80 citations · 324 across the 14 of their papers we have counts for
13 papers · 1 filter
Unconventional topological Hall response and anisotropic magnetotransport properties of a helical magnet EuAuAs
Anyesh Saraswati, Koyendrila Debnath, Shubhankar Roy +3
Topological magnets with nontrivial spin texture have attracted considerable interest because they display a rich spectrum of emergent quantum phenomena. Here, we present a combine…
Kramers nodal line in the charge density wave state of YTe and the influence of twin domains
Shuvam Sarkar, Joydipto Bhattacharya, Pramod Bhakuni +13
Recent studies have focused on the relationship between charge density wave (CDW) collective electronic ground states and nontrivial topological states. Using angle-resolved photoe…
Detection of nontrivial topology driven by charge density wave in a semi-Dirac metal
Rafiqul Alam, Prasun Boyal, Shubhankar Roy +6
The presence of electron correlations in a system with topological order can lead to exotic ground states. Considering single crystals of LaAgSb2 which has a square net crystal str…
Charge density wave induced nodal lines in LaTe
Shuvam Sarkar, Joydipto Bhattacharya, Pampa Sadhukhan +11
LaTe is a noncentrosymmetric (NC) material with time reversal (TR) symmetry in which the charge density wave (CDW) is hosted by the Te bilayers. Here, we show that LaTe hos…
Signature of topological non-trivial band structure in TaSiTe
Shubhankar Roy, Ratnadwip Singha, Arup Ghosh +1
The study of topology protected electronic properties is a fascinating topic in present day condensed matter physics research. New topological materials are frequently being propos…
Anomalous Hall effect in half-metallic Heusler compound CoTi (=Si, Ge)
Shubhankar Roy, Ratnadwip Singha, Arup Ghosh +2
Though Weyl fermions have recently been observed in several materials with broken inversion symmetry, there are very few examples of such systems with broken time reversal symmetry…
Lattice dynamics of topological Dirac semimetal LaAgSb with charge density wave ordering
Ratnadwip Singha, Sudeshna Samanta, Tara Shankar Bhattacharya +5
LaAgSb is a rare material, which offers the opportunity to investigate the complex interplay between charge density wave (CDW) ordering and topology protected electronic band…
Complex exchange mechanism driven ferromagnetism in half-metallic Heusler CoTiGe: Evidence from critical behavior
Shubhankar Roy, Nazir Khan, Ratnadwip Singha +2
We have investigated the critical phenomenon associated with the magnetic phase transition in the half-metallic full-Heusler CoTiGe. The compound undergoes a continuous ferroma…
Magnetotransport properties and giant anomalous Hall angle in half-Heusler compound TbPtBi
Ratnadwip Singha, Shubhankar Roy, Arnab Pariari +2
Magnetic lanthanide half-Heuslers (PtBi; being the lanthanide) represent an attractive subgroup of the Heusler family and have been identified as ideal candidates for time r…
Fascinating interplay between Charge Density Wave Order and magnetic field in Non-magnetic Rare-Earth Tritelluride LaTe
Arnab Pariari, Sudipta Koley, Shubhankar Roy +4
Charge density wave (CDW) states in solids bear an intimate connection to underlying fermiology. Modification of the latter by a suitable perturbation provides an attractive handle…
Planar Hall effect in type II Dirac semimetal VAl
Ratnadwip Singha, Shubhankar Roy, Arnab Pariari +2
The study of electronic properties in topological systems is one of the most fascinating topics in condensed matter physics, which has generated enormous interests in recent times.…
Magneto-transport properties of proposed triply degenerate topological semimetal PdBiS
Shubhankar Roy, Arnab Pariari, Ratnadwip Singha +2
We report transport properties of single-crystalline PdBiS, which has been predicted to host an unconventional electronic phase of matter beyond three-dimensional…
Anisotropic Fermi surface probed by the de Haas-van Alphen oscillation in proposed Dirac Semimetal TaSb
Arnab Pariari, Ratnadwip Singha, Shubhankar Roy +2
TaSb has been predicted theoretically and proposed through magnetotransport experiment to be a topological semimetal. In earlier reports, the Shubnikov-de Haas oscillation ha…