scholarly journals Magneto-optic enhancement and magnetic properties in Fe antidot films with hexagonal symmetry

2010 ◽  
Vol 81 (5) ◽  
Author(s):  
E. Th. Papaioannou ◽  
V. Kapaklis ◽  
P. Patoka ◽  
M. Giersig ◽  
P. Fumagalli ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Hexagonal Symmetry ◽  
Magneto Optic

SPECIFIC HEAT OF UPd2Al3

1993 ◽  
Vol 07 (01n03) ◽  
pp. 38-41 ◽  
Author(s):  
R. J. RADWAŃSKI ◽  
J. J. M. FRANSE
Keyword(s):  
Magnetic Properties ◽  
Energy Level ◽  
Specific Heat ◽  
Ground State ◽  
Exchange Parameter ◽  
State Function ◽  
Hexagonal Symmetry ◽  
Energy Level Scheme ◽  
Schottky Type ◽  
Good Agreement

Particularities in the specific heat of UPd 2 Al 3, a λ-type of peak with a maximum at 14.5 K and a Schottky-type of peak with a broad maximum at 55 K, has been attributed to the 5f-subsystem of the U atoms. The U-5f contribution has been found to be described surprisingly well within a single-ion Hamiltonian that includes the charge multipolar (CMP) interactions and the antiferromagnetic (AF) exchange interaction between the U 3+ ions. The AF exchange parameter and the full set of the CMP parameters associated with the hexagonal symmetry have been evaluated. The energy-level scheme (ELS) of this Kramers ion is constructed. The ground-state function Γ8 of the 5f 3 electrons is highly anisotropic. This state results from higher-order charge multipolar interactions. Magnetic properties resulting from this scheme including the metamagnetic-like transition at 18 T, the strongly-reduced value for the U-ion moment and its field dependence are found to be in good agreement with experimental observations.

The magnetic properties of praseodymium metal

1963 ◽  
Vol 276 (1364) ◽  
pp. 39-50 ◽  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Simple Model ◽  
Specific Heat ◽  
Field Model ◽  
Hexagonal Symmetry ◽  
Crystal Fields ◽  
Magnetic Specific Heat ◽  
Crystal Field Parameters ◽  
Two Parameter

The magnetic properties of praseodymium metal are interpreted in term s of a simple model suggested by the crystal structure where alternate layers of ions are subjected to crystal fields of face-centred cubic and hexagonal symmetry. The crystal field parameters are found by fitting the magnetic specific heat anomaly, and the variation of the susceptibility with temperature can be explained using a two-parameter molecular field model. The exchange intemaction is predominantly ferromagnetic in sign. The origin of the hyperfine specific heat is discussed, and attributed to interaction effects, though these must be larger than can be accounted for by simple theoretical estimates.

Magneto-optic study of the magnetic properties of EuS films

Physica B+C ◽  
1977 ◽  
Vol 89 ◽  
pp. 59-62 ◽  
Author(s):  
H. Schewe ◽  
H. Hoffmann
Keyword(s):  
Magnetic Properties ◽  
Magneto Optic

scholarly journals Critical temperature and magnetic properties of new 2D lattice model with double hexagonal symmetry: Monte Carlo study

AIP Advances ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 015004
Author(s):  
Sufyan Naji ◽  
Mohammad N. Murshed ◽  
M. A. Ahlam ◽  
Mohamed E. El Sayed ◽  
Ahmed Samir ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Magnetic Properties ◽  
Critical Temperature ◽  
Lattice Model ◽  
Monte Carlo Study ◽  
Hexagonal Symmetry

Adsorption of Co and Ni on Graphene with a Double Hexagonal Symmetry: Electronic and Magnetic Properties

2014 ◽  
Vol 118 (9) ◽  
pp. 4924-4929 ◽  
Author(s):  
S. Naji ◽  
A. Belhaj ◽  
H. Labrim ◽  
M. Bhihi ◽  
A. Benyoussef ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Hexagonal Symmetry ◽  
Electronic And Magnetic Properties ◽  
Adsorption Of Co

AES and XPS Studies of the Chemical Effects at the Magneto-Optic/Dielectric Interface

1985 ◽  
Vol 54 ◽  
Author(s):  
D. Coulman ◽  
T. Anthony
Keyword(s):  
Magnetic Properties ◽  
Oxygen Content ◽  
Chemical Stability ◽  
Preferential Oxidation ◽  
Dielectric Interface ◽  
Depth Profiles ◽  
Chemical Effects ◽  
Layer Structures ◽  
Sputter Deposited ◽  
Magneto Optic

ABSTRACTThe chemical stability of magneto-optic structures of sputter-deposited SiO, SiO2, or Si3N4/TbFeCo/SiO, SiO2, or Si3N4 was studied in detail. The degradation of the magnetic properties of the TbFeCo film have been correlated with the oxygen content within the film as determined by Auger and RBS. Auger and XPS depth profiles have revealed that for oxygen containing dielectrics the preferential oxidation of terbium is responsible for the observed differences in coercivity. Reduction of the dielectric at the SiO/TbFeCo interface, along with diffusion of oxygen into the RETM film, have been observed. The Si3N4/TbFeCo structure shows no evidence of either interdiffusion between the layers or oxidation of the TbFeCo film. From our investigation we conclude that Si3N4 is a superior dielectric for quadri layer structures in magneto-optic media.

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