Výsledky vyhledávání - "Raman, Karthik V."

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Anisotropic planar Hall effects in Bi$_2$Se$_3$/EuS interfaces: Deciphering the role of proximity induced spin canting and topological spin texture

Autor: Singh, Juhi, Raman, Karthik V., Mohanta, Narayan

Publikováno v: Phys. Rev. B 110, 125133 (2024)

Proximity coupling of ferromagnetic insulator EuS to the topological insulator Bi$_2$Se$_3$ has been proposed to break time-reversal symmetry near the surface of Bi$_2$Se$_3$, introducing an energy gap or a tilt in the surface Dirac cone. As an inver

Externí odkaz: http://arxiv.org/abs/2403.04533

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Longitudinal magnetoconductance and the planar Hall conductance in inhomogeneous Weyl semimetals

Autor: Ahmad, Azaz, Raman, Karthik V., Tewari, Sumanta, Sharma, G.

Elastic deformations (strain) couple to the electronic degrees of freedom in Weyl semimetals as an axial magnetic field (chiral gauge field), which in turn affects their impurity dominated diffusive transport. Here we study the longitudinal magnetoco

Externí odkaz: http://arxiv.org/abs/2209.05507

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Revisiting magnetotransport in Weyl semimetals

Autor: Sharma, G., Nandy, Snehashish, Raman, Karthik V., Tewari, Sumanta

Publikováno v: Phys. Rev. B 107, 115161 (2023)

A series of recent papers have claimed that intranode scattering, alone, can contribute to positive longitudinal magnetoconductance (LMC) due to chiral anomaly (CA) in Weyl semimetals (WSMs). We revisit the problem of CA induced LMC in WSMs, and show

Externí odkaz: http://arxiv.org/abs/2201.09922

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In-depth Analysis of Anisotropic Magnetoconductance in Bi$_2$Se$_3$ thin films with electron-electron interaction corrections

Autor: Sasmal, Satyaki, Mukherjee, Joynarayan, Suri, Dhavala, Raman, Karthik V.

A combination of out-of-plane and in-plane magnetoconductance (MC) study in topological insulators (TI) is often used as an experimental technique to probe weak anti-localization (WAL) response of the topological surface states (TSSs). However, in ad

Externí odkaz: http://arxiv.org/abs/2106.07698

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Evidence of Spin-Glass state in Molecular Exchange-Bias System

Autor: Mundlia, Suman, Raman, Karthik V.

In conventional exchange-bias system comprising of a bilayer film of ferromagnet (FM) and antiferromagnet (AFM), investigating the role of spin-disorder and spin-frustration inside the AFM and at the interface has been crucial in understanding the fu

Externí odkaz: http://arxiv.org/abs/2011.13793

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Sign reversal of anomalous Hall conductivity and magnetoresistance in cubic non-collinear antiferromagnet Mn$_3$Pt thin films

Autor: Mukherjee, Joynarayan, Suraj, T. S., Basumatary, Himalaya, Sethupathi, K., Raman, Karthik V.

Publikováno v: Phys. Rev. Materials 5, 014201 (2021)

The two dimensional kagome spin lattice structure of Mn atoms in the family of Mn$_3$X non-collinear antiferromagnets are providing substantial excitement in the exploration of Berry curvature physics and the associated non-trivial magnetotransport r

Externí odkaz: http://arxiv.org/abs/2009.01011

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