Detection of multipolar orders in the spin-orbit-coupled <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>5</mml:mn><mml:mi>d</mml:mi></mml:mrow></mml:math> Mott insulator <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">B</mml:mi><mml:msub><mml:mi mathvariant="normal">a</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi>MgRe</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>
Daigorou Hirai, Hajime Sagayama, Shang Gao, Hiroyuki Ohsumi, Gang Chen, Taka-hisa Arima, Zenji Hiroi
Abstract
The authors investigate electronic phases of spin--orbit-entangled 5d electrons in the transition metal compound Ba2MgReO6. They observe quadrupolar order composed of antiferroically arranged Qx2--y2 and ferroically arranged Q3z2--r2 moments in addition to unusual canted antiferromagnetic order stabilized by the quadrupolar order.
Topics & Concepts
Condensed matter physicsAntiferromagnetismPhysicsElectronMaterials scienceMetal–insulator transitionElectronic structureMott insulatorPhase diagramFerromagnetismMagnetic momentTransition metalOrder (exchange)Insulator (electricity)Phase transitionMetalAdvanced Condensed Matter PhysicsMagnetic and transport properties of perovskites and related materialsTopological Materials and Phenomena