Juan Carlos Wandemberg Boschetti Ph.D.’s Post

And yet the solenoidal property of magnetic fields is still valid; that is, ∇•B = 0 https://lnkd.in/dT9rfJip

Unusual magnetotransport behaviors such as temperature dependent negativemagnetoresistance(MR) and bowtie-shaped MR have puzzled us for a long time.Although several mechanisms have been proposed to explain them, the absence ofcomprehensive quantitative calculations has made these explanations lessconvincing. In our work, we introduce a methodology to study themagnetotransport behaviors in magnetic materials. This approach integratesanomalous Hall conductivity induced by Berry curvature, with a multi-bandordinary conductivity tensor, employing a combination of first-principlescalculations and semi-classical Boltzmann transport theory. Our methodincorporates both the temperature dependency of relaxation time and anomalousHall conductivity, as well as the field dependency of anomalous Hallconductivity. We initially test this approach on two-band models and then applyit to a Weyl semimetal CSS. The results, which align well with experimentalobservations in terms of magnetic field and temperature dependencies,demonstrate the efficacy of our approach. Additionally, we have investigatedthe distinct behaviors of magnetoresistance (MR) and Hall resistivities acrossvarious types of magnetic materials. This methodology provides a comprehensiveand efficient means to understand the underlying mechanisms of the unusualbehaviors observed in magneto-transport measurements in magnetic materials. #magnetotransport #magneticmaterials #Berrycurvature #anomalousHallconductivity #Weylsemimetal #magnetoresistance #Hallresistivity #firstprinciples #Boltzmanntransporttheory #magneticfield #temperaturedependent

Unusual magnetotransport behaviors such as temperature dependent negativemagnetoresistance(MR) and bowtie-shaped MR have puzzled us for a long time.Although several mechanisms have been proposed to explain them, the absence ofcomprehensive quantitative calculations has made these explanations lessconvincing. In our work, we introduce a methodology to study themagnetotransport behaviors in magnetic materials. This approach integratesanomalous Hall conductivity induced by Berry curvature, with a multi-bandordinary conductivity tensor, employing a combination of first-principlescalculations and semi-classical Boltzmann transport theory. Our methodincorporates both the temperature dependency of relaxation time and anomalousHall conductivity, as well as the field dependency of anomalous Hallconductivity. We initially test this approach on two-band models and then applyit to a Weyl semimetal CSS. The results, which align well with experimentalobservations in terms of magnetic field and temperature dependencies,demonstrate the efficacy of our approach. Additionally, we have investigatedthe distinct behaviors of magnetoresistance (MR) and Hall resistivities acrossvarious types of magnetic materials. This methodology provides a comprehensiveand efficient means to understand the underlying mechanisms of the unusualbehaviors observed in magneto-transport measurements in magnetic materials. #magnetotransport #magneticmaterials #anomalousHallconductivity #magnetoresistance #Boltzmanntransporttheory

Unusual magnetotransport behaviors such as temperature dependent negativemagnetoresistance(MR) and bowtie-shaped MR have puzzled us for a long time.Although several mechanisms have been proposed to explain them, the absence ofcomprehensive quantitative calculations has made these explanations lessconvincing. In our work, we introduce a methodology to study themagnetotransport behaviors in magnetic materials. This approach integratesanomalous Hall conductivity induced by Berry curvature, with a multi-bandordinary conductivity tensor, employing a combination of first-principlescalculations and semi-classical Boltzmann transport theory. Our methodincorporates both the temperature dependency of relaxation time and anomalousHall conductivity, as well as the field dependency of anomalous Hallconductivity. We initially test this approach on two-band models and then applyit to a Weyl semimetal CSS. The results, which align well with experimentalobservations in terms of magnetic field and temperature dependencies,demonstrate the efficacy of our approach. Additionally, we have investigatedthe distinct behaviors of magnetoresistance (MR) and Hall resistivities acrossvarious types of magnetic materials. This methodology provides a comprehensiveand efficient means to understand the underlying mechanisms of the unusualbehaviors observed in magneto-transport measurements in magnetic materials. #magnetotransport #magneticmaterials #anomalousHallconductivity #magnetoresistance #Boltzmanntransporttheory

Unusual magnetotransport behaviors such as temperature dependent negativemagnetoresistance(MR) and bowtie-shaped MR have puzzled us for a long time.Although several mechanisms have been proposed to explain them, the absence ofcomprehensive quantitative calculations has made these explanations lessconvincing. In our work, we introduce a methodology to study themagnetotransport behaviors in magnetic materials. This approach integratesanomalous Hall conductivity induced by Berry curvature, with a multi-bandordinary conductivity tensor, employing a combination of first-principlescalculations and semi-classical Boltzmann transport theory. Our methodincorporates both the temperature dependency of relaxation time and anomalousHall conductivity, as well as the field dependency of anomalous Hallconductivity. We initially test this approach on two-band models and then applyit to a Weyl semimetal CSS. The results, which align well with experimentalobservations in terms of magnetic field and temperature dependencies,demonstrate the efficacy of our approach. Additionally, we have investigatedthe distinct behaviors of magnetoresistance (MR) and Hall resistivities acrossvarious types of magnetic materials. This methodology provides a comprehensiveand efficient means to understand the underlying mechanisms of the unusualbehaviors observed in magneto-transport measurements in magnetic materials. #magnetotransport #magneticmaterials #Berrycurvature #anomalousHallconductivity #Weylsemimetal #magnetoresistance #Hallresistivity #firstprinciples #Boltzmanntransporttheory #magneticfield #temperaturedependent

Our recent work is out now! Here we've shown that the effect of inter-layer interaction in case of Bulk MoS2 not only affects the near band-edge states, but extends to higher energies also. More specifically, we give evidence for the existence of a spin-orbit split, B-like inter-layer exciton. This was theoretically predicted few years back, our measurements give first experimental evidence for this. #researchpaper #researchpublication #opticalspectroscopy #magnetooptics #moke #TransitionMetalDichalcogenides #TMDC #exciton #semiconductor #layeredsemiconductor

How does a liquid freeze? Amazingly this old question is not fully answered and this article pushes the experimental limit to measure it (used femtosecond 10^-15 sec X-ray diffraction)! On the more technical side, the results may help test and improve the theory of nucleation!

Altermagnetism is introduced as a category of magnetic states with ‘collinear’ antiferromagnetic spins and alternating variations of local structures around spins in such a way that the symmetry allows typical ferromagnetic behaviors. https://lnkd.in/gc3369qe

The condensation of excitons with non-zero momentum can give rise to so-called charge density waves (CDW). This phenomenon can prompt the transition of materials into a fascinating new quantum phase, known as an excitonic insulator.

Lightly Fe doped WTe2 might be a system hosting Weyl points with both inversion symmetry breaking and time reversal symmetry breaking. Cite our paper! https://lnkd.in/g7KGMhBi