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NSR database version of April 25, 2024.

Search: Author = T.P.Das

Found 27 matches.

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2008JE02      Physica B 403, 2225 (2008)

J.Jeong, S.H.Choh, N.Sahoo, T.P.Das

Ab initio calculations on nuclear quadrupole interactions of ^{69, 71}Ga and ¹⁴N nuclei in GaN of ionic crystal

doi: 10.1016/j.physb.2007.11.036
Citations: PlumX Metrics

1998HA40      Z.Naturforsch. 53a, 358 (1998)

F.Hagelberg, T.P.Das

Evaluation of the ^57mFe Quadrupole Moment from Hartree-Fock Calculations

NUCLEAR MOMENTS ^57mFe; calculated quadrupole moment; deduced environmental, electron correlation effects. Hartree-Fock calculations.

1996GO27      Z.Naturforsch. 51a, 565 (1996)

G.Gowri, T.Briere, S.Srinivas, H.-S.Cho, T.P.Das, M.Frank, W.Kreische, K.V.S.R.Rao

Theory of Nuclear Quadrupole Interactions in Solid Fluoromethanes with Implanted ¹⁹F(*) Nuclei. Coupling of HF(*) and Host Molecule

NUCLEAR MOMENTS ¹⁹F; calculated quadrupole coupling constant, asymmetry parameter. Hartree-Fock Roothaan procedure, fluorine-substitute methane compounds.

1995CH61      Hyperfine Interactions 96, 213 (1995)

H.-S.Cho, T.Briere, S.Srinivas, C.Russell, G.Gowri, R.Pati, T.P.Das, M.Frank, W.Kreische, K.B.Nielsen

First Principles Investigation of ¹⁹F(*) Nuclear Quadrupole Interaction in Fourth Group Tetrafluorides

NUCLEAR MOMENTS ¹⁹F; calculated J=5/2 level associated quadrupole interactions in CF₄, SiF₄, GeF₄. Hartree-Fock-Roothaan procedure.

doi: 10.1007/BF02066284
Citations: PlumX Metrics

1995YU09      Phys.Rev. A52, 197 (1995)

X.Yuan, S.N.Panigrahy, R.W.Dougherty, T.P.Das, J.Andriessen

Hyperfine Structures of Ca⁺ and Sr⁺ Ions: Summary of trends in hyperfine interactions in the alkaline-earth-metal ions and corresponding series with similar electronic structures

ATOMIC PHYSICS ⁴³Ca, ⁸⁷Sr; calculated hyperfine interactions in alkaline-earth-metal ions.

doi: 10.1103/PhysRevA.52.197
Citations: PlumX Metrics

1995YU10      Phys.Rev. A52, 3563 (1995)

X.Yuan, R.W.Dougherty, T.P.Das, J.Andriessen

Relativistic Calculations of the Hyperfine Interactions in the Excited 7²P_3/2 and 7²P_1/2 States of the Ra⁺ Ion

ATOMIC PHYSICS ²²¹Ra; calculated hyperfine interactions of the Ra⁺ ion. Relativistic approach.

doi: 10.1103/PhysRevA.52.3563
Citations: PlumX Metrics

1994KR04      Z.Phys. A348, 49 (1994)

S.Kremeyer, K.-H.Speidel, O.Jessensky, H.Busch, U.Grabowy, A.Gohla, J.Cub, G.Jakob, P.Maier-Komor, J.Gerber, A.Meens, F.Hagelberg, T.P.Das

Hyperfine Interaction Studies on Swift O-Ions Emerging with Polarized Electrons from Ferromagnetic Layers into Vacuum

NUCLEAR REACTIONS ⁴He(¹⁶O, ¹⁶O'), E=44 MeV; measured γα-coin, particle spectra, Iγ(θ) vs plunger distance for Gd-, Ni-layers; deduced electron polarization in highly stripped O-ions in Gd-, Ni-layers, transient field microscopic structure determining ionic state.

doi: 10.1007/BF01291652
Citations: PlumX Metrics

1994ST26      Phys.Rev. B50, 13355 (1994)

M.Steiner, W.Potzel, M.Kofferlein, H.Karzel, W.Schiessl, G.M.Kalvius, D.W.Mitchell, N.Sahoo, H.H.Klauss, T.P.Das, R.S.Feigelson, G.Schmidt

Lattice Dynamics and Hyperfine Interactions in ZnF₂ Single Crystals

NUCLEAR REACTIONS ⁶⁷Zn(γ, γ), E=93.31 keV; measured Mossbauer emission spectra vs temperature; deduced quadrupole interaction, electric field gradient, isomer shift in ZnF₂ single crystals.

