82 citations · 291 across the 10 of their papers we have counts for
6 papers · 1 filter
X-ray photoemission study of NiS_{2-x}Se_x (x = 0.0 - 1.2)
S. R. Krishnakumar, D. D. Sarma
Electronic structure of NiS_{2-x}Se_x system has been investigated for various compositions (x) using x-ray photoemission spectroscopy. An analysis of the core level as well as the…
Metal-insulator Crossover Behavior at the Surface of NiS_2
D. D. Sarma, S. R. Krishnakumar, E. Weschke +8
We have performed a detailed high-resolution electron spectroscopic investigation of NiS and related Se-substituted compounds NiSSe, which are known to be gapped in…
Electronic structure of Millerite NiS
S. R. Krishnakumar, N. Shanthi, D. D. Sarma
We investigate the electronic structure of Nickel sulphide (NiS) in the millerite phase using electron spectroscopic measurements and band structure as well as model Hamiltonian ca…
Electronic structure of NiS_{1-x}Se_x
S. R. Krishnakumar, N. Shanthi, Priya Mahadevan +1
We investigate the electronic structure of the metallic NiSSe system using various electron spectroscopic techniques. The band structure results do not describe the det…
Disorder effects in electronic structure of substituted transition metal compounds
D. D. Sarma, A. Chainani, S. R. Krishnakumar +9
Investigating LaNi(1-x)M(x)O3 (M = Mn and Fe), we identify a characteristic evolution of the spectral function with increasing disorder in presence of strong interaction effects ac…
Electronic structure of NiSSe across the phase transition
D. D. Sarma, S. R. Krishnakumar, Nirmala Chandrasekharan +4
We report very highly resolved photoemission spectra of NiS(1-x)Se(x) across the so-called metal-insulator transition as a function of temperature as well as composition. The prese…