TY - JOUR PB - American Physical Society ID - 10.1103/Physics.3.41 TI - Modulated superfluid density in an iron-pnictide superconductor JF - Physics JA - Physics J1 - PHYSICS VL - 3 IS - SP - 41 EP - PY - 2010/05/17/ UR - http://link.aps.org/doi/10.1103/Physics.3.41 A1 - Tranquada, John M. ER -