doi: 10.1103/PhysRevB.50.13355
Citations: PlumX Metrics

1993HA34      Phys.Rev. C48, 2230 (1993)

F.Hagelberg, T.P.Das, K.-H.Speidel

Spin Exchange between Ion Probes and Localized Moments in Ferromagnets as the Origin of Transient Fields

NUCLEAR STRUCTURE Z=6-16; analyzed ion probes 1s polarization degree in Fe, Gd hosts; deduced ionic shell, localized electrons spin exchange mechanism role.

doi: 10.1103/PhysRevC.48.2230
Citations: PlumX Metrics

1993MI38      Hyperfine Interactions 78, 403 (1993)

D.W.Mitchell, S.B.Sulaiman, N.Sahoo, T.P.Das, W.Potzel, G.M.Kalvius, W.Schiessl, H.Karzel, M.Steiner

First Principles Theory of Hyperfine Interactions in Spinels: ZnAl₂O₄

NUCLEAR MOMENTS ²⁷Al, ⁶⁷Zn; calculated quadrupole interactions in spinel ZnAl₂O₄. Hartree-Fock cluster procedure.

doi: 10.1007/BF00568165
Citations: PlumX Metrics

1993MO31      Hyperfine Interactions 79, 659 (1993)

S.M.Mohapatra, N.Sahoo, K.C.Mishra, T.Briere, S.S.Nunes, F.Hagelberg, A.Catia, O.Donzelli, T.P.Das

Investigation of Expected Location of Muonium in Normal State in III-V Semiconductors and Associated Muon Hyperfine Interaction

doi: 10.1007/BF00567592
Citations: PlumX Metrics

1993MO32      Hyperfine Interactions 79, 739 (1993)

S.M.Mohapatra, N.Sahoo, K.C.Mishra, T.Briere, F.Hagelberg, T.P.Das

Theory for Position of Muonium in α-Quartz and Associated Hyperfine Interaction

doi: 10.1007/BF00567601
Citations: PlumX Metrics

1992SU07      Phys.Rev. B45, 7383 (1992)

S.B.Sulaiman, N.Sahoo, T.P.Das, O.Donzelli

Theory of Nuclear Quadrupole Interactions of ¹³⁵Ba and ¹³⁹La in YBa₂Cu₃O₆ and La₂CuO₄

NUCLEAR STRUCTURE ¹³⁵Ba, ¹³⁹La; calculated electric field gradients; deduced nuclear quadrupole coupling constants. Hartree-Fock cluster procedure, YB₂Cu₃O₆, La₂CuO₄ systems.

doi: 10.1103/PhysRevB.45.7383
Citations: PlumX Metrics

1991SU18      Phys.Rev. B44, 7028 (1991)

S.B.Sulaiman, N.Sahoo, T.P.Das, O.Donzelli, E.Torikai, K.Nagamine

Theory of Copper Hyperfine Interactions in the La₂CuO₄ System

NUCLEAR MOMENTS ⁶³Cu; calculated quadrupole coupling constant, asymmetry parameter; deduced magnetic hyperfine field. La₂CuO₄ system, unrestricted Hartree-Fock cluster technique.

doi: 10.1103/PhysRevB.44.7028
Citations: PlumX Metrics

1990NE11      Hyperfine Interactions 59, 145 (1990)

R.Neugart, E.W.Otten, K.Wendt, S.Ahmad, S.N.Panigrahy, R.W.Dougherty, K.C.Mishra, T.P.Das, J.Andriessen

Evaluation of the Magnetic Moments of Radium Isotopes

NUCLEAR STRUCTURE ²¹³Ra; calculated μ. Relativistic linked cluster many body perturbation procedure.

doi: 10.1007/BF02401210
Citations: PlumX Metrics

1989PA15      Phys.Rev. A40, 1765 (1989)

S.N.Panigrahy, R.W.Dougherty, T.P.Das, J.Andriessen

Theory of Hyperfine Interactions in Lithiumlike Systems

ATOMIC PHYSICS Li, Be, B, C, N, O, F, Ne, Bi; analyzed magnetic hyperfine constants; deduced valence, exchange core polarization, correlation contributions. Many-body perturbation theory.

doi: 10.1103/PhysRevA.40.1765
Citations: PlumX Metrics

1987KE03      Hyperfine Interactions 34, 285 (1987)

