Antiferromagnetic resonance of polycrystalline BiMn2O5
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
21/10/2015
21/10/2015
01/04/2015
|
| Resumo |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Multi-frequency electron spin resonance (ESR) measurements in polycrystalline samples of BiMn2O5 were employed to observe antiferromagnetic resonances (AFMR) in the range 0-14 A below the Neel temperature. The experimental data were analyzed using the phenomenological theory of Yosida and Nagamiya. Three resonance modes were identified in the xz (ac) plane from the data at 5 K. Macroscopic constants of anisotropy K-1 = 12.5 x 10(6) erg/cm(3) and K-2 = 7.0 x 10(6) erg/cm(3) were calculated allowing for the single-site anisotropy constant K'to be estimated at T=0 K. The obtained value shows reasonable agreement with theoretical predictions. |
| Formato |
40-43 |
| Identificador |
http://www.sciencedirect.com/science/article/pii/S0038109815000502 Solid State Communications. Oxford: Pergamon-elsevier Science Ltd, v. 207, p. 40-43, 2015. 0038-1098 http://hdl.handle.net/11449/129049 http://dx.doi.org/10.1016/j.ssc.2015.02.007 WOS:000351340900009 |
| Idioma(s) |
eng |
| Publicador |
Elsevier B.V. |
| Relação |
Solid State Communications |
| Direitos |
closedAccess |
| Palavras-Chave | #Multiferroics #Magnetic anisotropy #Antiferromagnetic resonance |
| Tipo |
info:eu-repo/semantics/article |
