ANALYZING SPIN TUNNELING CONSIDERING QUADRUPOLE EXCITATIONS IN SINGLE MOLECULE MAGNET

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YOUSEFI Y.; FAKHARI H.; MUMINOV K.; BENAM M.R.

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Journal: Iranian Journal of Physics Research Year:2018 | Volume:17 | Issue:5 Page(s): 743-751

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Title

ANALYZING SPIN TUNNELING CONSIDERING QUADRUPOLE EXCITATIONS IN SINGLE MOLECULE MAGNET

Author(s)

YOUSEFI Y. | FAKHARI H. | MUMINOV K. | BENAM M.R. | Issue Writer Certificate

Keywords

COHERENT STATEQ1

SPIN TUNNELINGQ1

INSTANTONQ1

QUADRUPOLE EXCITATIONQ1

Abstract

Spin tunneling effect in Single Molecule Magnet (SMM) Fe8 is studied by INSTANTON calculation technique. The SU (3) generalized spin COHERENT STATE in real parameter has been used as a trial function. For this SMM, splitting of energy levels arises due to the presence of a Berry like phase in action, which causes interference between tunneling trajectories (instantons). For this SMM, it is established that the use of QUADRUPOLE EXCITATION (g dependence) changes not only the location of the quenching points, but also the number of these points. Also, these quenching points are related with hysteresis loops of this SMM. If dipole and QUADRUPOLE EXCITATIONs are considered in classical energy, the number of these hysteresis loops equals to that obtained from experimental data.

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APA: Copy

YOUSEFI, Y., FAKHARI, H., MUMINOV, K., & BENAM, M.R.. (2018). ANALYZING SPIN TUNNELING CONSIDERING QUADRUPOLE EXCITATIONS IN SINGLE MOLECULE MAGNET. IRANIAN JOURNAL OF PHYSICS RESEARCH, 17(5 ), 743-751. SID. https://sid.ir/paper/1594/en

Vancouver: Copy

YOUSEFI Y., FAKHARI H., MUMINOV K., BENAM M.R.. ANALYZING SPIN TUNNELING CONSIDERING QUADRUPOLE EXCITATIONS IN SINGLE MOLECULE MAGNET. IRANIAN JOURNAL OF PHYSICS RESEARCH[Internet]. 2018;17(5 ):743-751. Available from: https://sid.ir/paper/1594/en

IEEE: Copy

Y. YOUSEFI, H. FAKHARI, K. MUMINOV, and M.R. BENAM, “ANALYZING SPIN TUNNELING CONSIDERING QUADRUPOLE EXCITATIONS IN SINGLE MOLECULE MAGNET,” IRANIAN JOURNAL OF PHYSICS RESEARCH, vol. 17, no. 5 , pp. 743–751, 2018, [Online]. Available: https://sid.ir/paper/1594/en

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