Reduced size of ordered moments of a quasi 1d antiferromagnet Sr{sub 2}CuO{sub 3} | Zendy

Kenji Kojima | Zendy; M. Larkin | Zendy; G. M. Luke | Zendy

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Reduced size of ordered moments of a quasi 1d antiferromagnet Sr{sub 2}CuO{sub 3}

Author(s) -

Kenji Kojima,

M. Larkin,

G. M. Luke

Publication year - 1996

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/373917

Subject(s) - antiferromagnetism , condensed matter physics , muon spin spectroscopy , magnetic moment , muon , physics , neutron scattering , neutron magnetic moment , spin (aerodynamics) , neutron , precession , relaxation (psychology) , inelastic neutron scattering , neutron diffraction , néel temperature , scattering , magnetization , magnetic field , electron magnetic dipole moment , nuclear physics , optics , quantum mechanics , psychology , social psychology , diffraction , thermodynamics , superconductivity

The quasi one-dimensional antiferromagnet Sr{sub 2}CuO{sub 3} exhibits Neel order of Cu{sup 2+} moments (S = 1/2) at T{sub N} = 5.41(1) K, as demonstrated by (1) almost resolution-limited magnetic Bragg reflections in neutron scattering measurements, and (2) spontaneous muon spin precession in zero-field muon spin relaxation ({mu}SR) measurements. The temperature dependence of the order parameters are consistent between the two experimental techniques. From the neutron data, the authors obtained an upper-limit for the ordered moment size of {approximately} 0.06 {mu}{sub B}. This indicates a significant moment reduction from quantum fluctuations

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