22 citations · 23 across the 5 of their papers we have counts for
5 papers
Evidence for Conical Magnetic Structure in M-type BaFe12O19 Hexaferrite: A Combined Single-Crystal XMCD and Neutron Diffraction Study
Keshav Kumar, Shrawan K. Mishra, Sanjay Singh +5
The magnetic ground state of BaFe12O19 (BFO) was investigated using X-ray absorption at 1.2 K and 1.5 K, respectively. The XMCD measurements on single-crystals of BFO in grazing in…
Evidence for reentrant quantum paraelectric state preceded by a multiglass phase with non-classical exponent and magnetodielectric coupling in SrFe12O19
Keshav Kumar, Dhananjai Pandey
Evidence for a re-entrant quantum paraelectric (QPE) state preceded by a dipole glass (DG) phase with a non-classical exponent in the quantum critical regime of SrFe12O19 is presen…
Evidence for Emergent Kagome Spin Configuration with Concomitant Transverse and Longitudinal Spin-Glass Freezing in the Chemically Ordered M-type Hexaferrite BaFe12O19
Keshav Kumar, Anatoliy Senyshyn, Dhananjai Pandey
Frustration effects in magnetic systems have traditionally been investigated considering pre-existing site-disorder or lattice geometry of the high-temperature paramagnetic phase.…
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…
Quantum Phase Transitions in Ba(1-x)CaxFe12O19
K. Kumar, D. Pandey
The ground state of BaFe12O19 (BFO) is controversial as three different quantum states, namely quantum paraelectric, frustrated antiferroelectric and quantum electric dipole liquid…