Chiral and collinear ordering in a distorted triangular antiferromagnet
Smirnov, A. I., Svistov, L. E., Prozorova, L. A., Zheludev, A., Lumsden, M. D., Ressouche, E., Petrenko, O. A., Nishikawa, K., Kimura, S., Hagiwara, M., Kindo, K., Shapiro, A. Ya. and Demianets, L. N.. (2009) Chiral and collinear ordering in a distorted triangular antiferromagnet. Physical Review Letters, Vol.102 (No.3). Article no. 037202. ISSN 0031-9007Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.102.037202
Magnetization, specific heat, and neutron diffraction measurements are used to map out the entire magnetic phase diagram of KFe(MoO4)(2). This stacked triangular antiferromagnet is structurally similar to the famous multiferroic system RbFe(MoO4)(2). Because of an additional small crystallographic distortion, it contains two sets of inequivalent distorted magnetic triangular lattices. As a result, the spin network breaks down into two intercalated yet almost independent magnetic subsystems. One is a collinear antiferromagnet that shows a simple spin-flop behavior in applied magnetic fields. The other is a helimagnet that instead goes through a series of exotic commensurate-incommensurate phase transformations. In the various phases one observes either true three-dimensional or unconventional quasi-two-dimensional ordering.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculty of Science > Physics|
|Journal or Publication Title:||Physical Review Letters|
|Publisher:||American Physical Society|
|Official Date:||23 January 2009|
|Number of Pages:||4|
|Page Range:||Article no. 037202|
|Access rights to Published version:||Restricted or Subscription Access|
|Funder:||Warwick University, Engineering and Physical Sciences Research Council (EPSRC), KYOKUGEN, Osaka University|
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