Structural and Magnetic Behavior of a Quasi-1D Antiferromagnetic Chain Compound Cu(NCS)(2)(PYZ)

Journal Article · Wed Jan 01 00:00:00 EST 2003 · Polyhedron

DOI:https://doi.org/10.1016/S0277-5387(03)00188-8· OSTI ID:978115

Bordallo, H. N. ^[1]; Chapon, L. C. ^[2]; Manson, Jamie L ^[3]; Qualls, J. S. ^[4]; Hall, D. ^[5]; Argyriou, D. N. ^[1]

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1. Hahn-Meitner Institut, Berlin, Germany
2. ISIS Facility, Rutherford Appleton Laboratory
3. ORNL
4. University of Texas
5. American Physical Society (APS)

Synchrotron X-ray diffraction (XRD) and neutron powder diffraction (NPD) were used to determine the structure of Cu(NCS){sub 2}(pyz) (pyz=pyrazine=C{sub 4}N{sub 2}H{sub 4}), which consists of a stacking of Cu-pyz-Cu chains. While NPD measurements showed no evidence of long-range magnetic ordering, the temperature dependence of the magnetic susceptibility and magnetization suggests that the system can be adequately described on the local scale as a spin-1/2 antiferromagnet (AFM) chain with an intrachain exchange interaction J/k{sub B} = -8 K ({approx}0.7 meV). Comparison of isothermal magnetization data acquired up to 30 T at 1.6 K to a linear chain model shows excellent agreement, making this material a nearly ideal example of an isotropic Heisenberg AFM chain.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 978115
• Journal Information: Polyhedron, Vol. 14, Issue 14-17; ISSN 0277-5387
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CHAINS
DIFFRACTION
EXCHANGE INTERACTIONS
MAGNETIC SUSCEPTIBILITY
MAGNETIZATION
NEUTRONS
SYNCHROTRONS
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION