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Hydrogen absorption by metallic thin films detected by optical transmittance measurements

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Fig. 2 e Transmittance of a sample of 4.1 nm Pd on glass as a function of wavelength in hydrogen at 4.4 3 10 3 Pa
Fig. 4 e Transmittance for a sample of 8.2 nm Nb on glass when exposed to 9.8 3 10 3 Pa of hydrogen
Fig. 6 e Relative change in (a) transmittance, (b) electrical resistance and (c) reflectance of 7.6 nm (squares), 6.5 nm (triangles), and 4.2 nm (circles) thick Ti films with a w2 nm Pd capping layer as a function of hydrogen pressures

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