Three-fold Symmetry Effect on Mn2+ Centers in a LiNbO₃Crystal
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Spin Hamiltonian for the paramagnetic center with a three-fold symmetry and high spin (S≥2) multiplicity should contain the fourth order zero-field splitting (ZFS) terms. Electron magnetic resonance transition lines of the center with S = 5/2 are expected to split in a pair when the magnetic field is applied off the principal axes of ZFS, while they are superimposed when the magnetic field is applied parallel to the principal axes of ZFS. In this study we report that the transition lines of Mn2+ centers at the three-fold symmetric sites in LiNbO3, chemically equivalent but physically different, split in two due to the nonzero fourth order ZFS term.
Abstract
Spin Hamiltonian for the paramagnetic center with a three-fold symmetry and high spin (S≥2) multiplicity should contain the fourth order zero-field splitting (ZFS) terms. Electron magnetic resonance transition lines of the center with S = 5/2 are expected to split in a pair when the magnetic field is applied off the principal axes of ZFS, while they are superimposed when the magnetic field is applied parallel to the principal axes of ZFS. In this study we report that the transition lines of Mn2+ centers at the three-fold symmetric sites in LiNbO3, chemically equivalent but physically different, split in two due to the nonzero fourth order ZFS term.
참고문헌 (12)
- A. M. Prokhorov, "Physics and Chemistry of Crystalline Lithium Niobate" (1990), Adam Hilger
- 장민수, "페롭스카이트형 강유전체의 물성 연구", 새물리, 55(4), pp.165~181 (2007), 한국물리학회
- ESR from Biophysics to Materials Science, "Modern Applications of EPR", pp.1998, Rudowicz C. Z.
- Y. N. Choi, , J. Phys.: Condens. Matter, 11, pp.4723~ (1999)
- S. H. Choh, , Appl. Magn. Reson, 24, pp.313~ (2003)
- 박일우, "VTE 처리된 강유전 LiNbO3 단결정 내의 Nd3+와 Er3+ 초미세 구조의 비등방성", 한국자기학회지, 15(2), pp.118~124 (2005), 한국자기학회
- I.-W. Park, , Bull. Mag. Res, 17, pp.276~ (1995)
- C. Rudowicz, , Mag. Res. Rev, 13, pp.1~ (1987)
- C. Rudowicz, , J. Phys. C:Solid State Phys, 20, pp.6033~ (1987)
- 박일우, "Irradiation Induced Defects in a Si-doped GaN Single Crystal by Neutron Irradiation", Journal of the Korean Magnetic Resonance Society, 12(2), pp.74~80 (2008), 한국자기공명학회
- I.-W. Park, , J. Korean Phys. Soc, 29, pp.S699~ (1996)
- G. I. Malovichiko, , J. Phys. : Condens. Matter, 5, pp.3971~ (1993)