H. Nair

activity

20112022

most citedGriffiths phase-like behaviour and spin-phonon coupling in double perovskite Tb

_{2}

NiMnO

_{6}

120 citations · 759 across the 32 of their papers we have counts for

collaborators

Showing cond-mat.str-elShow all

22 papers · 1 filter

cond-mat.str-el2020

Nonmagnetic ground state, Crystal field effects and Heavy-fermion behaviour in the Remeika Phase: Pr $_{3}$ Ir $_{4}$ Ge $_{13}$

K. Ramesh Kumar, Michael O. Ogunbunmi, Harikrishnan S. Nair +1

We report the magnetic, electronic and transport properties of the quasi-skutterudite compound Pr $_{3}$ Ir $_{4}$ Ge $_{13}$ by means of magnetic susceptibility $χ (T)$ , electrical resistiv…

cond-mat.str-el2019★ 23 cited

Contrasting the magnetism in La $_{2 - x}$ Sr $_{x}$ FeCoO $_{6}$ ( $x$ = 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\ ( $x$ = 0, 1, 2) are contrasted using magnetization, neutron diffraction and electron paramagnetic resonance with the suppo…

cond-mat.str-el2019

Antiferromagnetism and the emergence of frustration in saw-tooth lattice chalcogenide olivines Mn $_{2}$ SiS $_{4 - x}$ Se $_{x}$ ( $x$ = 0 $\textendash$ 4)

H. Nhalil, R. Baral, B. O. Khamala +9

The magnetism in the saw-tooth lattice of Mn in the olivine chalcogenides, Mn $_{2}$ SiS $_{4 - x}$ Se $_{x}$ ( $x$ = 1$\textendash$4) is studied in detail by analyzing their magnetization, sp…

cond-mat.str-el2019★ 19 cited

Electronic and magnetic properties of quasi-skutterudite PrCo $_{2}$ Ga $_{8}$ compound

Michael O. Ogunbunmi, Buyisiwe M. Sondezi, Harikrishnan S. Nair +1

PrCo $_{2}$ Ga $_{8}$ is an orthorhombic quasi-skutterudite type compound which crystallizes in the CaCo $_{2}$ Al $_{8}$ structure type, with space group $P bam$ (No. 55). The Pr $^{3 +}$ ion has…

cond-mat.str-el2018★ 16 cited

Behavior of the breathing pyrochlore lattice Ba $_{3}$ Yb $_{2}$ Zn $_{5}$ O $_{11}$ in applied magnetic field

J. G. Rau, L. S. Wu, A. F. May +9

The breathing pyrochlore lattice material Ba $_{3}$ Yb $_{2}$ Zn $_{5}$ O $_{11}$ exists in the nearly decoupled limit, in contrast to most other well-studied breathing pyrochlore compounds. As…

cond-mat.str-el2018★ 4 cited

Hyperfine interaction and electronic spin fluctuation study on Sr $_{2 - x}$ La $_{x}$ FeCoO $_{6}$ (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-el2017★ 2 cited

Large magntocaloric effect and 3D Ising critical behaviour in Gd $_{2}$ Cu $_{2}$ In

Ramesh K. Kumar, Harikrishnan S. Nair, Baidyanath N. Sahu +2

The ternary intermetallic compound Gd $_{2}$ Cu $_{2}$ In crystallizes in Mo $_{2}$ Fe $_{2}$ B type structure with the space group $P 4/ mbm$ and we study critical behaviour and magnetocaloric effe…

cond-mat.str-el2017★ 14 cited

Pr-magnetism in the quasi-skutterudite compound PrFe $_{2}$ Al $_{8}$

Harikrishnan S. Nair, Micheal O. Ogunbunmi, C. M. N. Kumar +5

The intermetallic compound \PFA\ that possesses a three-dimensional network structure of Al polyhedra centered at the transition metal element Fe and the rare earth Pr is investiga…

cond-mat.str-el2016★ 30 cited

Hyperfine and crystal field interactions in multiferroic HoCrO $_{3}$

C M N Kumar, Y Xiao, H S Nair +5

We report a comprehensive specific heat and inelastic neutron scattering study to explore the possible origin of multiferroicity in HoCrO $_{3}$ . We have performed specific heat measu…

cond-mat.str-el2016★ 47 cited

Ferromagnetism and the Effect of Free Charge Carriers on Electric Polarization in Y_2NiMnO_6 Double Perovskite

Hariharan Nhalil, Harikrishnan S. Nair, C. M. N. Kumar +2

The double perovskite Y_2NiMnO_6 displays ferromagnetic transition at Tc = 81 K. The ferromagnetic order at low temperature is confirmed by the saturation value of magnetization (M…

cond-mat.str-el2016★ 3 cited

Exchange bias-like effect in TbFeAl intermetallic induced by atomic disorder

Harikrishnan S. Nair, André M. Strydom

Exchange bias-like effect observed in the intermetallic compound TbFeAl, which displays a magnetic phase transition at $T_{c}^{h} \approx$ 198~K and a second one at $T_{c}^{l} \approx$ 154…

cond-mat.str-el2016★ 7 cited

Double-phase transition and giant positive magnetoresistance in the quasi-skutterudite Gd $_{3}$ Ir $_{4}$ Sn $_{13}$

