Quantum corrections to the entropy of a Reissner-Nordström black hole due to spin fields

The quantum corrections to the entropy of the Reissner-Nordström black hole due to the gravitational, electromagnetic, and neutrino fields are calculated by using the brick-wall model. The appearance of logarithmically divergent terms is demonstrated. These terms not only depend on the characteristics of the black hole but also on the spin of the fields. The contribution of any spin field is not proportional to the scalar one and is compatible from the results obtained earlier. For some quasiextreme black holes, the spin field gives no contribution to the entropy.