82 citations · 297 across the 19 of their papers we have counts for
19 papers
Magnetic ground state, critical analysis of magnetization, and large magnetocaloric effect in the ferromagnetically coupled kagome lattice YCa(MnO)(BO)
A. Choudhary, A. Magar, S. Ghosh +2
We report a detailed study of the magnetic properties, critical analysis of magnetization, and magnetocaloric effect of a spin- kagome lattice YCa(MnO)(BO). The…
Atypical Ferrimagnetism in NiNbO
Jhuma Sannigrahi, Roumita Roy, Richard Waite +6
Ferrimagnetism typically emerges from chemically distinct magnetic ions or the same element at two inequivalent crystallographic sites, rendering unequal moments. In contrast, Ni4N…
Occurrence of chemically tuned spin-texture controlled large intrinsic anomalous Hall effect in epitaxial thin Films
Indraneel Sinha, Saurav Sachin, Shreyashi Sinha +3
Achieving atomically flat and stoichiometric films of chiral antiferromagnets (AFM) with two-dimensional kagome spin lattice structures are crucial for integrating these materials…
Hydrostatic and chemical pressure driven crossover from commensurate to the incommensurate state of the Weyl semimetal MnSn
K. Bhattacharya, A. K. Bharatwaj, C. Singh +5
The observation of large intrinsic anomalous Hall conductivity (AHC) in the non-collinear antiferromagnetic (AFM) phase of the Weyl semimetal MnSn generates enormous interest i…
Electronic and magnetic ground state of 4 double perovskite ruthenates ALaRuO (A Ca, Sr, Ba)
Asha Ann Abraham, Roumita Roy, Ruta Kulkarni +2
4 transition metal oxide (TMO) offers an intriguing puzzle for their electronic and magnetic ground state. They are in the cross-over regime of strong spin orbit interaction (SO…
Spin-orbit coupling tuned crossover of gaped and gapless topological phases in the chalcopyrite HgSnX 2 (X=N/P): An ab-initio investigation
Surasree Sadhukhan, Sudipta Kanungo
The coupling between electron orbital momentum and spin momentum, known as spin-orbit coupling (SOC), is a fundamental origin of a multitude of fascinating physical phenomena, espe…
Extrinsic to intrinsic mechanism crossover of anomalous Hall effect in the Ir-doped MnPtSn Heusler system
Sk Jamaluddin, Roumita Roy, Amitabh Das +2
Recent findings of large anomalous Hall signal in nonferromagnetic and nonferrimagnetic materials suggest that the magnetization of the system is not a critical component for the r…
Two-band conduction as a pathway to non-linear Hall effect and unsaturated negative magnetoresistance in the martensitic compound GdPd2Bi
Snehashish Chatterjee, Saurav Giri, Subham Majumdar +9
The present work aims to address the electronic and magnetic properties of the intermetallic compound GdPdBi through a comprehensive study of the structural, magnetic, electric…
Pressure driven topological phase transition in chalcopyrite ZnGeSb
Surasree Sadhukhan, Banasree Sadhukhan, Sudipta Kanungo
Recently topologically non-trivial phases have been identified in few time-reversal invariant systems that lack of inversion symmetry. Using density functional theory based first-p…
Role of chemical disorder in tuning the Weyl points in vanadium doped CoTiSn
Payal Chaudhary, Krishna Kant Dubey, Gaurav K. Shukla +8
The lack of time-reversal symmetry and Weyl fermions give exotic transport properties to Co-based Heusler alloys. In the present study, we have investigated the role of chemical di…
Structure, magnetism and electronic properties in 3-5 based double perovskite (SrCa)FeIrO (0 1): A combined experimental and theoretical investigation
K. C. Kharkwal, Roumita Roy, Harish Kumar +6
The 3-5 based double perovskites offer an ideal playground to study the interplay between electron correlation () and spin-orbit coupling (SOC) effect, showing exotic phys…
Pronounced 2/3 magnetization plateau in a frustrated = 1 isolated spin-triangle compound: Interplay between Heisenberg and biquadratic exchange interactions
S. Chattopadhyay, B. Lenz, S. Kanungo +13
We report the synthesis and characterization of a new quantum magnet [2-[Bis(2-hydroxybenzyl)aminomethyl]pyridine]Ni(II)-trimer (BHAP-Ni3) in single-crystalline form. Our combined…
Time-reversal-breaking topological phases in antiferromagnetic SrFeOsO films
Xiao-Yu Dong, Sudipta Kanungo, Binghai Yan +1
In this work, we studied time-reversal-breaking topological phases as a result of the interplay between antiferromagnetism and inverted band structures in thin films of antiferroma…
Active role of the nonmagnetic cations in magnetic interactions for the double-perovskite Sr2BOsO6 (B=Y, In, Sc)
Sudipta Kanungo, Binghai Yan, Claudia Felser +1
Using first-principles density functional theory, we have investigated the electronic and magnetic properties of recently synthesized and characterized 5d double-perovskites Sr2BOs…
Orbital ordering of Ir-t2g states in the double perovskite Sr2CeIrO6
Sudipta Kanungo, Kailash Mogare, Binghai Yan +2
The electronic and magnetic properties of monoclinic double perovskite SrCeIrO were examined based on both experiments and first-principles density functional theory calcul…
Na4IrO4: Square-Planar Coordination of a Transition Metal in d5 Configuration due to Weak On-Site Coulomb Interactions
Sudipta Kanungo, Binghai Yan, Patrick Merz +2
Local environments and valence electron counts primarily determine the electronic states and physical properties of transition metal complexes. For example, square-planar surroundi…
Ab-inito study of low temperature magnetic properties of double perovskite Sr2FeOsO6
Sudipta Kanungo, Binghai Yan, Martin Jansen +1
Using density-functional theory calculations, we investigated the electronic structure and magnetic exchange interactions of the ordered 3d-5d double perovskite Sr2FeOsO6, which ha…
Lattice-site-specific spin-dynamics in double perovskite Sr2CoOsO6
Binghai Yan, Avijit Kumar Paul, Sudipta Kanungo +12
We have studied the magnetic properties and spin-dynamics of the structurally-ordered double perovskite SrCoOsO. Our neutron diffraction, muon spin relaxation and ac-suscep…
Mechanism of Ferroelectricity in Perovskites - a Model Study
Paolo Barone, Sudipta Kanungo, Silvia Picozzi +1
By means of a model Hamiltonian approach we study the role of volume expansion, Hund's coupling and electron correlation in the standard hybridization mechanism for ferroelectricit…