Spin reorientation transition in the incommensurate stripe-ordered phase of La3/2Sr1/2NiO4

P. G. Freeman; A. T. boothroyd; D. Prabhakaran; D. Gonzalez; M. Enderle

doi:10.1103/PhysRevB.66.212405

Spin reorientation transition in the incommensurate stripe-ordered phase of La3/2Sr1/2NiO4

Strongly Correlated Electrons 2009-11-07 v2

Authors: P. G. Freeman , A. T. boothroyd , D. Prabhakaran , D. Gonzalez , M. Enderle

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Abstract

The spin ordering of La3/2Sr1/2NiO4 was investigated by magnetization measurements, and by unpolarized- and polarized-neutron diffraction. Spin ordering with an incommensurability epsilon ~ 0.445 is observed below T_so ~ 80 K. On cooling, a spin reorientation is observed at 57 +/- 1 K, with the spin axes rotating from 52 +/- 4 degrees to 78 +/- 3 degrees. This is the first time a spin reorientation has been observed in a La2-xSrxNiO4+delta compound having incommensurate stripe order.

Keywords

spin reorientation transition incommensurate stripe order La3/2Sr1/2NiO4 neutron diffraction magnetization

Cite

@article{arxiv.cond-mat/0208363,
  title  = {Spin reorientation transition in the incommensurate stripe-ordered phase of La3/2Sr1/2NiO4},
  author = {P. G. Freeman and A. T. boothroyd and D. Prabhakaran and D. Gonzalez and M. Enderle},
  journal= {arXiv preprint arXiv:cond-mat/0208363},
  year   = {2009}
}

Comments

REVTex 4. 4 pages including 4 figures. Minor changes to text. Accepted to be published in Physical Review B

Spin reorientation transition in the incommensurate stripe-ordered phase of La3/2Sr1/2NiO4

Abstract

Keywords

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