Precisely tunable magnetic phase transition temperature, TC, through the formation of a molecular alloy in [NixPt1−x(mnt)2]−-based spin systems (mnt2− = maleonitriledithiolate, x = 0.09–0.91)

2014 ◽  
Vol 43 (31) ◽  
pp. 11908-11914 ◽  
Author(s):  
Guo-Jun Yuan ◽  
Hao Yang ◽  
Shao-Xian Liu ◽  
Jian-Lan Liu ◽  
Xiao-Ming Ren
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Magnetic Transition ◽  
Molar Fraction ◽  
Spin Systems ◽  
Transition System

A magnetic transition system with a precisely tunable TC was achieved through the formation of a molecular alloy, and TC is linearly correlated with the molar fraction x.

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.

PHASE TRANSITIONS IN INSULATING VANADIUM OXIDE

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3338-3338 ◽  
Author(s):  
A. JOSHI ◽  
M. MA ◽  
F. C. ZHANG
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Magnetic Transition ◽  
Magnetic Ordering ◽  
Orbital Ordering ◽  
First Order ◽  
Bond Model ◽  
Orbital Phase

The magnetic phase transition from the paramagnetic to antiferromagnetic state in insulating V2O3 shows some very interesting features. Not only is the magnetic order ng pattern anomalous, but the magnetic transition shows other surprises: I) the magnetic and orbital ordering occur at the same transition temperature; II) the transition is strongly first order; III) above the transition temperature, neutron scattering observes features in wave vectors different from the ordering wave vector. We study this system using the recently proposed S = 2 bond model (Phys. Rev. Lett.85, 1714 (2000)) for insulating V2O3. We show that this model not only explains the anomalous magnetic ordering, but also resolves the other questions associated with the magnetic phase transition (Phys. Rev. Lett.86, 5743 (2001)). We further point out the possibility of changes in the phase transition phenomenology in presence of a magnetic field, and another orbital phase transition at lower temperatures.

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