Thermomagnetic convection
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Energy-harvesting materials based on the anomalous Nernst effect Open
The anomalous Nernst effect (ANE), one of the thermomagnetic effects studied for a long time, has recently attracted renewed attention. The ANE, which originates from fictitious fields in momentum space, is essential for clarifying the int…
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Magnonic topological insulators in antiferromagnets Open
Extending the notion of symmetry protected topological phases to insulating\nantiferromagnets (AFs) described in terms of opposite magnetic dipole moments\nassociated with the magnetic N$\\acute{{\\rm{e}}} $el order, we establish a\nbosoni…
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Inverse magnetic catalysis in the linear sigma model with quarks Open
We compute the critical temperature for the chiral transition in the background of a magnetic field in the linear sigma model, including the quark contribution and the thermo-magnetic effects induced on the coupling constants at one loop l…
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Low-grade waste heat recovery scenarios: Pyroelectric, thermomagnetic, and thermogalvanic thermal energy harvesting Open
Identifying reliable and sustainable sources of electricity is a significant challenge of the present time. However, most energy-generation mechanisms produce unavoidable low-grade waste heat as a byproduct while harvesting (or converting)…
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Thermomagnetic evolution of the QCD strong coupling Open
We study the one-loop gluon polarization tensor at zero and finite\ntemperature in the presence of a magnetic field, to extract the thermo-magnetic\nevolution of the strong coupling $\\alpha_s$. We analyze four distinct regimes,\nto wit, t…
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Direct visualization of the thermomagnetic behavior of pseudo–single-domain magnetite particles Open
In situ electron microscopy is used to visualize the thermomagnetic behavior of vortex domain states within magnetic minerals.
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Free-Spin Dominated Magnetocaloric Effect in Dense Gd<sup>3+</sup> Double Perovskites Open
Frustrated lanthanide oxides with dense magnetic lattices are of fundamental interest for their potential in cryogenic refrigeration due to a large ground state entropy and suppressed ordering temperatures but can often be limited by short…
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Maximum screening fields of superconducting multilayer structures Open
It is shown that a multilayer comprised of alternating thin superconducting and insulating layers on a thick substrate can fully screen the applied magnetic field exceeding the superheating fields Hs of both the superconducting layers and …
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Anisotropy-Tuned Magnetic Order in Pyrochlore Iridates Open
The magnetic behavior of polycrystalline samples of Er(2)Ir(2)O(7) and Tb(2)Ir(2)O(7) pyrochlores is studied by magnetization measurements and neutron diffraction. Both compounds undergo a magnetic transition at 140 and 130 K, respectively…
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Finite temperature quark-gluon vertex with a magnetic field in the hard thermal loop approximation Open
We compute the thermo-magnetic correction to the quark-gluon vertex in the presence of a weak magnetic field within the Hard Thermal Loop approximation. The vertex satisfies a QED-like Ward identity with the quark self-energy. The only ver…
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Structural, thermomagnetic, and dielectric properties of Mn0.5Zn0.5GdxFe2−xO4 (x = 0, 0.025, 0.050, 0.075, and 0.1) Open
In this paper, effect of Gd3+ was investigated on structural, magnetic, and dielectric properties of Mn0.5Zn0.5Gd x Fe2−x O4(x = 0, 0.025, 0.050, 0.075, and 0.1) nanoparticles prepared by facile coprecipitation method. X-ray diffraction (X…
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Effect of homogeneous-heterogeneous reactions on ferrofluid in the presence of magnetic dipole along a stretching cylinder Open
This article characterizes the influence of magnetic dipole in a non-Newtonian ferrofluid. The flow is caused by an incompressible stretchable cylinder. The effects of homogeneous and heterogeneous reactions are taken into account. Heat fl…
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Effect of Magnetic Field on Natural Convection in a C-shaped Cavity Filled with Ferrofluid Open
In this paper, natural convection heat transfer has been analyzed for a C-shaped cavity filled with ferrofluid. Cobalt-kerosene ferrofluid is selected here for different solid volume fractions (φ = 0 ∼ 0.15). Galerkin weighted residual met…
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Nonequilibrium thermodynamics of the spin Seebeck and spin Peltier effects Open
We study the problem of magnetization and heat currents and their associated\nthermodynamic forces in a magnetic system by focusing on the magnetization\ntransport in ferromagnetic insulators like YIG. The resulting theory is applied\nto t…
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Large magnetocaloric effect in fine Gd2O3 nanoparticles embedded in porous silica matrix Open
The magnetocaloric properties of a composite material consisting of isolated Gd2O3 nanoparticles with a diameter of 6–8 nm embedded in the pores of a mesoporous silica matrix have been studied. The fascinating nanostructure and composition…
