We present the complete set of constitutive relations and field equations for the linear thermoelastic relaxed micromorphic continuum and investigate its variants for wave propagation. It is found that the additional thermal effects give rise to new waves and generate couplings with longitudinal waves which are not existing in the relaxed micromorphic continuum without thermal effects. However, transverse waves go un-affected by the thermal properties. The dispersion curves have been computed numerically for a particular model and compared with those presented by Madeo et al. [22].

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