2003/01/30 by A. Oosawa, Akira Oosawa, Masashi Fujisawa +7 · 64 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Ambient pressure #Antiferromagnetism #Band gap #Bragg's law #Condensed matter physics #Diffraction #Hydrostatic pressure #Inelastic neutron scattering #Magnetic field #Magnetic structure #Magnetization #Materials science #Neutron #Neutron diffraction #Neutron scattering #Nuclear physics #Optics #Organic and Molecular Conductors Research #Physics #Physics of Superconductivity and Magnetism #Spin (aerodynamics) #Spin structure #Thermodynamics #cond-mat.str-el
paper · pdf · open access · doi:10.1143/jpsj.72.1026
published in Journal of the Physical Society of Japan 72(5), 1026-1029 (Physical Society of Japan) · 4 pages, 3 figures, 3 eps files, jpsj2.cls style
arxiv created 2003/01/30 · openalex publication_date 2003/05/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Neutron elastic scattering measurements have been performed under the hydrostatic pressure in order to investigate the spin structure of the pressure-induced magnetic ordering in the spin gap system TlCuCl3. Below the ordering temperature T\rm N=16.9 K for the hydrostatic pressure P=1.48 GPa, magnetic Bragg reflections were observed at the reciprocal lattice points \mib Q=(h, 0, l) with integer h and odd l, which are equivalent to those points with the lowest magnetic excitation energy at ambient pressure. This indicates that the spin gap closes due to the applied pressure. The spin structure of the pressure-induced magnetic ordered state for P=1.48 GPa was determined.