You are in the accessibility menu

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/129049
Title: 
Antiferromagnetic resonance of polycrystalline BiMn2O5
Author(s): 
Institution: 
  • Universidade de São Paulo (USP)
  • Universidade Estadual Paulista (UNESP)
  • Forschungszentrum Julich
  • Inst Angew Mat IAM ESS
  • Florida State University
ISSN: 
0038-1098
Sponsorship: 
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Abstract: 
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.
Issue Date: 
1-Apr-2015
Citation: 
Solid State Communications. Oxford: Pergamon-elsevier Science Ltd, v. 207, p. 40-43, 2015.
Time Duration: 
40-43
Publisher: 
Elsevier B.V.
Keywords: 
  • Multiferroics
  • Magnetic anisotropy
  • Antiferromagnetic resonance
Source: 
http://www.sciencedirect.com/science/article/pii/S0038109815000502
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/129049
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

There are no files associated with this item.
Show full item record   View Statistics
 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.