45 citations · 142 across the 31 of their papers we have counts for
16 papers · 1 filter
Altermagnetism from the viewpoint of chemistry
Nayana Devaraj, Anumita Bose, Md Afsar Reja +2
Magnetism has been a central theme of research in chemistry, physics, and materials science, with chemical composition and bonding playing key roles in determining magnetic behavio…
Hidden chiral signatures in ferroaxial K2Zr(PO4)2
Nora Taufertshöfer, Awadhesh Narayan, Nicola A. Spaldin
We use first-principles calculations and multipole analyses to demonstrate the relationship between ferroaxiality and chirality in the prototypical ferroaxial material K2Zr(PO4)2.…
Transport Evidence of Magnetic Polarization in the Altermagnetic Candidate MnTe
Younes Ghorbani, Nayana Devaraj, Joshua Maile +7
The ability to precisely control magnetic properties is central to the development of future spin-based electronics. In this work, we report the successful growth of epitaxial α-Mn…
Electric field induced Berry curvature dipole in quasi-one-dimensional BiI
Amiya Mondal, Awadhesh Narayan
The nonlinear Hall effect in time-reversal symmetric materials offers a powerful probe into quantum geometry. Here, we investigate the electric-field-tunable nonlinear Hall respons…
Nonlinear Hall Effect in Metal-Organic Frameworks
Sarbajit Mazumdar, Jagadish N S, Awadhesh Narayan +3
We propose metal-organic frameworks (MOFs) as tunable platforms for nonlinear Hall responses. A universal analytical downfolding scheme maps -symmetric frameworks onto star- a…
Berry Curvature Dipole-induced Non-linear Hall Effect in Oxide Heterostructures
Nesta Benno Joseph, Arka Bandyopadhyay, Ajit C. Balram +1
The observation of non-linear Hall effects in time-reversal invariant systems has established the intriguing role of band topology beyond Berry curvature in determining transport p…
Extremely Large and Angle-Dependent Magnetoresistance in Kagome Dirac Semimetal RFeSn (R=Ho, Dy)
Susanta Ghosh, Achintya Low, Nayana Devaraj +3
We report on the electronic, magnetic, and magneto-transport properties of Fe-based kagome Dirac system, RFeSn (R = Ho, Dy). Magnetic properties study reveals an antiferrom…
Unlocking Doping Effects on Altermagnetism in MnTe: Emergence of Quasi-altermagnetism
Nayana Devaraj, Anumita Bose, Arindom Das +4
Governed by specific symmetries, altermagnetism is an emerging field in condensed matter physics, characterized by unique spin-splitting of the bands in the momentum space co-exist…
Modulation of Polarization and Metallicity in Janus Sliding Ferroelectrics
Akshay Mahajan, Awadhesh Narayan
Sliding ferroelectricity is emerging as a distinct and promising mechanism for realizing ferroelectricity in low-dimensional systems, offering new design principles beyond the conv…
Anomalous and parallel Hall effects in ferromagnetic Weyl semimetal CrTe
Anumita Bose, Shubham Purwar, Setti Thirupathaiah +1
Recently, time-reversal symmetry broken magnetic Weyl semimetals (WSMs) have attracted extensive attention and have provided an intriguing platform for exploring fundamental physic…
Dopant-induced modulation of ferroelectricity in perovskite nitride LaWN
Harshvardhan Singh Deora, Awadhesh Narayan
Perovskite nitrides are starting to be explored for their promising properties distinct from their oxide counterparts. Here, through first-principles density functional computation…
Chirality-tunable non-linear Hall effect
Nesta Benno Joseph, Arka Bandyopadhyay, Awadhesh Narayan
The non-linear generalization of the Hall effect has recently gained much attention, with a rapidly growing list of non-centrosymmetric materials that display higher-order Hall res…
Interplay of altermagnetism and pressure in hexagonal and orthorhombic MnTe
Nayana Devaraj, Anumita Bose, Awadhesh Narayan
Alternative magnetic materials or ``altermagnets", characterized by their non-relativistic, momentum-dependent spin-split states, represent a cutting-edge advancement in the field…
Weak Electronic Correlations Observed in Magnetic Weyl Semimetal MnGe
Susmita Changdar, Susanta Ghosh, Anumita Bose +6
Using angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations, we systematically studied the electronic band structure of MnGe in the…
Origin of flat bands and non-trivial topology in coupled kagome lattices
Anumita Bose, Arka Bandyopadhyay, Awadhesh Narayan
We propose an exact analytical decimation transformation scheme to explore the fascinating coexistence of flat bands and Dirac fermions in three-dimensional coupled kagome systems.…
Investigation of the Anomalous and Topological Hall Effects in Layered Monoclinic Ferromagnet CrTe
Shubham Purwar, Achintya Low, Anumita Bose +2
We studied the electrical transport, Hall effect, and magnetic properties of monoclinic layered ferromagnet CrTe. Our studies demonstrate CrTe to be a sof…