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arXiv · 1111.1782

Spiral magnetic structure in spin-5/2 frustrated trimerized chains in SrMn3P4O14

Masashi Hase·Vladimir Yu. Pomjakushin·Lukas Keller·Andreas Dönni·Osamu Sakai·Tao Yang·Rihong Cong·Jianhua Lin·Kiyoshi Ozawa·Hideaki Kitazawa
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Abstract

We study a spin-5/2 antiferromagnetic trimerized chain substance SrMn3P4O14 using neutron powder diffraction experiments. The coplanar spiral magnetic structure appears below T_N1 = 2.2(1) K. Values of several magnetic structure parameters change rapidly at T_N2 = 1.75(5) K, indicating another phase transition, although the magnetic structures above and below T_N2 are the qualitatively same. The spiral magnetic structure can be explained by frustration between nearest-neighbor and next-nearest-neighbor exchange interactions in the trimerized chains.

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Masashi Hase, Vladimir Yu. Pomjakushin, Lukas Keller, Andreas Dönni, Osamu Sakai, Tao Yang, Rihong Cong, Jianhua Lin, Kiyoshi Ozawa, Hideaki Kitazawa. 2011-11-08. Spiral magnetic structure in spin-5/2 frustrated trimerized chains in SrMn3P4O14. https://doi.org/10.1103/physrevb.84.184435

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