DOI: 10.1063/1.338526. RKKY interactions across yttrium layers in Gd-Y superlattices

RKKY interactions across yttrium layers in Gd-Y superlattices

10.1063/1.338526

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

A simple calculation of the RKKY coupling between two Gd arrays in a Gd-Y superlattice is presented. The calculation is valid for Gd arrays consisting of a single atomic layer. The Fourier transform J(q) of the exchange interaction between two Gd layers separated by Y is taken to be that of Gd layers embedded in an Y matrix. Plausible arguments are given in support of this procedure. The coupling is calculated by making use only of the measured J(q) in bulk Gd and of the calculated generalized susceptibilities of Gd and Y. The coupling is found to be of fairly long range and to be consistent in sign with recent neutron scattering measurements of long-range order in Gd-Y superlattices. Numerical calculations on a model, one-dimensional superlattice with two free-electron metals of different electron densities have not provided a useful guide for calculating RKKY interactions in superlattices and further theoretical work is necessary.

Bibliography

Yafet, Y. (1987). RKKY interactions across yttrium layers in Gd-Y superlattices. Journal of Applied Physics, 61(8), 4058â4060.

Authors 1

Y. Yafet (first)

References 15 Referenced 103

10.1103/PhysRevLett.55.1402 / Phys. Rev. Lett. (1985)
{'key': '2024020406134321100_r1a', 'first-page': '771', 'volume': '54–57', 'year': '1986', 'journal-title': 'J. Magn. Magn. Mater.'} / J. Magn. Magn. Mater. (1986)
10.1103/PhysRevLett.24.16 / Phys. Rev. Lett. (1970)
10.1103/PhysRevB.17.2348 / Phys. Rev. B (1978)
{'key': '2024020406134321100_r3'}
10.1063/1.2163623 / J. Appl. Phys. (1968)
{'key': '2024020406134321100_r4a'}
10.1103/PhysRevB.4.1100 / Phys. Rev. B (1971)
{'key': '2024020406134321100_r6', 'first-page': '388', 'volume': '130B', 'year': '1985', 'journal-title': 'Physica'} / Physica (1985)
10.1063/1.333498 / J. Appl. Phys. (1984)
10.1103/PhysRevLett.56.2700 / Phys. Rev. Lett. (1986)
10.1103/PhysRevLett.56.259 / Phys. Rev. Lett. (1986)
10.1103/PhysRevLett.26.140 / Phys. Rev. Lett. (1971)
10.1103/PhysRev.144.504 / Phys. Rev. (1966)
10.1103/PhysRev.168.672 / Phys. Rev. (1968)

Dates

Type	When
Created	23 years ago (July 26, 2002, 8:55 a.m.)
Deposited	1 year, 6 months ago (Feb. 4, 2024, 1:13 a.m.)
Indexed	2 weeks, 3 days ago (Aug. 6, 2025, 9:34 a.m.)
Issued	38 years, 4 months ago (April 15, 1987)
Published	38 years, 4 months ago (April 15, 1987)
Published Print	38 years, 4 months ago (April 15, 1987)

Funders 0

None

BibTeX

@article{Yafet_1987, title={RKKY interactions across yttrium layers in Gd-Y superlattices}, volume={61}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.338526}, DOI={10.1063/1.338526}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Yafet, Y.}, year={1987}, month=apr, pages={4058–4060} }

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