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Iridates from the molecular side.

Abstract：

:New exotic phenomena have recently been discovered in oxides of paramagnetic Ir(4+) ions, widely known as 'iridates'. Their remarkable properties originate from concerted effects of the crystal field, magnetic interactions and strong spin-orbit coupling, characteristic of 5d metal ions. Despite numerous experimental reports, the electronic structure of these materials is still challenging to elucidate, and not attainable in the isolated, but chemically inaccessible, [IrO6](8-) species (the simplest molecular analogue of the elementary {IrO6}(8-) fragment present in all iridates). Here, we introduce an alternative approach to circumvent this problem by substituting the oxide ions in [IrO6](8-) by isoelectronic fluorides to form the fluorido-iridate: [IrF6](2-). This molecular species has the same electronic ground state as the {IrO6}(8-) fragment, and thus emerges as an ideal model for iridates. These results may open perspectives for using fluorido-iridates as building-blocks for electronic and magnetic quantum materials synthesized by soft chemistry routes.

journal_name

Nat Commun

journal_title

Nature communications

authors

Pedersen KS,Bendix J,Tressaud A,Durand E,Weihe H,Salman Z,Morsing TJ,Woodruff DN,Lan Y,Wernsdorfer W,Mathonière C,Piligkos S,Klokishner SI,Ostrovsky S,Ollefs K,Wilhelm F,Rogalev A,Clérac R

doi

10.1038/ncomms12195

subject

Has Abstract

pub_date

2016-07-20 00:00:00

pages

12195

issn

2041-1723

pii

ncomms12195

journal_volume

7

pub_type

杂志文章

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