activity
20032022
most citedLattice and magnetic instabilities in CaFe2As2: A single crystal neutron diffraction study

317 citations · 1.7k across the 46 of their papers we have counts for

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21 papers · 1 filter

cond-mat.str-el2019★ 23 cited

Contrasting the magnetism in LaSrFeCoO ( = 0, 1, 2) double perovskites: the role of electronic and cationic disorder

G. R. Haripriya, C. M. N. Kumar, R. Pradheesh +8

The magnetism of the double perovskite compounds \SLFCOx\ ( = 0, 1, 2) are contrasted using magnetization, neutron diffraction and electron paramagnetic resonance with the suppo…

cond-mat.str-el2018★ 1 cited

Hyperfine interaction in cobalt by high-resolution neutron spectroscopy

Tapan Chatterji, Michaela Zamponi, Joachim Wuttke

We have investigated the ferromagnetic phase transition of elemental Co by high-resolution neutron backscattering spectroscopy. We monitored the splitting of the nuclear levels by…

cond-mat.str-el2018★ 4 cited

Hyperfine interaction and electronic spin fluctuation study on SrLaFeCoO (x = 0, 1, 2) by high-resolution back-scattering neutron spectroscopy

T. Chatterji, B. Frick, M. Zamponi +6

The study of hyperfine interaction by high-resolution inelastic neutron scattering is not very well known compared to the other competing techniques viz. NMR, Mössbauer, PACS etc.…

cond-mat.str-el2016★ 9 cited

Spin waves in the AF state of the - Hubbard model on the fcc lattice: competing interactions, frustration, and instabilities

Avinash Singh, Shubhajyoti Mohapatra, Timothy Ziman +1

Spin waves in the type-III ordered antiferromagnetic state of the frustrated - Hubbard model on the fcc lattice are calculated to investigate finite--induced competing in…

cond-mat.str-el2016★ 21 cited

Magnetic structures and magnetic phase transitions in the Mn-doped orthoferrite TbFeO studied by neutron powder diffraction

Harikrishnan S. Nair, Tapan Chatterji, C. M. N. Kumar +4

The magnetic structures and the magnetic phase transitions in the Mn-doped orthoferrite TbFeO studied using neutron powder diffraction are reported. Magnetic phase transitions…

cond-mat.str-el2015★ 13 cited

Spin-Lattice Coupling and Frustrated Magnetism in Fe-doped Hexagonal LuMnO3

Harikrishnan S. Nair, Zhendong Fu, C. M. N. Kumar +4

Strong spin-lattice coupling and prominent frustration effects observed in the 50 Fe-doped frustrated hexagonal ()LuMnO are reported. A Néel transition at $T_{\mathrm N}…

cond-mat.str-el2015★ 6 cited

Origin of anomalous breakdown of Bloch's rule in the Mott-Hubbard insulator MnTe

Tapan Chatterji, Antonio M. dos Santos, Jamie J. Molaison +5

We reinvestigate the pressure dependence of the crystal structure and antiferromagnetic phase transition in MnTe by the rigorous and reliable tool of high pressure neutron powd…

cond-mat.str-el2015★ 9 cited

Spin-driven symmetry breaking in the frustrated fcc magnet MnS2

Simon A. J. Kimber, Tapan Chatterji

We report the characterisation of natural samples of the cubic pyrite mineral MnS2 using very high resolution synchrotron X-ray diffraction techniques. At low temperatures we find…

cond-mat.str-el2013★ 4 cited

Direct evidence of nuclear spin waves in NdCuO by high-resolution neutron-spin-echo spectroscopy

