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

^*Šī darba korespondējošais autors

University of Calabria
University of Trento

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

Kopsavilkums

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.

Oriģinālvaloda	Angļu
Lapas (no-līdz)	708-711
Lapu skaits	4
Žurnāls	Physica Status Solidi C: Conferences
Sējums	2
Izdevuma numurs	1
DOIs	https://doi.org/10.1002/pssc.200460271
Publikācijas statuss	Publicēts - 2005

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AU - Mariotto, G.

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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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