Magnetic phase transitions in itinerant electron system

1982 ◽  
Vol 43 (4) ◽  
pp. 681-683 ◽  
Author(s):  
M. Shimizu
Keyword(s):  
Phase Transitions ◽  
Magnetic Phase ◽  
Electron System ◽  
Magnetic Phase Transitions ◽  
Itinerant Electron

MAGNETIC PHASE TRANSITIONS IN Ce(Fe1–xCox)2 SYSTEM

1993 ◽  
Vol 07 (01n03) ◽  
pp. 822-825 ◽  
Author(s):  
NAUSHAD ALI ◽  
XIANFENG ZHANG
Keyword(s):  
Phase Transitions ◽  
Magnetic Phase ◽  
Ac Susceptibility ◽  
Magnetic Phase Diagram ◽  
Ferromagnetic State ◽  
Magnetic Phase Transitions ◽  
Itinerant Electron ◽  
Electron Systems ◽  
First Order ◽  
First Order Transition

Re-entrant magnetic phase transitions in Ce(Fe1–xMx)2 systems (where M=Al, Ru, Co, etc.) are being investigated by various research groups. It has been observed that the system goes from a paramagnetic to ferromagnetic state followed by an almost complete loss of magnetization as the temperature is lowered. We have done systematic experimental measurements of magnetization, ac susceptibility, electrical resistivity, and thermal expansion on the Ce(Fe1–xCox)2 system. It is found that as the temperature is decreased, the system goes from para- to ferro- to antiferro-magnetic phase. The ferro- to antiferro-magnetic phase transition is a first order transition. Our experimental results are consistent with the magnetic phase diagram predictions by Moriya and Usami's theory of strongly interacting itinerant electron systems.

TRANSPORT PROPERTIES OF Mn3−xCoxGaC (x≤0.12)

1993 ◽  
Vol 07 (01n03) ◽  
pp. 875-878 ◽  
Author(s):  
T. KANOMATA ◽  
H. HARADA ◽  
T. KANEKO
Keyword(s):  
Electrical Resistivity ◽  
Phase Transitions ◽  
Transport Properties ◽  
Thermoelectric Power ◽  
Magnetic Order ◽  
Magnetic Phase ◽  
Order Transition ◽  
Experimental Results ◽  
Magnetic Phase Transitions ◽  
Itinerant Electron

The electrical resistivity p and the thermoelectric power S of Mn3–xCoxGaC(x≤0.12) are studied to investigate the mechanism of the magnetic order-order transition. The ρ-T curves for samples with 0<x≤0.06 show the appearence of an intermediate magnetic phase. The experimental results suggest that the magnetic phase transitions of Mn3−xCoxGaC should be discussed in terms of itinerant electron magnetism.

scholarly journals Magnetic phase transitions in Eu( Co1−xNix)2−yAs2 single crystals

2020 ◽  
Vol 4 (8) ◽  
Author(s):  
N. S. Sangeetha ◽  
Santanu Pakhira ◽  
D. H. Ryan ◽  
V. Smetana ◽  
A.-V. Mudring ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Single Crystals ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions
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