Magnetic Phase Diagram of a Generalized Kondo Lattice Model with Classical Localized Spins

1996 ◽  
Vol 65 (2) ◽  
pp. 552-559 ◽  
Author(s):  
Minoru Hamada ◽  
Hiroshi Shimahara
Keyword(s):  
Phase Diagram ◽  
Lattice Model ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Kondo Lattice ◽  
Kondo Lattice Model

scholarly journals Anisotropic magnetic phase diagram of the Kondo-lattice compoundCe3Pd20Ge6:Observation of antiferromagnetic and quadrupolar ordering

1998 ◽  
Vol 57 (13) ◽  
pp. 7450-7453 ◽  
Author(s):  
J. Kitagawa ◽  
N. Takeda ◽  
M. Ishikawa ◽  
T. Yoshida ◽  
A. Ishiguro ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Kondo Lattice

Phase Diagram of the Two-Channel Kondo Lattice Model in One Dimension

2005 ◽  
Vol 94 (14) ◽  
Author(s):  
T. Schauerte ◽  
D. L. Cox ◽  
R. M. Noack ◽  
P. G. J. van Dongen ◽  
C. D. Batista
Keyword(s):  
Phase Diagram ◽  
Lattice Model ◽  
Kondo Lattice ◽  
One Dimension ◽  
Kondo Lattice Model

scholarly journals ON THE POSSIBILITY OF FERROMAGNETISM AND HALF-METALLICITY IN LOCAL MOMENT SYSTEMS

2011 ◽  
Vol 25 (20) ◽  
pp. 1701-1712
Author(s):  
L. HARITHA ◽  
G. GANGADHAR REDDY ◽  
A. RAMAKANTH
Keyword(s):  
Magnetic Phase ◽  
Spontaneous Magnetization ◽  
Magnetic Phase Diagram ◽  
Magnetic Ordering ◽  
Kondo Lattice ◽  
Local Moment ◽  
Itinerant Electron ◽  
Half Metallicity ◽  
Half Metal ◽  
Kondo Lattice Model

We use the Kondo lattice model to investigate the possibility of ferromagnetism and half-metallicity in local moment systems. Using the spectral density approach and making use of the fact that the spontaneous magnetization of local moment and the itinerant electron polarization are coupled, we derive an expression for the paramagnetic susceptibility. The magnetic ordering temperature is determined from the singularities of the susceptibility. The magnetic phase diagram is constructed in T - n (band filling) plane. It is found that ferromagnetism is possible only for small values of n. It is also found that the temperature drives the transition of the system from half-metal to metal.

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