On Ferro- A nd Antiferro-Spin-Density Waves Describing the Incommensurate Magnetic Structure of NaYNiWO6

Hyun Joo Koo, Ravi Shankar, Fabio Orlandi, Athinarayanan Sundaresan, Myung Hwan Whangbo

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The incommensurate magnetic structure (0.47, 0, 0.49) of NaYNiWO6 exhibits unconventional spin-density waves (SDWs) along the [100] direction, in which up and down spins alternate in each half-wave. This is in contrast to conventional SDWs, in which only one type of spin is present in each half-wave. We probed the formation of these unconventional SDWs by evaluating the spin exchanges of NaYNiWO6 based on density functional theory calculations and analyzing the nature of the spin frustration in NaYNiWO6 and by noting that a SDW is a superposition of two cycloids of opposite chirality. The unconventional SDWs along the [100] direction originate from the spin-frustrated antiferromagnetic chains of Ni2+ ions along that direction, leading to conventional SDWs along the [101] direction and unconventional SDWs along the [001] direction.

Original languageEnglish
Pages (from-to)17856-17859
Number of pages4
JournalInorganic Chemistry
Volume59
Issue number24
DOIs
Publication statusPublished - 21 Dec 2020

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© 2020 American Chemical Society.

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