Antiferromagnetic-resonance spectrum in charge-ordered R0.5Ca0.5MnO3 manganites (R=La, Pr, Tb): The effect of orbital and charge structures

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Antiferromagnetic-resonance spectrum in charge-ordered R0.5Ca0.5MnO3 manganites (R=La, Pr, Tb): The effect of orbital and charge structures. / Gonchar’, L. E.; Nikiforov, A. E.
In: Journal of Experimental and Theoretical Physics, Vol. 96, No. 3, 01.03.2003, p. 510-522.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{260565f48c7747a9bdfc4da2c1d998d4,

title = "Antiferromagnetic-resonance spectrum in charge-ordered R0.5Ca0.5MnO3 manganites (R=La, Pr, Tb): The effect of orbital and charge structures",

abstract = "A theoretical study is made into the effect of the crystal, orbital, and charge structures on the magnetic structure and spin-wave spectra and on the antiferromagnetic resonance (AFMR) for R0.5Ca0.5MnO 3 crystals of monoclinic structure. The model assumes fixed crystal, charge, and orbital structures and enables one to determine the orbitally dependent exchange interaction and single-ion anisotropy for R = La, Pr, Tb. A 16-sub-lattice weakly noncollinear magnetic CE-structurc without a ferromagnetic component is obtained. The behavior of magnetic structure in an external magnetic field is simulated, and the values of fields of spin-flop-transition for different Rs are obtained. The law of spin-wave dispersion and the field dependence of the antiferromagnetic-resonance spectrum are calculated.",

author = "Gonchar{\textquoteright}, {L. E.} and Nikiforov, {A. E.}",

note = "This study was supported in part by the CRDF program (REC-005), by the Ministry of Education of the Russian Federation (grant no. E00-3.4-277), and by the Russian Foundation for Basic Research (project 02-02-96412). We are grateful to Z. Jirak (Czechia) for placing at our disposal exact experimental data reported [25] at the ICNS2001 Conference (September 13–16, 2001, Munich, Germany).",

year = "2003",

month = mar,

day = "1",

doi = "10.1134/1.1567425",

language = "English",

volume = "96",

pages = "510--522",

journal = "Journal of Experimental and Theoretical Physics",

issn = "1063-7761",

publisher = "American Institute of Physics Publising LLC",

number = "3",

}

RIS

TY - JOUR

T1 - Antiferromagnetic-resonance spectrum in charge-ordered R0.5Ca0.5MnO3 manganites (R=La, Pr, Tb): The effect of orbital and charge structures

AU - Gonchar’, L. E.

AU - Nikiforov, A. E.

N1 - This study was supported in part by the CRDF program (REC-005), by the Ministry of Education of the Russian Federation (grant no. E00-3.4-277), and by the Russian Foundation for Basic Research (project 02-02-96412). We are grateful to Z. Jirak (Czechia) for placing at our disposal exact experimental data reported [25] at the ICNS2001 Conference (September 13–16, 2001, Munich, Germany).

PY - 2003/3/1

Y1 - 2003/3/1

N2 - A theoretical study is made into the effect of the crystal, orbital, and charge structures on the magnetic structure and spin-wave spectra and on the antiferromagnetic resonance (AFMR) for R0.5Ca0.5MnO 3 crystals of monoclinic structure. The model assumes fixed crystal, charge, and orbital structures and enables one to determine the orbitally dependent exchange interaction and single-ion anisotropy for R = La, Pr, Tb. A 16-sub-lattice weakly noncollinear magnetic CE-structurc without a ferromagnetic component is obtained. The behavior of magnetic structure in an external magnetic field is simulated, and the values of fields of spin-flop-transition for different Rs are obtained. The law of spin-wave dispersion and the field dependence of the antiferromagnetic-resonance spectrum are calculated.

AB - A theoretical study is made into the effect of the crystal, orbital, and charge structures on the magnetic structure and spin-wave spectra and on the antiferromagnetic resonance (AFMR) for R0.5Ca0.5MnO 3 crystals of monoclinic structure. The model assumes fixed crystal, charge, and orbital structures and enables one to determine the orbitally dependent exchange interaction and single-ion anisotropy for R = La, Pr, Tb. A 16-sub-lattice weakly noncollinear magnetic CE-structurc without a ferromagnetic component is obtained. The behavior of magnetic structure in an external magnetic field is simulated, and the values of fields of spin-flop-transition for different Rs are obtained. The law of spin-wave dispersion and the field dependence of the antiferromagnetic-resonance spectrum are calculated.

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UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=33747426244

U2 - 10.1134/1.1567425

DO - 10.1134/1.1567425

M3 - Article

VL - 96

SP - 510

EP - 522

JO - Journal of Experimental and Theoretical Physics

JF - Journal of Experimental and Theoretical Physics

SN - 1063-7761

IS - 3

ER -

ID: 44072376