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On Curie temperature of B20-MnSi films [PDF]

open access: yesScientific Reports, 2022
B20-type MnSi is the prototype magnetic skyrmion material. Thin films of MnSi show a higher Curie temperature than their bulk counterpart. However, it is not yet clear what mechanism leads to the increase of the Curie temperature.
Zichao Li   +7 more
doaj   +6 more sources

Determining Curie temperatures in dilute ferromagnetic semiconductors: High Curie temperature (Ga,Mn)As [PDF]

open access: yesApplied Physics Letters, 2014
In this paper, we use simultaneous magnetometry and electrical transport measurements to critically examine ways in which the Curie temperature (TC) values have been determined in studies of dilute magnetic semiconductors. We show that, in sufficiently homogeneous samples, TC can be accurately determined from remanent magnetization and magnetic ...
Bryan Gallagher   +2 more
exaly   +3 more sources

Computing Curie temperature of two-dimensional ferromagnets in the presence of exchange anisotropy

open access: yesPhysical Review Research, 2021
We compare three first-principles methods of calculating the Curie temperature in two-dimensional (2D) ferromagnetic materials (FM), modeled using the Heisenberg model, and propose a simple formula for estimating the Curie temperature with high accuracy ...
Sabyasachi Tiwari   +4 more
doaj   +1 more source

Tunnel Spin-Polarization of Ferromagnetic Metals and Ferrimagnetic Oxides and Its Effect on Tunnel Magnetoresistance

open access: yesElectronic Materials, 2022
This work presents an examination and unification of fragmented data on spin polarization in half-metallic, ferrimagnetic oxides. It also includes well understood ferromagnetic metals for comparison.
Gunnar Suchaneck
doaj   +1 more source

Electrical resistivity‐temperature characteristics enhancement of insulating cross‐linked polyethylene composites by incorporating positive temperature coefficient particles with different Curie temperatures

open access: yesHigh Voltage, 2023
Incorporating positive temperature coefficient (PTC) ceramic particles into polymers provides a prospective alternative solution for suppressing severe electric field distortions caused by negative temperature coefficient (NTC) of electrical resistivity ...
Guimin Jiang   +6 more
doaj   +1 more source

Full Variation of Site Substitution in Ni-Mn-Ga by Ferromagnetic Transition Metals

open access: yesMetals, 2021
Systematic doping by transition elements Fe, Co and Ni on each site of Ni2MnGa alloy reveal that in bulk material the increase in martensitic transformation temperature is usually accompanied by the decrease in ferromagnetic Curie temperature, and vice ...
Vít Kopecký   +4 more
doaj   +1 more source

Room-temperature intrinsic ferromagnetism in epitaxial CrTe2 ultrathin films

open access: yesNature Communications, 2021
The emergence of two dimensional ferromagnetism suffers from an inherent fragility to thermal fluctuations, which typically restricts the Curie temperature to below room temperature.
Xiaoqian Zhang   +16 more
doaj   +1 more source

THE EFFECT OF COBALT CONTENT ON MAGNETIC PROPERTIES OF CoFe ALLOYS

open access: yesSpektra: Jurnal Fisika dan Aplikasinya, 2020
Hard Disk Drive (HDD) as a data storage device when operated with high temperatures (around 66oC), its function will be constrained. The CoFe alloys have a large coercivity field and can be patterned in very small sizes that are suitable for HDD devices.
Widia Nursiyanto   +3 more
doaj   +1 more source

Microstructural and dielectrical characterization of Ho doped BaTiO3 ceramics [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2014
The Ho doped BaTiO3 ceramics, with different Ho2O3 content, ranging from 0.01 to 1.0 wt % Ho, were investigated regarding their microstructural and dielectric characteristics.
Marjanović Miloš   +3 more
doaj   +1 more source

Effect of donor and acceptor dopants on the microstructure and dielectric properties of barium titanate based ceramics [PDF]

open access: yesScience of Sintering, 2022
This paper examined the microstructural and dielectric characteristics of BaTiO3 - based ceramics of the general formula BaTi1-x-yNbxMnyO3. The concentration of Mn as acceptor was variable 0.01 and 0.05 at%, while the donor (Nb) was fixed at 0.5
Paunović Vesna   +2 more
doaj   +1 more source

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