Hydrogen-Intercalated 2D Magnetic Bilayer: Controlled Magnetic Phase Transition and Half-Metallicity via Ferroelectric Switching

2021 ◽  
Author(s):  
Lei Zhang ◽  
Cheng Tang ◽  
Stefano Sanvito ◽  
Yuantong Gu ◽  
Aijun Du
Keyword(s):  
Phase Transition ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Half Metallicity ◽  
Ferroelectric Switching

Electronic Properties and Magnetic Phase Transition in Half-Heusler Compound Fe1-XCuxMnSb

2012 ◽  
Vol 479-481 ◽  
pp. 403-406
Author(s):  
Bo Wu ◽  
Xiu De Yang ◽  
Song Zhang
Keyword(s):  
Phase Transition ◽  
Magnetic Phase Transition ◽  
Density Functional ◽  
Large Deviation ◽  
Magnetic Phase ◽  
Magnetic Coupling ◽  
Ferromagnetic State ◽  
Ferromagnetic Phase ◽  
Half Metallicity ◽  
Heusler Compound

By using the first-principles calculations within the density functional theory (DFT), we investigate the structure, antiferromagnetic-ferromagnetic phase transition and half-metallicity of half-Heusler compound Fe1-XCuxMnSb. For the ferromagnetic state, the calculated lattice constant follows the Vegard law, and total ferromagnetic moment agrees with Slater-Pauling rule as x<0.5 while suffers large deviation as x>0.5. As x=0.75, a novel magnetic phase transition occurs, which mainly derives from the competition between RKKY and superexchange magnetic coupling. Further analyses on density of states (DOS) reveal that the Fermi level can be adjusted by doped Cu concentration in ferromagnetic state, and d partial DOS of Mn atoms with different spin orientation compensate for each other that results in symmetric spin-up and spin-down band in antiferromagnetic state.

scholarly journals Study of physical properties of a ferrimagnetic spinel Cu1.5Mn1.5O4: spin dynamics, magnetocaloric effect and critical behavior

RSC Advances ◽  
2021 ◽  
Vol 11 (41) ◽  
pp. 25664-25676
Author(s):  
Abir Hadded ◽  
Jalel Massoudi ◽  
Sirine Gharbi ◽  
Essebti Dhahri ◽  
A. Tozri ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Physical Properties ◽  
Magnetocaloric Effect ◽  
Phase Transition Temperature ◽  
Magnetic Phase Transition ◽  
Critical Behavior ◽  
Magnetic Phase ◽  
Spin Dynamics ◽  
Critical Behaviour

The present work reports a detailed study of the spin dynamics, magnetocaloric effect and critical behaviour near the magnetic phase transition temperature, of a ferrimagnetic spinel Cu1.5Mn1.5O4.

First-order magnetic phase transition in layered Sr3YCo4O10.5 + δ-type cobaltites

JETP Letters ◽  
2012 ◽  
Vol 94 (12) ◽  
pp. 849-852 ◽  
Author(s):  
I. O. Troyanchuk ◽  
M. V. Bushinsky ◽  
V. M. Dobryanskii ◽  
N. V. Pushkarev
Keyword(s):  
Phase Transition ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
First Order ◽  
Order Magnetic Phase Transition
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