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Strong pinning and vortex energy distributions in single-crystalline Ba(Fe1−xCox)2As2

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Academic year: 2021

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FIG. 2: (Color online) (a) Transition temperature, T c , versus Co doping-level. The error bars denote the local spread of T c values within a given crystal
FIG. 3: Bitter decoration images of Ba(Fe 1 − x Co x ) 2 As 2 single- single-crystals (a) crystal #2.1 with x = 0
FIG. 7: (Color online) Color-coded maps of the modulus of the individual vortex pinning force per unit length,  calcu-lated from the images in Fig
FIG. 8: (Color online) Critical-current densities in our Ba(Fe 0.925 Co 0.075 ) 2 As 2 crystals

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