3-D Graphic Representation (IMAGE) Moscow Institute of Physics and Technology Caption This is a 3-D graphic representation of the experiment using a scanning tunneling microscope: H denotes the external magnetic field whose direction is marked by the arrow, φ is the phase of the superconducting wave function, and the interrogation point marks the area that was examined. Credit Dimitri Roditchev, ESPCI-Paris, PSL University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.