Electron holography study of the temperature variation of the magnetic order parameter within circularly chained nickel nanoparticle rings

2007 ◽  
Vol 91 (26) ◽  
pp. 262513 ◽  
Author(s):  
Akira Sugawara ◽  
Kei-ichi Fukunaga ◽  
M. R. Scheinfein ◽  
H. Kobayashi ◽  
H. Kitagawa ◽  
...  
Keyword(s):  
Temperature Variation ◽  
Order Parameter ◽  
Magnetic Order ◽  
Electron Holography ◽  
Nickel Nanoparticle ◽  
Magnetic Order Parameter

Magnetic order parameter in the perovskite system CaMn 7 O 12

2002 ◽  
Vol 74 (0) ◽  
pp. s1731-s1733 ◽  
Author(s):  
R. Przenios?o ◽  
I. Sosnowska ◽  
E. Suard ◽  
T. Hansen
Keyword(s):  
Order Parameter ◽  
Magnetic Order ◽  
Magnetic Order Parameter

scholarly journals Coexistence of superconductivity and magnetism inCa1−xNaxFe2As2: Universal suppression of the magnetic order parameter in 122 iron pnictides

2015 ◽  
Vol 92 (13) ◽  
Author(s):  
Philipp Materne ◽  
Sirko Kamusella ◽  
Rajib Sarkar ◽  
Til Goltz ◽  
Johannes Spehling ◽  
...  
Keyword(s):  
Order Parameter ◽  
Magnetic Order ◽  
Iron Pnictides ◽  
Magnetic Order Parameter

scholarly journals Macroscopic degeneracy and order in the 3D plaquette Ising model

2015 ◽  
Vol 29 (20) ◽  
pp. 1550109 ◽  
Author(s):  
Desmond A. Johnston ◽  
Marco Mueller ◽  
Wolfhard Janke
Keyword(s):  
Low Temperature ◽  
Magnetic Order ◽  
Finite Size ◽  
Temperature Phase ◽  
Finite Size Scaling ◽  
First Order ◽  
Magnetic Order Parameter ◽  
First Order Transition ◽  
Definition Of ◽  
Low Temperature Phase

The purely plaquette 3D Ising Hamiltonian with the spins living at the vertices of a cubic lattice displays several interesting features. The symmetries of the model lead to a macroscopic degeneracy of the low-temperature phase and prevent the definition of a standard magnetic order parameter. Consideration of the strongly anisotropic limit of the model suggests that a layered, “fuki-nuke” order still exists and we confirm this with multi-canonical simulations. The macroscopic degeneracy of the low-temperature phase also changes the finite-size scaling corrections at the first-order transition in the model and we see this must be taken into account when analyzing our measurements.

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