Tuning Order in Cuprate Superconductors

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Science  18 Jan 2002:
Vol. 295, Issue 5554, pp. 452-454
DOI: 10.1126/science.1068718

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Cuprate superconductors are able to transport electrical current without substantial resistance at relatively high temperatures. However, the mechanism through which they are able to do so remains incompletely understood. In their Perspective, Sachdev and Zhang highlight Hoffmann et al.'s scanning tunneling microscopy study of vortices caused by an applied field. This study provides insights into how spin and charge densities change as a function of applied field in competition with superconductivity.