Doping Effects on the two-dimensional Spin Dimer Compound $SrCu_2(BO_3)_2$

G. T. Liu; J. L. Luo; T. Xiang; N. L. Wang; Z. H. Wu; X. N. Jing; D. Jin

doi:10.1103/PhysRevB.71.014441

Doping Effects on the two-dimensional Spin Dimer Compound $SrCu_2(BO_3)_2$

Strongly Correlated Electrons 2009-11-10 v1 Superconductivity

Authors: G. T. Liu , J. L. Luo , T. Xiang , N. L. Wang , Z. H. Wu , X. N. Jing , D. Jin

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Abstract

A series of compounds M $_{0.1}$ Sr $_{0.9}$ Cu $_2$ (BO $_3$ ) $_2$ with Sr substituted by M=Al, La, Na and Y were prepared by solid state reaction. XRD analysis showed that these doping compounds are isostructural to SrCu $_2$ (BO $_3$ ) $_2$ . The magnetic susceptibility from 1.9K to 300K in an applied magnetic field of 1.0T and the specific heat from 1.9K to 25K in applied fields up to 14T were measured. The spin gap is deduced from the low temperature susceptibility as well as the specific heat. It is found that the spin gap is strongly suppressed by magnetic fields. No superconductivity is observed in all four samples.

Keywords

doped magnetic materials doping in semiconductors magnetic materials and spin systems

Cite

@article{arxiv.cond-mat/0406306,
  title  = {Doping Effects on the two-dimensional Spin Dimer Compound $SrCu_2(BO_3)_2$},
  author = {G. T. Liu and J. L. Luo and T. Xiang and N. L. Wang and Z. H. Wu and X. N. Jing and D. Jin},
  journal= {arXiv preprint arXiv:cond-mat/0406306},
  year   = {2009}
}

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5 pages, 5 figurs

Doping Effects on the two-dimensional Spin Dimer Compound $SrCu_2(BO_3)_2$

Abstract

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