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Hoogenboom, BW;
Kadowaki, K;
Revaz, B;
Li, M;
Fischer, O;
(2001)
Linear and field-independent relation between vortex core state energy and gap in Bi2Sr2CaCu2O8+d.
Physical Review Letters
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, Article 267001. 10.1103/PhysRevLett.87.267001.