Low temperature ballistic spin transport in the S=1/2 antiferromagnetic Heisenberg chain compound SrCuO2

H. Maeter; A. A. Zvyagin; H. Luetkens; G. Pascua; Z. Shermadini; R. Saint-Martin; A. Revcolevschi; C. Hess; B. Büchner; H. -H. Klauss

doi:10.1088/0953-8984/25/36/365601

Low temperature ballistic spin transport in the S=1/2 antiferromagnetic Heisenberg chain compound SrCuO2

Strongly Correlated Electrons 2015-06-11 v1

Authors: H. Maeter , A. A. Zvyagin , H. Luetkens , G. Pascua , Z. Shermadini , R. Saint-Martin , A. Revcolevschi , C. Hess , B. Büchner , H. -H. Klauss

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Abstract

We report zero and longitudinal magnetic field muon spin relaxation measurements of the spin S=1/2 antiferromagnetic Heisenberg chain material SrCuO2. We find that in a weak applied magnetic field B the spin-lattice relaxation rate follows a power law B^n with n=-0.9(3). This result is temperature independent for 5K < T < 300 K. Within conformal field theory and using the M\"uller ansatz we conclude ballistic spin transport in SrCuO2.

Keywords

spin transport Heisenberg chain SrCuO2 muon spin relaxation ballistic transport conformal field theory

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@article{arxiv.1208.1162,
  title  = {Low temperature ballistic spin transport in the S=1/2 antiferromagnetic Heisenberg chain compound SrCuO2},
  author = {H. Maeter and A. A. Zvyagin and H. Luetkens and G. Pascua and Z. Shermadini and R. Saint-Martin and A. Revcolevschi and C. Hess and B. Büchner and H. -H. Klauss},
  journal= {arXiv preprint arXiv:1208.1162},
  year   = {2015}
}

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Submitted in 2011

Low temperature ballistic spin transport in the S=1/2 antiferromagnetic Heisenberg chain compound SrCuO2

Abstract

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