Alternating spin-orbital order in tetragonal Sr2VO4

التفاصيل البيبلوغرافية
العنوان: Alternating spin-orbital order in tetragonal Sr2VO4
المؤلفون: Eremin, M. V., Deisenhofer, J., Eremina, R. M., Teyssier, J., van der Marel, D., Loidl, A.
المصدر: Physical Review B 84, 212407 (2011)
سنة النشر: 2011
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Strongly Correlated Electrons
الوصف: Considering spin-orbit coupling, the tetragonal crystal-field, and all relevant superexchange processes including quantum interference, we derive expressions for the energy levels of the vanadium ions in tetragonal Sr2VO4. The used parameters of the model Hamiltonian allow to describe well the excitation spectra observed in neutron scattering and optical experiments at low temperatures. The free energy exhibits a minimum which corresponds to a novel alternating spin-orbital order with strong thermal fluctuation of the orbital mixing parameter.
Comment: 4 pages, 3 figures
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevB.84.212407
URL الوصول: http://arxiv.org/abs/1111.0668
رقم الانضمام: edsarx.1111.0668
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevB.84.212407