Avinash Singh
Publications (2006-2010)
47. Correlation Effects in a Band Ferromagnet:
Spin-Rotationally Symmetric Study with Self-Energy and Vertex Corrections
Avinash Singh
Phys. Rev. B 74, 224437 (2006)
48. Clustering Induced Suppression of Ferromagnetism in Diluted Magnets
Avinash Singh
Phys. Rev. B 75, 035206 (2007)
49. Spin Dynamics in the Diluted Ferromagnetic Kondo Lattice Model
Avinash Singh, Subrat Kumar
Das, Anand Sharma, and Wolfgang Nolting
J. Phys.: Condens. Matter 19,
236213 (2007)
50. Ferromagnetism in the t-t' Hubbard Model: Interplay of
Lattice, Band Dispersion,
and Interaction Effects studied within a Goldstone-Mode Preserving Scheme
Sudhakar Pandey and Avinash Singh
Phys. Rev. B 75, 064412 (2007)
51. Quantum and Thermal Fluctuations in the 2D Correlated Band Ferromagnet ---
Goldstone-Mode Preserving Investigation with Self-Energy and Vertex Corrections
Sudhakar Pandey
and Avinash Singh
Phys. Rev. B 76, 104437 (2007)
52. Spin Dynamics of YMnO3 and its Anisotropic Hubbard Model
Analysis
Tapan Chatterji, S Ghosh, Avinash Singh, L P Regnault, M Rheinstadter, G J Mcintyre, and T Lonkai
Phys. Rev. B 76, 144406 (2007)
53. High-Energy Kink in the Dispersion of
a Hole in an Antiferromagnet ---
Double-Occupancy Effects on Electronic Excitations
Pooja Srivastava,
Saptarshi Ghosh, and Avinash Singh
Phys. Rev. B 76, 184435 (2007)
54. Anisotropic Hubbard Model on a
Triangular Lattice --- Spin Dynamics in HoMnO3
Saptarshi Ghosh
and Avinash Singh
Pramana 70,
163 (2008)
55. Spin-Wave Excitations and Low-Temperature Magnetization in GaMnAs
M Sperl, Avinash Singh, U Wurstbauer, S K Das, A Sharma, M Hirmer,
W Nolting, C H Back, W Wegscheider,
and G Bayreuther
Phys. Rev. B 77, 125212 (2008)
56. Correlation Effects on Magnetic
Frustration in the Triangular-Lattice Hubbard Model
Saptarshi Ghosh
and Avinash Singh
Phys. Rev. B 77, 094430 (2008)
57. Fermionic
Representation for the Ferromagnetic Kondo Lattice Model ---
Diagrammatic Study of Spin-Charge Coupling Effects on Magnon
Excitations
Sudhakar Pandey,
Subrat Kumar Das, Bhaskar Kamble, Saptarshi Ghosh,
Dheeraj Kumar Singh, Rajyavardhan
Ray, and Avinash Singh
Phys. Rev. B 77, 134447 (2008)
58. Spin-Charge Coupling in a Band Ferromagnet:
Magnon-Energy Renormalization, Anomalous Softening,
and Damping
Sudhakar Pandey
and Avinash Singh
Phys. Rev. B 78, 014414 (2008)
59. Orbital Degeneracy, Hund's Coupling, and Band Ferromagnetism ---
Effective Quantum Parameter, Suppression of Quantum Corrections, and Enhanced
Stability
Bhaskar Kamble
and Avinash Singh
Phys. Rev. B 79, 064410 (2009)
60. Orbital Fluctuations, Spin-Orbital
Coupling, and Anomalous Magnon Softening
in an Orbitally Degenerate Ferromagnet
Dheeraj Kumar Singh, Bhaskar Kamble, and Avinash Singh
Phys. Rev. B 81, 064430 (2010) (Featured
in Kaleidoscope)
61. Spin-Charge and Spin-Orbital Coupling
Effects
on Spin Dynamics in Ferromagnetic Manganites
Dheeraj Kumar Singh, Bhaskar Kamble, and Avinash Singh
J. Phys.: Condens. Matter 22 (2010)
396001
62. Spin Waves in the
(0,p) and (0,p,p) Ordered SDW States of the t-t'
Hubbard Model:
Application to Doped Iron Pnictides
Nimisha Raghuvanshi
and Avinash Singh
J. Phys.: Condens. Matter 22 (2010)
422202 (FAST TRACK COMMUNICATION)
Selected for inclusion in IOP Select
(http://Select.iop.org)
63. Signature Effects of Spin Clustering and
Distribution of Spin Couplings
on Magnetization Behaviour of Ni-Fe-Mo and Ni-Fe-W
Alloys
Mitali Banerjee,
Avinash Singh, A K Majumdar,
and A K Nigam
J. Phys.: Condens. Matter 23 (2011) 306004
64. Role of Hund's Coupling on Stability of
the
Nimisha Raghuvanshi
and Avinash Singh
J. Phys.: Condens. Matter 23 (2011) 312201
(FAST TRACK COMMUNICATION)
65. An Effective Quantum Parameter for
Strongly Correlated Metallic Ferromagnets
Bhaskar Kamble
and Avinash Singh
J. Phys.: Condens. Matter 24 (2012) 086004
66. Onset and Melting
of Local Orbital Order
Avinash Singh and Dheeraj
Kumar Singh
J. Phys.: Condens. Matter 24 (2012) 086003
67. Exact Eigenstates Analysis of Finite Frequency Conductivity in Graphene
Rajyavardhan Ray and Avinash Singh
arXiv: 1105.2354 (2011)
68. Magnetic Excitations in Iron Pnictides
Nimisha Raghuvanshi,
Sayandip Ghosh, Rajyavardhan Ray, Dheeraj Kumar Singh, and Avinash
Singh
arXiv: 1106.4421 (2011)
69. Diagrammatic Study of the Correlated Ferromagnetic Kondo Lattice Model:
Spin-Charge Coupling Effects in Manganites
Dheeraj Kumar Singh and Avinash Singh