6533b82ffe1ef96bd1295cf1
RESEARCH PRODUCT
Field-induced ferromagnetism due to magneto-striction in 1-D helical chains
Mithun DasKari RissanenSusmita RoyPrabhat MandalAnik BhattacharyyaShouvik ChattopadhyayShyamal K. SahaBikash Kumar ShawBiswa Nath Ghoshsubject
Quantitative Biology::BiomoleculesCondensed matter physicsChemistryGeneral Chemical Engineeringchemistry.chemical_element02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesCopperChiral resolutionHelical chain0104 chemical sciencesMagnetic fieldfield-induced ferromagnetismCrystallographyFerromagnetismAtomic orbitalLattice (order)Helix0210 nano-technologyta116description
Two homochiral copper(II) helices, [Cu(μ1,3-N3)(L1)]n (1) and [Cu(μ1,3-NCO)(L2)]n (2), with end-to-end pseudohalide bridges, were synthesized using two N2O donor achiral Schiff bases via spontaneous chiral resolution. Field-induced ferromagnetic ordering due to magneto-striction in homochiral 1-D helix [Cu(μ1,3-N3)(L1)]n (1) is reported for the first time. At temperatures below 5.5 K, under a magnetic field of 1 T, orthogonality between the magnetic orbitals of copper centres increases significantly due to the contraction of lattice parameters, giving rise to long-range ferromagnetic ordering in the helical chain. The magneto-dielectric results are also indicative of the observed magneto-striction effect in the present complex 1. We believe that this study will uncover a new way to invoke long-range ferromagnetic ordering in 1-D helical chains.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-01-01 | RSC Advances |