Model for the structural changes occurring at low temperatures inPdDx. II. Extension to lower concentrations

Resistivity behavior in isothermal annealing of Pd–H(D) alloys around 50K

“…Ellis et al [7] showed that the "50 K anomaly" is caused by the ordering of deuterium atoms with measurements of electrical resistivity and neutron diffraction for PdD 0.76 alloy. By further extensive neutron diffraction studies, Anderson et al [9], Blaschko et al [10,11] and Kennedy et al [12] showed that interstitial hydrogen (deuterium) atoms on octahedral sites of the fcc Pd lattice are ordered at the anomaly though the structures in detail are still under discussion.…”

Hydrogen migration in fast cooled Pd–H alloys around 50K

“…It has been already clarified by extensive studies with electrical resistivity measurement and neutron scattering measurement that the resistivity of Pd-H(D) alloys increases in the early stage of hydrogen ordering and decreases due to the disordering [2,5,[9][10][11][12][13][14][15][16][17]. The resistivity increase in the early stage and the decrease in the disordering are caused by the nucleation and growth of ordered domains and by the shrinking (when the size of the domains is smaller than the critical size) and/or disappearance of the domains, respectively.…”

Resistivity maximums due to growth of hydrogen-ordered domains in resistivity curves of Pd–H alloys during heating up with constant rates

“…Many investigators have been interested in the behaviors of Pd-H(D) alloys because they show anomalous properties around 50 K [1][2][3][4][5][6]. The isochronal heating-up curves of the electrical resistivity of the Pd-H(D) alloys and/or the heatingup curves with constant rates have a maximum around 50 K [7][8][9][10][11][12][13].…”