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Magnetocaloric effect of LaFe <sub>11.35</sub> Co <sub>0.6</sub> Si <sub>1.05</sub> alloy Open
The aim of the present paper was to study the large magnetocaloric effect observed in LaFe 11.35 Co 0.6 Si 1.05 alloy. X‐ray diffraction (XRD) result reveals a coexistence of two crystalline phases: a dominant La(Fe,Si) 13 ‐type and a mino…
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Magnetic, transport, and magnetocaloric properties of boron doped Ni-Mn-In alloys Open
The impact of B substitution in Ni50Mn35In15−xBx Heusler alloys on the structural, magnetic, transport, and parameters of the magnetocaloric effect (MCE) has been studied by means of room-temperature X-ray diffraction and thermomagnetic me…
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Disordering of the vortex lattice through successive destruction of positional and orientational order in a weakly pinned Co0.0075NbSe2 single crystal Open
The vortex lattice in a Type II superconductor provides a versatile model system to investigate the order-disorder transition in a periodic medium in the presence of random pinning. Here, using scanning tunnelling spectroscopy in a weakly …
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Thermomagnetic properties and magnetocaloric effect of FeCoNiCrAl-type high-entropy alloys Open
In this work, we investigate the effects of substituting Ni/Al for Cr on the thermomagnetic and magnetocaloric properties of FeCoNiCrAl-type high entropy alloys (HEAs). Ni and Al appear to prefer the BCC phase, and increases in the Al comp…
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Suppression of the Biermann Battery and Stabilization of the Thermomagnetic Instability in Laser Fusion Conditions Open
Magnetic field generated by the Biermann battery is thought to be one of the principal mechanisms behind the inhibition of heat flow in laser-plasma interactions, and is predicted to grow exponentially in some contexts due to the thermomag…
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Review of the impact of the external magnetic field on the characteristics of magnetic nanofluids Open
The emergence of nanofluids as high-efficiency thermal transfer media has piqued the curiosity of heat transfer researchers. Nanomaterial has since been used in a variety of industries, including manufacturing, electronics and electrical s…
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Magnetic flux penetration in Nb superconducting films with lithographically defined microindentations Open
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Thermomagnetic properties of the strong coupling in the local Nambu–Jona-Lasinio model Open
We study the thermo-magnetic properties of the strong coupling constant G and\nquark mass M entering the Nambu-Jona-Lasinio model. For this purpose, we\ncompute the quark condensate and compare it to lattice QCD (LQCD) results to\nextract …
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Thermomagnetic Behavior of Magnetic Susceptibility—Heating Rate and Sample Size Effects Open
Thermomagnetic analysis of magnetic susceptibility k(T) was carried out for a number of natural powder materials from soils, baked clay and anthropogenic dust samples using fast (11oC/min) and slow (6.5oC/min) heating rates available in th…
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Linear thermomagnetic energy harvester for low-grade thermal energy harvesting Open
Low-grade thermal energy, either from waste heat or from natural resources, constitutes an enormous energy reserve that remains to be fully harvested. Harvesting low-grade heat is challenging because of the low Carnot efficiency. Among var…
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Selective triggering of magnetic flux avalanches by an edge indentation Open
We numerically investigate the effect of an edge indentation on the threshold field of thermomagnetic instabilities in superconducting films subjected to a ramping magnetic field, applied perpendicular to the plane of the film. In particul…
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Nucleation and propagation of thermomagnetic avalanches in thin-film superconductors (Review Article) Open
Stability of the vortex matter—magnetic flux lines penetrating into the material—in type-II superconductor films is crucially important for their application. If some vortices get detached from pinning centres, the energy dissipated by the…
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Cooling rate effect on thermoremanent magnetization in archaeological baked clays: an experimental study on modern bricks Open
International audience
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Thermomagnetic properties and its effects on Fisher entropy with Schioberg plus Manning-Rosen potential (SPMRP) using Nikiforov-Uvarov functional analysis (NUFA) and supersymmetric quantum mechanics (SUSYQM) methods Open
Thermomagnetic properties, and its effects on Fisher information entropy with Schioberg plus Manning-Rosen potential are studied using NUFA and SUSYQM methods in the presence of the Greene-Aldrich approximation scheme to the centrifugal te…
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Quantitative TEM imaging of the magnetostructural and phase transitions in FeRh thin film systems Open
Equi-atomic FeRh is a very interesting material as it undergoes a magnetostructural transition from an antiferromagnetic (AF) to a ferromagnetic (FM) phase between 75–105 °C. Its ability to present phase co-existence separated by domain wa…