One-magnon Raman scattering in NicMg1-cO solid solutions

E. Cazzanelli; A. Kuzmin; G. Mariotto; N. Mironova-Ulmane

doi:10.1002/pssc.200460271

One-magnon Raman scattering in Ni_cMg_1-cO solid solutions

E. Cazzanelli
, A. Kuzmin^*
, G. Mariotto
, N. Mironova-Ulmane

^*Corresponding author for this work

University of Calabria
University of Trento

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

Abstract

The one-magnon Raman scattering was studied for the first time in antiferromagnetic Ni_cMg_1-cO solid solutions as a function of temperature and composition. We found that (i) the one-magnon frequency extrapolated to T = 0 K experiences an abrupt change between c = 0.99 and c = 0.9 and (ii) the one-magnon energy for highly diluted nickel oxide vanishes significantly below the Nèel temperature. The obtained dependences are compared to the theoretical predictions within the mean field approximation.

Original language	English
Pages (from-to)	708-711
Number of pages	4
Journal	Physica Status Solidi C: Conferences
Volume	2
Issue number	1
DOIs	https://doi.org/10.1002/pssc.200460271
Publication status	Published - 2005

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abstract = "The one-magnon Raman scattering was studied for the first time in antiferromagnetic NicMg1-cO solid solutions as a function of temperature and composition. We found that (i) the one-magnon frequency extrapolated to T = 0 K experiences an abrupt change between c = 0.99 and c = 0.9 and (ii) the one-magnon energy for highly diluted nickel oxide vanishes significantly below the N{\`e}el temperature. The obtained dependences are compared to the theoretical predictions within the mean field approximation.",

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AU - Cazzanelli, E.

AU - Kuzmin, A.

AU - Mariotto, G.

AU - Mironova-Ulmane, N.

PY - 2005

Y1 - 2005

N2 - The one-magnon Raman scattering was studied for the first time in antiferromagnetic NicMg1-cO solid solutions as a function of temperature and composition. We found that (i) the one-magnon frequency extrapolated to T = 0 K experiences an abrupt change between c = 0.99 and c = 0.9 and (ii) the one-magnon energy for highly diluted nickel oxide vanishes significantly below the Nèel temperature. The obtained dependences are compared to the theoretical predictions within the mean field approximation.

AB - The one-magnon Raman scattering was studied for the first time in antiferromagnetic NicMg1-cO solid solutions as a function of temperature and composition. We found that (i) the one-magnon frequency extrapolated to T = 0 K experiences an abrupt change between c = 0.99 and c = 0.9 and (ii) the one-magnon energy for highly diluted nickel oxide vanishes significantly below the Nèel temperature. The obtained dependences are compared to the theoretical predictions within the mean field approximation.

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JF - Physica Status Solidi C: Conferences

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One-magnon Raman scattering in Ni_cMg_1-cO solid solutions

Abstract

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