P.C.Kelires, T.P.Das

Self-Consistent Field Cluster Study of the Origin of Hyperfine Interaction and Isomer Shift in ^57mFe₂)O₃

NUCLEAR MOMENTS ⁵⁷Fe; calculated hyperfine interaction, isomer shift. Unrestricted Hartree-Fock, self-consistent field cluster.

doi: 10.1007/BF02072722
Citations: PlumX Metrics

1986SC33      Hyperfine Interactions 31, 69 (1986)

P.C.Schmidt, A.Coker, S.N.Ray, N.Sahoo, T.P.Das

Theory of Nuclear Quadrupole Interactions in Aluminum and Copper Metals in Presence of Muon

NUCLEAR STRUCTURE ²⁷Al, ⁶³Cu; calculated muon nearest neighbor electric field gradients in Al, Cu metals.

doi: 10.1007/BF02401541
Citations: PlumX Metrics

1982MI15      Phys.Rev. B25, 3389 (1982)

K.C.Mishra, K.J.Duff, T.P.Das

New Values of Quadrupole Moments of Fluorine Nuclei

NUCLEAR MOMENTS ^19,20F; analyzed FCl quadrupole interaction data; deduced quadrupole moments.

doi: 10.1103/PhysRevB.25.3389
Citations: PlumX Metrics

1982VA22      Phys.Rev.Lett. 48, 1330 (1982); Erratum Phys.Rev.Lett. 49, 1466 (1982); Erratum Phys.Rev.Lett. 49, 1800 (1982)

M.Vajed-Samii, J.Andriessen, B.P.Das, S.N.Ray, T.Lee, T.P.Das

Accurate Values of Nuclear Magnetic Moments of Francium Isotopes

NUCLEAR MOMENTS ^{208,209,210,211,212,213}Fr; calculated μ. Relativistic many-body perturbation theory.

doi: 10.1103/PhysRevLett.48.1330
Citations: PlumX Metrics

1981DU12      Phys.Rev.Lett. 46, 1611 (1981)

K.J.Duff, K.C.Mishra, T.P.Das

Ab Initio Determination of ^57mFe Quadrupole Moment from Mossbauer Data

NUCLEAR MOMENTS ^57mFe; analyzed Mossbauer data; deduced quadrupole moment. FeCl₂, FeBr₂ molecules trapped in Ar, Xe, self-consistent unrestricted Hartree-Fock molecular wave functions.

doi: 10.1103/PhysRevLett.46.1611
Citations: PlumX Metrics

1979TH04      Phys.Rev. B19, 4328 (1979)

M.D.Thompson, T.P.Das, G.Ciobanu

Theory of Nuclear Quadrupole Interaction in Cadmium Using a First-Principles Pseudopotential

ATOMIC PHYSICS Cd; calculated field gradient in metal.

NUCLEAR MOMENTS ¹¹¹Cd; deduced quadrupole moment from PAC in metallic cadmium.

doi: 10.1103/PhysRevB.19.4328
Citations: PlumX Metrics

1969LY05      Phys.Rev. 178, 103 (1969); Erratum Phys.Rev. 186, 266 (1969)

J.D.Lyons, R.T.Pu, T.P.Das

Many-Body Approach to Hyperfine Structure in the ²P State of Lithium

NUCLEAR MOMENTS ⁷Li; calculated a; re-evaluated Q.

doi: 10.1103/PhysRev.178.103
Citations: PlumX Metrics

1964SH29      J.Chem.Phys. 41, 3581 (1964)

R.R.Sharma, T.P.Das

Crystalline Fields in Corundum-Type Lattices

NUCLEAR STRUCTURE ⁵⁷Fe; measured not abstracted; deduced nuclear properties.

doi: 10.1063/1.1725771
Citations: PlumX Metrics

1960PO09      Phys.Rev. 119, 70 (1960)

M.Pomerantz, T.P.Das

Theory of Nuclear Quadrupole Interaction in Beryllium Metal

NUCLEAR STRUCTURE ⁹Be; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRev.119.70
Citations: PlumX Metrics

1959PO60      Bull.Am.Phys.Soc. 4, No.4, 251, K10 (1959)

M.Pomerantz, T.P.Das

Nuclear Quadrupole Interaction in Beryllium Metal

1958DA20      Solid State Physics, Suppl.1, Academic Press, Inc. New York, N.Y. (1958)

T.P.Das, E.L.Hahn

Nuclear Quadrupole Resonance Spectroscopy