The magnetization of superconducting ...
|Title||The magnetization of superconducting LA1.85SR0.15CU1-XVXO4-DELTA|
|Author(s)||J. Wallace, E. Payzant, H. King, G. Stroink, D. Dahn|
|Journal||Journal of Applied Physics|
|Abstract||Oxides of the type La1.85Sr0.15Cu(1-x)V(x)O4-partial were prepared with vanadium contents, x, ranging from 0 to 0.10 in increments of 0.01. Vanadium entered into solid solution in the tetragonal K-phase structure at concentrations up to x = 0.05. Further additions of vanadium resulted in the formation of SrV5O11 and an orthorombic distortion of the K-phase structure. An increase in the irreversibility of the magnetization at 4.2 K, at a vanadium concentration of x = 0.01, was attributed to increased flux pinning due to solid solution hardening. Reduced magnetic irreversibilities and critical temperatures were observed at higher vanadium concentrations, and attributed to a loss of strontium from the K phase due to the formation of SrV5O11.|
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