M. Oprysko, M. Scheuermann, “Direct measurement of the superconducting properties of single grain boundaries in YlBa2Cu3O7delta,” Physical Review Letters, 60, 1653-6, 1988.
" Scanning tunneling microscopy does it again! It is possible to look at the reactivity of individual ...
