  In this work we analyze the quantum correlations in a spin-1/2 Ising-XXZ
diamond chain with one plaquette distorted impurity. We have shown that the
introduction of impurity into the chain can significantly increase entanglement
as well as quantum correlations compared to the original model, without
impurity. Due to the great flexibility in the choice of impurity parameters,
the model presented is very general and this fact can be very useful for future
experimental measurements. In addition to entanglement and quantum coherence,
we studied quantum teleportation through a quantum channel composed by a
coupled of Heisenberg dimers with distorted impurity in an Ising-XXZ diamond
chain, as well as fidelity in teleportation. Our analysis shows that the
appropriate choice of parameters can greatly increase all the measures
analyzed. For comparison purposes, we present all our results together with the
results of the measurements made for the original model, without impurity,
studied in previous works.
