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Polaritons in modified antiferromagnets
(American Physical Society, 1992-11-01)
A theoretical study of mixed modes of uniaxial Heisenberg antiferromagnets by a dc field is presented. The static field is applied in an arbitrary direction relative to the easy axis and special attention is given to the ...
Effects of electron-electron correlations on defect and interface states in amorphous Si and Si02 systems
(American Physical Society, 1986-07-15)
The effects of electron-electron correlations are included in the nearest-neighbor tight-binding
model of tetrahedrally coordinated covalent solids in the amorphous phase. The amorphous systems
are represented by Bethe ...
Abscesso esplênico
(2000)
Splenic abscess is a rare disease usually associated with immunosuppressed states. Its diagnosis may be difficult
due to non-specific symptoms . The authors report a case of a healthy woman, 42 years old, bearer of
splenic ...
Low - temperature interface specific heat due to localized modes
(ELSEVIER, 1982)
Fator de encobrimento e seletividade no transporte: análise do fenônemo e estudo experimental
(Associação Brasileira de Recursos Hídricos (ABRHidro), 1998-03)
The degree of size-selectivity in sediment transport of sand mixtures was studied by making experiments using a sediment-feed laboratory channel. Four different mixtures were used, with diameters varying between 0,59 mm ...
Violência e sagrado: o que no criminoso anuncia o santo?
(2000-09)
Este artigo apresenta um exame preliminar de dois cultos religiosos
populares que ocorrem atualmente no Nordeste do Brasil. Em dois
cemitérios, no Rio Grande do Norte, o cangaceiro Jararaca e o ladrão
homicida Baracho ...
Spin freezing of the spin-glass Fe0.25Zn0,75F2: a Mossbauer study
(Brazil Journal Physics, 1991-01)
We report 57~e Mõssbauer measurements in the diluted Ising antiferromagnet Fe0.25Zn0,75F2 at temperatures between 4.2 and 28 K. DC susceptibility measurements in the same sample show a spin-glass phase at a freezing ...
Phase diagram of thin antiferromagnetic films in strong magnetic fields.
(American Physical Society, 1994-11-01)
A theoretical study of the phase diagram of antiferromagnetic thin films is presented. The theory is based on a numerical self-consistent local-field calculation that allows for size and surface effects. The properties of ...
Brazing Al2O3 to sintered Fe-Ni-Co alloys
(Springer, 1999-12)