Grazioli, C, Alfe, Dario, Krishnakumar, SR, Gupta, Subhra Sen, Veronese, M, Turchini, S, ...
The occurrence of a noncollinear magnetic structure at a Mn monolayer grown epitaxially on Fe(100) is predicted theoretically, using spin ordensity-functional theory, and observed experimentally,...
Grazioli, C, Alfe, Dario, Krishnakumar, SR, Gupta, Subhra Sen, Veronese, M, Turchini, S, ...
The occurrence of a noncollinear magnetic structure at a Mn monolayer grown epitaxially on Fe(100) is predicted theoretically, using spin ordensity-functional theory, and observed experimentally,...
Direct observation of large electronic domains with memory effect in doped manganites (2004)
Sarma, DD, Topwal, Dinesh, Manju, U, Krishnakumar, SR, Bertolo, M, Rosa, La S, ...
We use a spatially resolved, direct spectroscopic probe for electronic structure with an additional sensitivity to chemical compositions to investigate high-quality single crystal samples of...
Direct observation of large electronic domains with memory effect in doped manganites (2004)
Sarma, DD, Topwal, Dinesh, Manju, U, Krishnakumar, SR, Bertolo, M, Rosa, La S, ...
We use a spatially resolved, direct spectroscopic probe for electronic structure with an additional sensitivity to chemical compositions to investigate high-quality single crystal samples of...
Electron spectroscopic investigation of metal–insulator transition in $Ce_{1-x}Sr_xTiO_3$ (2003)
Manju, U, Krishnakumar, SR, Ray, Sugata, Raj, S, Onoda, M, Carbone, C, ...
Abstract. We have carried out detailed electron spectroscopic investigation of $Ce_{1–x}Sr_xTiO_3$ exhibiting insulator–metal transition with x. Core level X-ray photoelectron spectra of Ce 3d as...
X-ray photoemission study of NiS2-xSex (x = 0.0–1.2) (2003)
Electronic structure of NiS2–xSex system has been investigated for various compositions (x) using x-ray photoemission spectroscopy. An analysis of the core-level as well as the valence-band spectra...
Metal-insulator crossover behavior at the surface of $NiS_2$ (2003)
Sarma, DD, Krishnakumar, SR, Weschke, E, Schubler-Langeheine, C, Mazumdar, Chandan, Kilian, L, ...
We have performed a detailed high-resolution electron spectroscopic investigation of $NiS_2$ and related Se-substituted compounds, $NiS_{2-x}Se_x$, which are known to be gapped insulators in the bulk...
X-ray photoemission study of NiS2-xSex (x = 0.0–1.2) (2003)
Electronic structure of NiS2–xSex system has been investigated for various compositions (x) using x-ray photoemission spectroscopy. An analysis of the core-level as well as the valence-band spectra...
Metal-insulator crossover behavior at the surface of $NiS_2$ (2003)
Sarma, DD, Krishnakumar, SR, Weschke, E, Schubler-Langeheine, C, Mazumdar, Chandan, Kilian, L, ...
We have performed a detailed high-resolution electron spectroscopic investigation of $NiS_2$ and related Se-substituted compounds, $NiS_{2-x}Se_x$, which are known to be gapped insulators in the bulk...
Electron spectroscopic investigation of metal–insulator transition in $Ce_{1-x}Sr_xTiO_3$ (2003)
Manju, U, Krishnakumar, SR, Ray, Sugata, Raj, S, Onoda, M, Carbone, C, ...
Abstract. We have carried out detailed electron spectroscopic investigation of $Ce_{1–x}Sr_xTiO_3$ exhibiting insulator–metal transition with x. Core level X-ray photoelectron spectra of Ce 3d as...
Electronic structure of millerite NiS (2002)
Krishnakumar, SR, Shanthi, N, Sarma, DD
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 calculations. While...
Electronic structure of millerite NiS (2002)
Krishnakumar, SR, Shanthi, N, Sarma, DD
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 calculations. While...
Electronic structure of $NiS_{1-x}Se_x$ (2000)
Krishnakumar, SR, Shanthi, N, Mahadevan, Priya, Sarma, DD
We investigate the electronic structure of the metallic $NiS_{1-x}Se_x$ system using various electron spectroscopic techniques. The band-structure results do not describe the details of the spectral...
Electronic structure of $NiS_{1-x}Se_x$ (2000)
Krishnakumar, SR, Shanthi, N, Mahadevan, Priya, Sarma, DD
We investigate the electronic structure of the metallic $NiS_{1-x}Se_x$ system using various electron spectroscopic techniques. The band-structure results do not describe the details of the spectral...
Disorder Effects in Electronic Structure of Substituted Transition Metal Compounds (1998)
Sarma, DD, Chainani, A, Krishnakumar, SR, Vescovo, E, Carbone, C, Eberhardt, W, ...
Investigating $LaN_{2-x}M_xO_3$ (M Mn and Fe), we identify a characteristic evolution of the spectral function with increasing disorder in the presence of strong interaction effects across the...
Unoccupied electronic states in $NiS_{2-x}Se_x$ across the metal-insulator transition (1998)
Sarma, DD, Pedio, M, Capozi, MC, Girycki, A, Chandrasekharan, Nirmala, Shanthi, N, ...
We investigate the evolution of the electronic structure across the insulator-metal transition in $NiS_{2-x}Se_x$ with changing composition, but in the absence of any structural or magnetic changes....
Unoccupied electronic states in $NiS_{2-x}Se_x$ across the metal-insulator transition (1998)
Sarma, DD, Pedio, M, Capozi, MC, Girycki, A, Chandrasekharan, Nirmala, Shanthi, N, ...
We investigate the evolution of the electronic structure across the insulator-metal transition in $NiS_{2-x}Se_x$ with changing composition, but in the absence of any structural or magnetic changes....
Disorder Effects in Electronic Structure of Substituted Transition Metal Compounds (1998)
Sarma, DD, Chainani, A, Krishnakumar, SR, Vescovo, E, Carbone, C, Eberhardt, W, ...
Investigating $LaN_{2-x}M_xO_3$ (M Mn and Fe), we identify a characteristic evolution of the spectral function with increasing disorder in the presence of strong interaction effects across the...
Temperature-dependent photoemission spectral weight in $La_{0.6}Sr_{0.4}MnO_3$ (1996)
Sarma, DD, Shanthi, N, Krishnakumar, SR, Saitoh, T, Mizokawa, T, Sekiyama, A, ...
We report temperature-dependent redistribution of spectral weight in photoemission spectra of $La_{0.6}Sr_{0.4}MnO_3$ over a wide energy range of several eV. We attribute this to a change in the...
Temperature-dependent photoemission spectral weight in $La_{0.6}Sr_{0.4}MnO_3$ (1996)
Sarma, DD, Shanthi, N, Krishnakumar, SR, Saitoh, T, Mizokawa, T, Sekiyama, A, ...
We report temperature-dependent redistribution of spectral weight in photoemission spectra of $La_{0.6}Sr_{0.4}MnO_3$ over a wide energy range of several eV. We attribute this to a change in the...