Investigation of the magnetic phase diagram of the 2D ferrimagnetic J 1–J 2 model | Zendy

Robert Wieser | Zendy

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Investigation of the magnetic phase diagram of the 2D ferrimagnetic J ₁–J ₂ model

Author(s) -

Robert Wieser

Publication year - 2020

Publication title -

journal of physics condensed matter

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.908

H-Index - 228

eISSN - 1361-648X

pISSN - 0953-8984

DOI - 10.1088/1361-648x/abcbda

Subject(s) - ferrimagnetism , phase diagram , condensed matter physics , physics , quantum entanglement , diagram , magnetization , spin (aerodynamics) , quantum , quantum mechanics , phase (matter) , magnetic field , thermodynamics , mathematics , statistics

The zero-temperature phase diagram and spin dynamics of the 2D ferrimagnetic J 1 – J 2 model with ( S 1 , S 2 ) = (1/2, 1) are investigated using the time-dependent cluster mean-field theory (t-CMFT). The t-CMFT enables the investigation of the quantum-mechanical as well as semi-classical phase diagram and spin dynamics by control of the entanglement. For the characterization of the ferrimagnetic system, the magnetization, the energy per atom, the cluster quantum states and the von Neumann entropy have been determined.

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