Publications by authors named "Raju Kalaivanan"
Helical spin structures are expressions of magnetically induced chirality, entangling the dipolar and magnetic orders in materials. The recent discovery of helical van der Waals multiferroics down to the ultrathin limit raises prospects of large chiral magnetoelectric correlations in two dimensions. However, the exact nature and magnitude of these couplings have remained unknown so far.
View Article and Find Full Text PDFA long-standing pursuit in materials science is to identify suitable magnetic semiconductors for integrated information storage, processing, and transfer. Van der Waals magnets have brought forth new material candidates for this purpose. Recently, sharp exciton resonances in antiferromagnet NiPS have been reported to correlate with magnetic order, that is, the exciton photoluminescence intensity diminishes above the Néel temperature.
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- Researchers successfully grew high-quality single crystals of SrMnTeO (SMTO) using a self-flux method, enabling detailed study of its properties.
- Techniques like neutron powder diffraction and single-crystal X-ray diffraction confirmed the structure, revealing distinct positions for manganese and tellurium, as well as minor defects.
- The study found a weak antiferromagnetic order at 6.6 K and indicated antiferromagnetic interactions between Mn ions, establishing SMTO as a noncentrosymmetric triangular antiferromagnet.