  Charged massive scalar fields are studied in the gravitational,
electromagnetic, dilaton, and axion fields of rotating linear dilaton black
holes. In this geometry, we separate the covariant Klein-Gordon equation into
radial and angular parts and obtain the exact solutions of both the equations
in terms of the confluent Heun functions. Using the radial solution, we study
the problems of resonant frequencies, entropy/area quantization, and greybody
factor. We also analyze the behavior of the wave solutions near the event
horizon of the rotating linear dilaton black hole and derive its Hawking
temperature via the Damour-Ruffini-Sannan method.
