DOI: 10.1063/1.1708487. Magnetic Anisotropy in CoMnO3

10.1063/1.1708487

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Magnetization studies on an aggregate of single crystals of ferrimagnetic CoMnO3 oriented with their trigonal axes parallel gave a value of K1+2K2= −1.4/×107 erg/cm3 at 300°K for the magnetocrystalline anisotropy expressed in the usual form: K0+K1 sin2θ+K2 sin4θ. The very large anisotropy is believed to arise from partial removal of the orbital degeneracy of the 4T1 ground state by a trigonal component of the crystal field. The anisotropy energy was calculated following the method of Slonczewski except that the entire ground-state manifold was treated rather than using a perturbation approach. The fact that the moments lie perpendicular to the trigonal axis makes the more complete calculation necessary. The observed anisotropy energy was obtained for a trigonal splitting of 1250 cm−1 and a spin orbital parameter (αλ) of 204 cm−1. The sign of the trigonal splitting is such that an orbital singlet lies lowest.

Bibliography

Cloud, W. H., & Jesson, J. P. (1966). Magnetic Anisotropy in CoMnO3. Journal of Applied Physics, 37(3), 1398â1399.

Authors 2

W. H. Cloud (first)
J. P. Jesson (additional)

References 9 Referenced 6

10.1016/0022-3697(58)90032-5 / J. Phys. Chem. Solids (1958)
10.1103/PhysRev.111.1046 / Phys. Rev. (1958)
10.1016/0022-3697(58)90033-7 / J. Phys. Chem. Solids (1958)
10.1063/1.1716679 / Rev. Sci. Instr. (1959)
{'key': '2024020405000037900_r5'}
10.1103/PhysRev.110.1341 / Phys. Rev. (1958)
{'key': '2024020405000037900_r7', 'first-page': '173', 'volume': 'A206', 'year': '1951', 'journal-title': 'Proc. Roy. Soc. (London)'} / Proc. Roy. Soc. (London) (1951)
10.1016/0022-3697(61)90178-0 / J. Phys. Chem. Solids (1961)
{'key': '2024020405000037900_r9'}

Dates

Type	When
Created	20 years, 4 months ago (April 22, 2005, 1:06 p.m.)
Deposited	1 year, 6 months ago (Feb. 4, 2024, midnight)
Indexed	1 year, 6 months ago (Feb. 4, 2024, 12:40 a.m.)
Issued	59 years, 5 months ago (March 1, 1966)
Published	59 years, 5 months ago (March 1, 1966)
Published Print	59 years, 5 months ago (March 1, 1966)

Funders 0

None

BibTeX

@article{Cloud_1966, title={Magnetic Anisotropy in CoMnO3}, volume={37}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1708487}, DOI={10.1063/1.1708487}, number={3}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Cloud, W. H. and Jesson, J. P.}, year={1966}, month=mar, pages={1398–1399} }

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