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S. Ramkumar · SciRah

Researcher profile · Semantic Scholar

S. Ramkumar

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S. Ramkumar — researcher profile on SciRah

h-index: 7
Works: 23
Citations: 234

Most-cited papers

An assessment of radiotherapy dosimeters based on CVD grown diamond
S. Ramkumar, C. Buttar, J. Conway, A. Whitehead +3 more
200155 citations
Semantic Scholar
A study of radiotherapy dosimeters based on diamond grown by chemical vapour deposition
C. Buttar, R. Airey, J. Conway, G. Hill +5 more
200050 citations
Semantic Scholar
CVD diamond for medical dosimetry applications
A. Whitehead, R. Airey, C. Buttar, J. Conway +5 more
200149 citations
Semantic Scholar
First-principles investigation of the structural, dynamical, and dielectric properties of kesterite, stannite, and PMCA phases of Cu2ZnSnS4
S. Ramkumar, Y. Gillet, A. Miglio, Michiel J. van Setten +2 more
201620 citations Open access
Semantic Scholar
Insights into cation disorder and phase transitions in CZTS from a first-principles approach
S. Ramkumar, A. Miglio, Michiel J. van Setten, D. Waroquiers +2 more
2018PHYSICAL REVIEW MATERIALS16 citations Open access
Semantic Scholar
First-principles investigation of CZTS Raman spectra
S. Ramkumar, G. Petretto, W. Chen, H. Miranda +2 more
2022PHYSICAL REVIEW MATERIALS9 citations Open access
Semantic Scholar
Electron and x-ray diffraction studies on Al86Fe14, Al82Fe18 and Al75Fe25 quasicrystals
J. A. Sekhar, T. Rajasekharan, P. Rao, G. Parthasarathy +4 more
19867 citations
Semantic Scholar
First principles investigation of the structural, dynamical, dielectric properties of kesterite, stannite and PMCA phases of Cu$_2$ZnSnS$_4$
S. Ramkumar, Y. Gillet, A. Miglio, Michiel J. van Setten +2 more
20176 citations
Semantic Scholar
Ground-state occupancies off-p-g shell nuclei
N. Naik, S. Ramkumar, P. Shenoy, N. Tressler
19856 citations
Semantic Scholar
Revealing pressure-driven structural transitions in the hybrid improper ferroelectric Sr3Sn2O7
Kevin A. Smith, S. Ramkumar, Nathan C. Harms, A. Clune +5 more
2021Physical review B5 citations Open access
Semantic Scholar
Real-Space Infrared Spectroscopy of Ferroelectric Domain Walls in Multiferroic h-(Lu,Sc)FeO3.
Kevin A. Smith, S. Ramkumar, K. Du, Xiang-Han Xu +5 more
2023ACS Applied Materials and Interfaces3 citations Open access
Semantic Scholar
Manipulation of spin orientation via ferroelectric switching in Fe-doped <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">Bi</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">WO</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:math>
Katherine Inzani, Nabaraj Pokhrel, N. Leclerc, Zachary J. Clemens +3 more
2021Physical review B2 citations Open access
Semantic Scholar
Pressure-induced phase transition and phonon softening in h−Lu0.6Sc0.4FeO3
K. Smith, S. Ramkumar, Nathan C. Harms, A. Clune +4 more
2021Physical review B2 citations Open access
Semantic Scholar
Octahedral rotations in Ruddlesden-Popper layered oxides under pressure from first principles
S. Ramkumar, E. Nowadnick
2021Physical review B2 citations Open access
Semantic Scholar
CZTS Raman spectra beyond kesterite: a first-principles study
S. Ramkumar, H. Miranda, X. Gonze, G. Rignanese
20211 citations
Semantic Scholar
Effect of cation ordering and pressure on n=2 Ruddlesden-Popper oxides from first principles
S. Ramkumar, E. Nowadnick
20191 citations
Semantic Scholar
Octahedral rotations in Ruddlesden-Popper layered perovskites under pressure from first principles
S. Ramkumar, E. Nowadnick
20200 citations
Semantic Scholar
2 , 085403 ( 2018 ) Insights into cation disorder and phase transitions in CZTS from a first-principles approach
S. Ramkumar, A. Miglio, Michiel J. van Setten, D. Waroquiers +2 more
20180 citations
Semantic Scholar
Ab initio study of structural, thermodynamical, vibrational and electronic properties of CZTS
S. Ramkumar
20170 citations
Semantic Scholar
Electron and x-ray diffraction studies on AIg6Fex4, Alg2Fexg and Al~sFe2s quasicrystals
J. A. Sekhar, T. Rajasekharan, P. Rao, G. Parthasarathy +2 more
20080 citations
Semantic Scholar
Optimisation Of Dose Distribution In Single Planar Iridium Inplants
S. Ramkumar, A. Lakshmanan
1996Journal of Medical Physics0 citations
Semantic Scholar
Electron and x-ray diffraction studies on Al 86 Fe 14 , Al 82 Fe 18</
J. A. Sekhar, T. Rajasekharan, P. Rao, G. Parthasarathy +4 more
19860 citations
Semantic Scholar
Cvd Diamond Radiotherapy Dosimeters
M. Buttar, R. Airey, J. Conway, G. Hill +5 more
0 citations
Semantic Scholar

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