Harikrishnan S. Nair, Sarit K. Ghosh, Ramesh Kumar +1

The magnetic, thermodynamic and electrical/thermal transport properties of the caged-structure quasi-skutterudite Gd $_{3}$ Ir $_{4}$ Sn $_{13}$ are re-investigated. The magnetization $M(T)…

cond-mat.str-el2016★ 22 cited

Magnetic structures and magnetoelastic coupling of Fe-doped hexagonal manganites LuMn1-xFexO3 (0 < x < 0.3)

Zhendong Fu, Yinguo Xiao, Harikrishnan S. Nair +6

We have studied the crystal and magnetic structures of Fe-doped hexagonal manganites LuMn1-xFexO3 (x = 0, 0.1, 0.2, and 0.3) by using bulk magnetization and neutron powder diffract…

cond-mat.str-el2016

Field-insensitive heavy fermion features and phase transition in the caged-structure quasi-skutterudite Sm $_{3}$ Ru $_{4}$ Ge $_{13}$

Harikrishnan S. Nair, Kumar K. Ramesh, Douglas Britz +3

The robust field-insensitive heavy fermion features in Sm $_{3}$ Ru $_{4}$ Ge $_{13}$ and the magnetic phase transition at $T_{N} \approx$ 5~K are studied using magnetization $M (T)$ , specific…

cond-mat.str-el2016★ 21 cited

Magnetic structures and magnetic phase transitions in the Mn-doped orthoferrite TbFeO $_{3}$ 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 $_{3}$ 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 ( $h$ )LuMnO $_{3}$ are reported. A Néel transition at $T_{\mathrm N}…

cond-mat.str-el2015★ 17 cited

Magnetic Ordering and Crystal Field Effects in Quasi Caged Structure Compound PrFe $_{2}$ Al $_{8}$

Harikrishnan S. Nair, Sarit K. Ghosh, Ramesh Kumar K +1

The compound PrFe $_{2}$ Al $_{8}$ possesses a three-dimensional network structure resulting from the packing of Al polyhedra centered at the transition metal element Fe and the rare eart…

cond-mat.str-el2012★ 29 cited

Large Magnetoresistance and Jahn Teller effect in Sr $_{2}$ FeCoO $_{6}$

R. Pradheesh, Harikrishnan S. Nair, V. Sankaranarayanan +1

Neutron diffraction measurement on the spin glass double perovskite Sr $_{2}$ FeCoO $_{6}$ reveals site disorder as well as Co $^{3 +}$ intermediate spin state. In addition, multiple valenc…

cond-mat.str-el2012★ 8 cited

Magnetic ordering in double perovskites R $_{2}$ CoMnO $_{6}$ (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 R $_{2}$ CoMnO $_{6}$ (R = Y,Tb) by inelastic neutron scattering with a high-resolution back-scatte…

cond-mat.str-el2011★ 62 cited

Observation of spin glass state in weakly ferromagnetic Sr $_{2}$ FeCoO $_{6}$ double perovskite

R. Pradheesh, Harikrishnan S. Nair, C. M. N. Kumar +7

We report the observation of spin glass state in the double perovskite oxide Sr $_{2}$ FeCoO $_{6}$ prepared through sol-gel technique. Initial structural studies using x rays reveal…

cond-mat.str-el2011★ 120 cited

Griffiths phase-like behaviour and spin-phonon coupling in double perovskite Tb $_{2}$ NiMnO $_{6}$

Harikrishnan S. Nair, Diptikanta Swain, Hariharan N. +3

The Griffiths phase-like features and the spin-phonon coupling effects observed in Tb $_{2}$ NiMnO $_{6}$ are reported. The double perovskite compound crystallizes in monoclinic $P 2_{1} / n$ …

cond-mat.str-el2011★ 14 cited

Magnetic Order of the Hexagonal Rare Earth Manganite Dy(0.5)Y(0.5)MnO3

Joel S. Helton, Deepak K. Singh, Harikrishnan S. Nair +1

Hexagonal Dy(0.5)Y(0.5)MnO3, a multiferroic rare-earth manganite with geometrically frustrated antiferromagnetism, has been investigated with single-crystal neutron diffraction mea…

Nonmagnetic ground state, Crystal field effects and Heavy-fermion behaviour in the Remeika Phase: Pr3​Ir4​Ge13​

Contrasting the magnetism in La2−x​Srx​FeCoO6​ (x = 0, 1, 2) double perovskites: the role of electronic and cationic disorder

Antiferromagnetism and the emergence of frustration in saw-tooth lattice chalcogenide olivines Mn2​SiS4−x​Sex​ (x = 0 $\textendash$ 4)

Electronic and magnetic properties of quasi-skutterudite PrCo2​Ga8​ compound

Behavior of the breathing pyrochlore lattice Ba3​Yb2​Zn5​O11​ in applied magnetic field

Hyperfine interaction and electronic spin fluctuation study on Sr2−x​Lax​FeCoO6​ (x = 0, 1, 2) by high-resolution back-scattering neutron spectroscopy

Large magntocaloric effect and 3D Ising critical behaviour in Gd2​Cu2​In

Pr-magnetism in the quasi-skutterudite compound PrFe2​Al8​

Hyperfine and crystal field interactions in multiferroic HoCrO3​