152 citations · 251 across the 12 of their papers we have counts for
12 papers
Magnetic imaging with spin defects in hexagonal boron nitride
P. Kumar, F. Fabre, A. Durand +13
Optically-active spin defects hosted in hexagonal boron nitride (hBN) are promising candidates for the development of a two-dimensional (2D) quantum sensing unit. Here, we demonstr…
Evidence of Ferromagnetic Clusters and Griffiths Singularity in Magnetic Weyl Semimetal CoSnS
V. Nagpal, S. Chaudhary, P. Kumar +2
Cobalt based sulphides of compositional formula CoAS (A = Sn and In) are endowed with frustrated kagome lattice structure and a plethora of novel phenomena…
Magnetic field-induced resistivity upturn and exceptional magneto-resistance in Weyl semimetal TaSb2
Sudesh, P. Kumar, S. Patnaik
We study magneto-transport properties in single crystals of TaSb_2, which is a recently discovered topological semimetal. In the presence of magnetic field, the electrical resistiv…
Evidence for superferrimagnetic clusters and spin-glass transition involving 4f Dy3+ spins in h-DyMnO3: A new twist to 4f Re3+ spin ordering in hexagonal manganites
P. Aravinth Kumar, Arun Kumar, Keshav Kumar +5
The ferroelectric phase of the multiferroic hexagonal manganites (h-ReMnO3) has been reported to undergo a series of magnetic transitions involving long-range ordering/reorientatio…
Origin and Suppression of Magnetic Flux Noise
P. Kumar, S. Sendelbach, M. A. Beck +7
Magnetic flux noise is a dominant source of dephasing and energy relaxation in superconducting qubits. The noise power spectral density varies with frequency as with $α\sim…
Density driven fluctuations in a two-dimensional superconductor
S. Hurand, J. Biscaras, N. Bergeal +11
In the vicinity of a phase transition, the order parameter starts fluctuating before vanishing at the critical point. The fluctuation regime, i.e. the way the ordered phase disappe…