Field-induced magnetic phase transitions in ferrimagnet GdMn2Ge2: H - T magnetic phase diagrams

2000 ◽  
Vol 7 (2) ◽  
pp. 107-110
Author(s):  
Guang-hua Guo ◽  
R. Z. Levitin ◽  
N. P. Kolmakova
Keyword(s):  
Phase Transitions ◽  
Phase Diagrams ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions ◽  
Magnetic Phase Diagrams

Magnetic Phase Transitions in La1-xRxMn2Si2 (R=Gd, Tb, Dy) Compounds

2012 ◽  
Vol 190 ◽  
pp. 171-174 ◽  
Author(s):  
E.G. Gerasimov ◽  
N.V. Mushnikov ◽  
V.S. Gaviko
Keyword(s):  
Phase Transitions ◽  
Phase Diagrams ◽  
Magnetic Measurements ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions ◽  
Magnetic Structures ◽  
Easy Direction ◽  
Irreversible Magnetization ◽  
Magnetization Processes ◽  
Magnetic Phase Diagrams

Magnetic properties of the La1xRxMn2Si2 (R is Gd, Tb, Dy; 0 x 1) compounds were investigated using magnetic measurements on quasi-single crystals. The x-T concentration magnetic phase diagrams are constructed. All obtained x-T magnetic phase diagrams are found to be similar. Six magnetic structures are realized in the compounds at different concentrations x. It was shown that all the compounds have strong magnetic anisotropy with the c-axis as the easy direction. For the compounds with x = 0.2, the irreversible magnetization processes are observed which can be attributed to the existence of a compensation point at which the R and Mn magnetic sublattices compensate each other. The nature of various spontaneous and field-induced phase transitions is also discussed.

Magnetic phase transitions and phase diagrams of DyMn2Ge2

2001 ◽  
Vol 93 (4) ◽  
pp. 796-804 ◽  
Author(s):  
Guo Guanghua ◽  
M. V. Eremin ◽  
A. Kirste ◽  
N. P. Kolmakova ◽  
A. S. Lagutin ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Phase Diagrams ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions

Phase Diagrams of Ni2MnX (X = In, Sn, Sb) Heusler Alloys with Inversion of Exchange Interaction

2008 ◽  
Vol 583 ◽  
pp. 131-146 ◽  
Author(s):  
Vasiliy D. Buchelnikov ◽  
Sergey Taskaev ◽  
M.A. Zagrebin ◽  
Peter Entel
Keyword(s):  
Free Energy ◽  
Phase Transitions ◽  
Exchange Interaction ◽  
Phase Diagrams ◽  
Magnetic Phase ◽  
Landau Theory ◽  
Heusler Alloys ◽  
Magnetic Phase Transitions ◽  
Experimental Phase ◽  
Ginzburg Landau

In this work with the help of the phenomenological Ginzburg-Landau theory of structural and magnetic phase transitions the phase diagrams of Heusler Ni-Mn-X (X = In, Sn, Sb) alloys with the inversion of exchange interaction are investigated. The investigation shows that the type of the phase diagrams in Heusler Ni-Mn-X (X = In, Sn, Sb) alloys depends on the value and sign of the free energy parameters. As it is seen from the analysis of the phase diagrams with the determined values and signs of the parameters of Landau functional there are thermodynamic paths which allow to explain experimental phase transitions in Heusler alloys Ni-Mn-X (X = In, Sn, Sb) and Ni-Co- Mn-X (X = In, Sn, Sb) qualitatively.

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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