scholarly journals Role of dipolar interactions in a system of Ni nanoparticles studied by magnetic susceptibility measurements

2009 ◽  
Vol 80 (18) ◽  
Author(s):  
S. H. Masunaga ◽  
R. F. Jardim ◽  
P. F. P. Fichtner ◽  
J. Rivas
Keyword(s):  
Magnetic Susceptibility ◽  
Ni Nanoparticles ◽  
Dipolar Interactions

Role of Dipolar Interactions on the Thermal Stability of High-Density Bit-Patterned Media

2012 ◽  
Vol 3 ◽  
pp. 4500204-4500204 ◽  
Author(s):  
N. Eibagi ◽  
J. J. Kan ◽  
F. E. Spada ◽  
E. E. Fullerton
Keyword(s):  
Thermal Stability ◽  
High Density ◽  
Dipolar Interactions ◽  
Bit Patterned Media ◽  
Patterned Media ◽  
Thermal Stability Of

Lorentz microscopy sheds light on the role of dipolar interactions in magnetic hyperthermia

Nanoscale ◽  
2015 ◽  
Vol 7 (17) ◽  
pp. 7717-7725 ◽  
Author(s):  
M. Campanini ◽  
R. Ciprian ◽  
E. Bedogni ◽  
A. Mega ◽  
V. Chiesi ◽  
...  
Keyword(s):  
Magnetic Hyperthermia ◽  
Dipolar Interactions ◽  
Magnetic Characterization ◽  
Lorentz Microscopy

Left: morphological and magnetic characterization of magnetite NPs. Right: Lorentz microscopy unveils the role of dipolar interactions in magnetic hyperthermia of superparamagnetic NPs.

Evaluation of the Role of Au in Improving Catalytic Activity of Ni Nanoparticles for the Formation of One-Dimensional Carbon Nanostructures

Nano Letters ◽  
2011 ◽  
Vol 11 (6) ◽  
pp. 2464-2471 ◽  
Author(s):  
Renu Sharma ◽  
See-Wee Chee ◽  
Andrew Herzing ◽  
Ryan Miranda ◽  
Peter Rez
Keyword(s):  
Catalytic Activity ◽  
Carbon Nanostructures ◽  
Ni Nanoparticles ◽  
One Dimensional

scholarly journals Increase in the magnitude of the energy barrier distribution in Ni nanoparticles due to dipolar interactions

2011 ◽  
Vol 98 (1) ◽  
pp. 013110 ◽  
Author(s):  
S. H. Masunaga ◽  
R. F. Jardim ◽  
R. S. Freitas ◽  
J. Rivas
Keyword(s):  
Energy Barrier ◽  
Ni Nanoparticles ◽  
Dipolar Interactions ◽  
Barrier Distribution

The Role of Dipolar Interactions in AFC-Media

2004 ◽  
Vol 40 (4) ◽  
pp. 2437-2439
Author(s):  
A. Berger ◽  
A. Moser ◽  
D.T. Margulies
Keyword(s):  
Dipolar Interactions

HIGH-TEMPERATURE OXIDE SUPERCONDUCTORS: STRUCTURE, STOICHIOMETRY AND THE MECHANISM OF SUPERCONDUCTIVITY

1987 ◽  
Vol 01 (03n04) ◽  
pp. 721-732 ◽  
Author(s):  
C.N.R. RAO
Keyword(s):  
Magnetic Susceptibility ◽  
Spectroscopic Studies ◽  
Oxide Superconductors ◽  
Magnetic Susceptibility Data ◽  
Susceptibility Data ◽  
High Temperature Oxide ◽  
Temperature Oxide ◽  
Mechanism Of Superconductivity ◽  
Superconducting Oxides

Magnetic susceptibility data show La2CuO4 to be antiferromagnetic. Oxides of the K2NiF4 structure of the general formula (La1−y Lny)2−x Srx(Bax)CuO4 show superconductivity in the 15-40K range, the Tc becoming maximum at a specific value of x or of the a-parameter. Superconductivity in La3−xBa3+xCu6O14 and La4−xBa1+xCu5O13 systems has been investigated besides that in the Y-Ba-Cu-O system. Role of oxygen in the superconductivity of YBa2Cu3O7−δ is discussed. The problem of rationalizing macro and microstructures of YBa2Cu3O7−δ is indicated. Infrared spectra of the superconducting oxides and their marginal metallicity in the normal state are examined. Based on electron spectroscopic studies, it is shown that holes are likely to be on oxygen rather than on copper, giving rise to peroxide-like species; Copper is present in the 1+ state (besides the 2+ state).

DC Magnetic Susceptibility of CeCoGe2.36Si0.64 under High Pressure

2012 ◽  
Vol 190 ◽  
pp. 405-408
Author(s):  
J.J. Larrea ◽  
J. Teyssier ◽  
H. Ronnow ◽  
M. Müller ◽  
A. Sidorenko ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnetic Susceptibility ◽  
Heavy Fermion ◽  
Pressure Range ◽  
Magnetic Phase ◽  
Ambient Pressure ◽  
Quantum Critical Point ◽  
Magnetic Phase Diagram ◽  
Antiferromagnetic Order

We report an investigation of the magnetic phase diagram of the heavy fermion com-pound CeCoGe2.36Si0.64 using DC magnetic susceptibility measurements under high pressure upto 10 kbar. The antiferromagnetic order that develops at ambient pressure below about 5.5 Kremains essentially unaffected by pressure in the investigated pressure range up to 10 kbar. Onthe other hand, moderate magnetic fields appear to induce a quantum critical point in a sam-ple subject to a pressure of 2 kbar. We discuss the role of disorder in the series of compoundsCeCoGe3−xSix.

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