scholarly journals Driving the polar spin reorientation transition of ultrathin ferromagnets with antiferromagnetic–ferromagnetic phase transition of nearby FeRh alloy film

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
P. Dróżdż ◽  
M. Ślęzak ◽  
W. Janus ◽  
M. Szpytma ◽  
H. Nayyef ◽  
...  
Keyword(s):  
Phase Transition ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Ferromagnetic Layer ◽  
Magnetic Coupling ◽  
Alloy Film ◽  
Spin Reorientation ◽  
Ferromagnetic Phase ◽  
Ferromagnetic Phase Transition ◽  
The Impact

Abstract We show that in-plane to out-of-plane magnetization switching of a ferromagnetic layer can be driven by antiferromagnetic–ferromagnetic phase transition in a nearby FeRh system. For FeRh/Au/FeAu trilayers, the impact of the magnetic phase transition of FeRh onto the perpendicular magnetization of monoatomic FeAu superlattices is transferred across the Au spacer layer via interlayer magnetic coupling. The polar spin reorientation process of the FeAu spins driven by the magnetic phase transition in the FeRh reveals its major features; namely it is reversible and displays hysteresis.

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 Spin-reorientation magnetic transitions in Mn-doped SmFeO3

IUCrJ ◽  
2017 ◽  
Vol 4 (5) ◽  
pp. 598-603 ◽  
Author(s):  
Jian Kang ◽  
Yali Yang ◽  
Xiaolong Qian ◽  
Kai Xu ◽  
Xiaopeng Cui ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Magnetization Vector ◽  
Spin Reorientation ◽  
Antiferromagnetic Order ◽  
Spin Configuration ◽  
Crystallographic Axes ◽  
Mn Doped

Spin reorientation is a magnetic phase transition in which rotation of the magnetization vector with respect to the crystallographic axes occurs upon a change in the temperature or magnetic field. For example, SmFeO3shows a magnetization rotation from thecaxis above 480 K to theaaxis below 450 K, known as the Γ4→ Γ2transition. This work reports the successful synthesis of the new single-crystal perovskite SmFe0.75Mn0.25O3and finds interesting spin reorientations above and below room temperature. In addition to the spin reorientation of the Γ4→ Γ2magnetic phase transition observed at aroundTSR2= 382 K, a new spin reorientation, Γ2→ Γ1, was seen at aroundTSR1= 212 K due to Mn doping, which could not be observed in the parent rare earth perovskite compound. This unexpected spin configuration has complete antiferromagnetic order without any canting-induced weak ferromagnetic moment, resulting in zero magnetization in the low-temperature regime.M–TandM–Hmeasurements have been made to study the temperature and magnetic-field dependence of the observed spin reorientation transitions.

Strain modulated ferromagnetic phase transitions in monolayer FeCl2 through exchange competitions: the first-principle and Monte Carlo simulations

2020 ◽  
Vol 22 (30) ◽  
pp. 17291-17298
Author(s):  
Ya Yang ◽  
Peiyin Guo ◽  
Yongsong Luo
Keyword(s):  
Phase Transition ◽  
Monte Carlo ◽  
Phase Transitions ◽  
Monte Carlo Simulations ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Ferromagnetic Phase ◽  
First Principle

Strain drives the magnetic phase transition of 1T-FeCl2 through exchange competitions.

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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