Tapan Chatterji, Olaf Holderer, Harald Schneider

We investigated the dispersion of nuclear spin waves in NdCuO by using neutron spin-echo spectroscopy at millikelvin temperatures. Our results show unambiguously the existe…

cond-mat.str-el2013★ 48 cited

Giant pressure-induced volume collapse in the pyrite mineral MnS2

Simon A. J. Kimber, Ashkan Salamat, Shaun R. Evans +8

Dramatic volume collapses under pressure are fundamental to geochemistry and of increasing importance to fields as diverse as hydrogen storage and high-temperature superconductivit…

cond-mat.str-el2012

Magnetoelastic effects in multiferroic HoMnO

Tapan Chatterji, Thomas Hansen, Simon A. J. Kimber +1

We have investigated magnetoelastic effects in multiferroic HoMnO below the antiferromagnetic phase transition K by neutron powder diffraction. The lattice par…

cond-mat.str-el2012★ 17 cited

Magnetoelastic effects in multiferroic YMnO

Tapan Chatterji, Bachir Ouladdiaf, Paul F. Henry +1

We have investigated magnetoelastic effects in multiferroic YMnO below the antiferromagnetic phase transition, K, using neutron powder diffraction. The lat…

cond-mat.str-el2012★ 8 cited

Magnetic ordering in double perovskites RCoMnO (R= Y,Tb) investigated by high resolution neutron spectroscopy

Tapan Chatterji, Bernhard Frick, Harikrishnan S. Nair

We have investigated low energy nuclear spin excitations in double perovskite compounds RCoMnO (R = Y,Tb) by inelastic neutron scattering with a high-resolution back-scatte…

cond-mat.str-el2011★ 7 cited

Direct evidence for the magnetic ordering of Nd ions in NdMnSi and NdMnGe by high resolution inelastic neutron scattering

T. Chatterji, J. Combet, B. Frick +1

We have investigated the low energy nuclear spin excitations in NdMnSi and NdMnGe by high resolution inelastic neutron scattering. Previous neutron diffraction inve…

cond-mat.str-el2011★ 42 cited

Magnetoelastic effects in Jahn-Teller distorted CrF and CuF studied by neutron powder diffraction

Tapan Chatterji, Thomas C. Hansen

We have studied the temperature dependence of crystal and magnetic structures of the Jahn-Teller distorted transition metal difluorides CrF and CuF by neutron powder diffra…

cond-mat.str-el2011★ 8 cited

Weak ferromagnetism and magnetic phase transitions in GdCuO

P. J. Brown, T. Chatterji

We report a polarised neutron study of the magnetic structures and phase trasitions in \gdc\ in low magnetic fields. These experiments have been complemented by integrated intensit…

cond-mat.str-el2011

Dynamical Response of Single Bi-layer Spin Model : A Theoretical Analysis

R. Chaudhury, F. Demmel, T. Chatterji

The spin dynamics of a single bi-layer ferromagnetic model, as proposed for a manganite system as an approximate minimal model, is studied both below…

cond-mat.str-el2010★ 10 cited

Magnetisation distribution in the tetragonal phase of BaFe2As2

P. J. Brown, T. Chatterji, A. Stunault +6

We have determined the spatial distribution of the magnetisation induced by a field of 9 T in the tetragonal phase of BaFe2As2 using polarised neutron diffraction. Magnetic structu…

cond-mat.str-el2010★ 3 cited

Soft X-ray resonant scattering study of single-crystal LaSrMnO

H. -F. Li, Y. Su, Tapan Chatterji +5

Soft X-ray resonant scattering studies at the Mn - and the La - edges of single-crystal LaSrMnO are reported. At low temperatu…

cond-mat.str-el2008★ 156 cited

Crystal structure and physical properties of half-doped manganite nanocrystals with size < 100nm

Tapati Sarkar, Barnali Ghosh, A. K. Raychaudhuri +1

In this paper we report the structural and property (magnetic and electrical transport) measurements of nanocrystals of half-doped (LCMO) synthesize…

cond-mat.str-el2003★ 16 cited

Volume contraction at the Jahn-Teller transition of LaMnO

T. Maitra, P. Thalmeier, T. Chatterji

We have studied the volume collapse of LaMnO at the Jahn- Teller (JT) transition temperature T=750 K which has recently been found in high temperature powder x- ray and…