  According to Ahluwalia and Grumiller, massive spin-half fields of
mass-dimension one can be constructed using the eigenspinors of the
charge-conjugation operator (Elko) as expansion coefficients. In this paper, we
generalize their result by constructing quantum fields from higher-spin Elko.
The kinematics of these fields are thoroughly investigated. Starting with the
field operators, their propagators and Hamiltonians are derived. These fields
satisfy the higher-spin generalization of the Klein-Gordon but not the Dirac
equation. Independent of the spin, they are all of mass-dimension one and are
thus endowed with renormalizable self-interactions. These fields violate
Lorentz symmetry. The violation can be characterized by a non Lorentz-covariant
term that appears in the Elko spin-sums. This term provides a decomposition of
the generalized higher-spin Dirac operator in the momentum space thus
suggesting a possible connection between the mass-dimension one fields and the
Lorentz-invariant fields.
