Magnetic order in the quasi-one-dimensional spin-1∕2molecular chain compound copper pyrazine dinitrate

2005/10/26 by T. Lancaster, S. J. Blundell, Stephen J. Blundell +9 · 4 citations
Chemistry · Materials Science · Physics and Astronomy · #Chemistry #Condensed matter physics #Crystallography #Magnetism in coordination complexes #Muon #Muon spin spectroscopy #Order (exchange) #Organic and Molecular Conductors Research #Particle physics #Physics #Physics of Superconductivity and Magnetism #Spin (aerodynamics) #Thermodynamics #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.73.020410

published as Phys. Rev. B 73, 020410(R) (2006) · 4 pages, 3 figures. Submitted to Physical Review Letters

arxiv created 2005/10/26 · openalex publication_date 2006/01/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We present evidence of magnetic order in the quasi-one-dimensional spin-1/2 molecular chain compound, copper pyrazine dinitrate Cu(C₄H₄N₂)(NO₃)₂. Zero field muon-spin relaxation measurements made at dilution refrigerator temperatures show oscillations in the measured asymmetry characteristic of a quasistatic magnetic field at the muon sites. Our measurements provide convincing evidence for long-range magnetic order below a temperature T_N=107(1)\phantom\rule0.3em0exmK. This leads to an estimate of the interchain coupling constant of \ensuremath|J^\ensuremath'\ensuremath|∕k_B=0.046\phantom\rule0.3em0exK and to a ratio of \ensuremath|J^\ensuremath'∕J\ensuremath|=4.4\ifmmode×\else\texttimes\fi10^\ensuremath-3.

Citations

• Néel Temperature of Quasi-Low-Dimensional Heisenberg Antiferromagnets
• Reduction of Ordered Moment and Néel Temperature of Quasi-One-Dimensional AntiferromagnetsSr2CuO3andCa2CuO3

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