"Lattice instabilities in bulk EuTiO3." . "Le\u017Eai\u010D, M." . . "Rushchanskii, K. Z." . . "structural phase transition; phonons; lattice dynamics"@en . "Lattice instabilities in bulk EuTiO3." . "The phase purity and the lattice dynamics in bulk EuTiO3 were investigated both microscopically, using x-ray and neutron diffraction, 151 Eu-M\u00F6ssbauer spectroscopy, and 151 Eu nuclear inelastic scattering, and macroscopically using calorimetry, resonant ultrasound spectroscopy, and magnetometry. A stiffening on heating around room temperature is indicative of a phase transition similar to the one observed in SrTiO3, however, although previous studies reported the structural phase transition to the tetragonal I4/mcm phase our detailed sample purity analysis and thorough structural studies using comple mentary techniques did not confirm a direct phase transition. Instead, in the same temperature range, Eu delocalization is observed which might explain the lattice dynamical instabilities." . . "Kachlik, M." . "Lattice instabilities in bulk EuTiO3."@en . "Physical Review. B" . "Bessas, D." . . "Kamba, Stanislav" . "Sergueev, I." . "84418" . "Lattice instabilities in bulk EuTiO3."@en . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "The phase purity and the lattice dynamics in bulk EuTiO3 were investigated both microscopically, using x-ray and neutron diffraction, 151 Eu-M\u00F6ssbauer spectroscopy, and 151 Eu nuclear inelastic scattering, and macroscopically using calorimetry, resonant ultrasound spectroscopy, and magnetometry. A stiffening on heating around room temperature is indicative of a phase transition similar to the one observed in SrTiO3, however, although previous studies reported the structural phase transition to the tetragonal I4/mcm phase our detailed sample purity analysis and thorough structural studies using comple mentary techniques did not confirm a direct phase transition. Instead, in the same temperature range, Eu delocalization is observed which might explain the lattice dynamical instabilities."@en . . . . "I, P(ED1.1.00/02.0068), P(GAP204/12/1163), P(LD11035), P(LD12026)" . . "000326159200002" . . . . "10.1103/PhysRevB.88.144308" . . "RIV/68378271:_____/13:00399505" . "11"^^ . . . "14" . . . "Hermann, R. P." . "Bednarcik, J." . . "9"^^ . "Gourdon, O." . . "[4D195430226E]" . "88" . "Disch, S." . "RIV/68378271:_____/13:00399505!RIV14-MSM-68378271" . "1"^^ . . "M\u00E1ca, K." . . "1098-0121" .