46 citations · 254 across the 23 of their papers we have counts for
5 papers · 1 filter
A Unified Theory of Collective Magnon and Orbiton Excitations in Altermagnets
Bishal Das, Chanchal K. Barman, Aftab Alam
Altermagnetism has recently emerged as a distinct collinear magnetic phase exhibiting momentum-dependent spin-splitting despite vanishing net magnetization, as a consequence of ine…
Stacking-Dependent Van Hove Singularity Shifts in Three-Dimensional Charge Density Waves of Kagome Metals AVSb (A = K, Rb, Cs)
Chanchal K. Barman, Sun-Woo Kim, Youngkuk Kim
Vanadium-based kagome systems AVSb (A = K, Rb, Cs) have emerged as paradigmatic examples exhibiting unconventional charge density waves (CDWs) and superconductivity linked…
Unconventional topological phase transition from semimetal to insulator in SnBi2Te4: Role of anomalous thermal expansion
T. K. Dalui, B. Das, C. K. Barman +8
We propose SnBi2Te4 to be a novel candidate material exhibiting temperature (T) mediated transitions between rich topological phases. From a combined theoretical and experimental s…
Weak antilocalization effect and triply degenerate state in Cu-doped CaAuAs
Sudip Malick, Arup Ghosh, Chanchal K. Barman +4
The effect of 50\% Cu doping at the Au site in the topological Dirac semimetal CaAuAs is investigated through electronic band structure calculations, electrical resistivity, and ma…
Hidden and coexistent magnetic phases in Kondo-type Cerium Hexaboride (CeB6)
C. K. Barman, Prashant Singh, D. D. Johnson +1
The heavy fermion material CeB6 shows hidden magnetic ordered phases. Besides well-known Ferromagnetic(FM) and Antiferromagnetic(AFM) phases, CeB6 is speculated to form a unique an…