There are three most important symmetries to be considered here. For example, ferromagnetic ordering breaks the rotational symmetry in spin space, i.e., the ordered phase has lower symmetry than the Hamiltonian of the system. As Landau recognized, the essence of phase transitions is the change of the symmetry. Most fundamental to understanding the physical properties of TMOs is the concept of symmetry of the order parameter. In recent years, there has been a burst of activity to manipulate these phenomena, as well as create new ones, using oxide heterostructures. This gives rise to a variety of phenomena, e.g., Mott insulators, various charge/spin/orbital orderings, metal-insulator transitions, multiferroics, and superconductivity. These electron correlations prohibit the double occupancy of metal sites and induce a local entanglement of charge, spin, and orbital degrees of freedom. Transition metal oxides (TMOs) are an ideal arena for the study of electronic correlations because the s-electrons of the transition metal ions are removed and transferred to oxygen ions, and hence the strongly correlated d-electrons determine their physical properties such as electrical transport, magnetism, optical response, thermal conductivity, and superconductivity. More information about this report can be viewed below. It has been viewed 796 times, with 8 in the last month. Was provided by the UNT Libraries Government Documents Department Office of Scientific & Technical Information Technical Reports In recent years, there has been a burst … ![]()
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