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1.
Electronic structure of Sr2FeMoO6
Sarma DD; Mahadevan P; Saha-Dasgupta T; Ray S; Kumar A.
Phys Rev Lett ; 85(12): 2549-52, 2000 Sep 18.
Article in English | MEDLINE | ID: mdl-10978104

ABSTRACT

We have analyzed the unusual electronic structure of Sr2FeMoO6 combining ab initio and model Hamiltonian approaches. Our results indicate that there are strong enhancements of the intra-atomic exchange strength at the Mo site as well as the antiferromagnetic coupling strength between Fe and Mo sites. We discuss the possibility of a negative effective Coulomb correlation strength ( U(eff)) at the Mo site due to these renormalized interaction strengths.

2.
Comment on "Spectral evidence for the importance of single-site effects in heavy-fermion uranium materials"
Sarma DD; Hillebrecht FU.
Phys Rev Lett ; 61(5): 651, 1988 Aug 01.
Article in English | MEDLINE | ID: mdl-10039392
3.
Comment on "X-ray-photoelectron diffraction from a free-electron-metal valence band: Evidence for hole-state localization"
Sarma DD; Speier W; van Acker JF.
Phys Rev Lett ; 66(21): 2834, 1991 May 27.
Article in English | MEDLINE | ID: mdl-10043629
4.
Sarma et al. reply.
Sarma DD; Carbone C; Sen P; Cimino R; Gudat W.
Phys Rev Lett ; 66(7): 967, 1991 Feb 18.
Article in English | MEDLINE | ID: mdl-10043960
5.
Band theory for ground-state properties and excitation spectra of perovskite LaMO3 (M=Mn, Fe, Co, Ni).
Sarma DD; Shanthi N; Barman SR; Hamada N; Sawada H; Terakura K.
Phys Rev Lett ; 75(6): 1126-1129, 1995 Aug 07.
Article in English | MEDLINE | ID: mdl-10060212
6.
Appearance of correlation effects in U intermetallics.
Sarma DD; Hillebrecht FU; Speier W; Mrtensson N; Koelling DD.
Phys Rev Lett ; 57(17): 2215-2218, 1986 Oct 27.
Article in English | MEDLINE | ID: mdl-10033665
7.
Origin of Cu and Zn L2- and L3-M45M45 Auger satellites: Breakdown of the sudden approximation.
Sarma DD; Carbone C; Sen P; Cimino R; Gudat W.
Phys Rev Lett ; 63(6): 656-659, 1989 Aug 07.
Article in English | MEDLINE | ID: mdl-10041138
8.
Electronic structure of high-Tc superconductors from core-level spectroscopies.
Sarma DD.
Phys Rev B Condens Matter ; 37(13): 7948-7951, 1988 May 01.
Article in English | MEDLINE | ID: mdl-9944119
9.
Systematics in the oxygen 1s core-level photoemission spectra from metal oxides: Model calculations.
Sarma DD; Chainani A.
Phys Rev B Condens Matter ; 41(10): 6688-6691, 1990 Apr 01.
Article in English | MEDLINE | ID: mdl-9992919
10.
Analysis of the core-level photoemission spectra of the superconducting cuprates: Evidence for a strongly mixed-valent state.
Sarma DD; Ovchinnikov SG.
Phys Rev B Condens Matter ; 42(10): 6817-6819, 1990 Oct 01.
Article in English | MEDLINE | ID: mdl-9994794
11.
Electronic structures of gallium and indium across the solid-liquid transition.
Barman SR; Sarma DD.
Phys Rev B Condens Matter ; 51(7): 4007-4013, 1995 Feb 15.
Article in English | MEDLINE | ID: mdl-9979236
12.
Photoelectron-spectroscopy investigation of the spin-state transition in LaCoO3.
Barman SR; Sarma DD.
Phys Rev B Condens Matter ; 49(19): 13979-13982, 1994 May 15.
Article in English | MEDLINE | ID: mdl-10010347
13.
Electronic structure of TiOx (0.8
Barman SR; Sarma DD.
Phys Rev B Condens Matter ; 49(23): 16141-16148, 1994 Jun 15.
Article in English | MEDLINE | ID: mdl-10010759
14.
Electronic structure of La1-xSrxCrO3.
Maiti K; Sarma DD.
Phys Rev B Condens Matter ; 54(11): 7816-7822, 1996 Sep 15.
Article in English | MEDLINE | ID: mdl-9984455
15.
Estimation of electron-electron interaction strengths for the rare-earth metals from X alpha calculations.
Sarma DD; Kamath PV.
Phys Rev B Condens Matter ; 36(14): 7402-7406, 1987 Nov 15.
Article in English | MEDLINE | ID: mdl-9942504
16.
Electronic structure of high-Tc cuprates from core-level photoemission spectroscopy.
Sarma DD; Taraphder A.
Phys Rev B Condens Matter ; 39(16): 11570-11574, 1989 Jun 01.
Article in English | MEDLINE | ID: mdl-9947988
17.
Calculation of Coulomb interaction strengths for 3d transition metals and actinides.
Bandyopadhyay T; Sarma DD.
Phys Rev B Condens Matter ; 39(6): 3517-3521, 1989 Feb 15.
Article in English | MEDLINE | ID: mdl-9948665
18.
Relation between the electronic structure and the superconductivity of cuprates as revealed by Cu 2p photoemission and theoretical investigations.
Santra AK; Sarma DD; Rao CN.
Phys Rev B Condens Matter ; 43(7): 5612-5615, 1991 Mar 01.
Article in English | MEDLINE | ID: mdl-9997960
19.
Dielectric function and optical conductivity of TiOx (0.8
Gokhale S; Barman SR; Sarma DD.
Phys Rev B Condens Matter ; 52(20): 14526-14530, 1995 Nov 15.
Article in English | MEDLINE | ID: mdl-9980783
20.
Electronic structure of NaCuO2.
Nimkar S; Sarma DD; Krishnamurthy HR.
Phys Rev B Condens Matter ; 47(16): 10927-10930, 1993 Apr 15.
Article in English | MEDLINE | ID: mdl-10005220
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