Thermo emf in a two-dimensional electron-hole system in HgTe quantum wells in the presence of magnetic field. The role of the diffusive and the phonon-drag contributions - Olshanetsky, E. B.; Kvon, Z. D.; Gusev, Guennadii Michailovich; Entin, M. V.; Magarill, L. I.; Mikhailov, N. N. (Low Temperature Physics, 2021)