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Precise calorimetric measurements have been carried out in the 7 - 300 Ktemperature range on two ceramic samples of thulium 123 cuprates TmBa2Cu3O6.92and TmBa2Cu3O6.70. The temperature dependence of the heat capacity was analyzedin the region where the pseudogap state (PGS) takes place. The latticecontribution was subtracted from the experimental data. The PGS component hasbeen obtained by comparing electronic heat capacities of two investigatedsamples because the PGS contribution for the 6.92 sample is negligible. Theanomalous behavior of the electronic heat capacity near the temperatureboundary of PGS was found. It is supposed that this anomaly is due topeculiarities in N(E) function where N is the density of electronic states andE is the energy of carriers of charge.Comment: 12 pages, 3 Postscript figure

Anomalies of the electronic heat capacity of thulium cuprates in the pseudogap phase region