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Spin-resonance modes of the spin-gap magnet TlCuCl_3
V. N. Glazkov, A. I. Smirnov, H. Tanaka +1
Three kinds of magnetic resonance signals were detected in crystals of the spin-gap magnet TlCuCl_3. First, we have observed the microwave absorption due to the excitation of the t…
Sound attenuation on the Bose-Einstein condensation of magnons in TlCuCl_3
E. Ya. Sherman, P. Lemmens, B. Busse +2
We investigated experimentally and theoretically sound attenuation in the quantum spin system TlCuCl_3 in magnetic fields at low temperatures. Near the point of Bose-Einstein conde…
Field-Induced Magnetic Order and Simultaneous Lattice Deformation in TlCuCl3
O. Vyaselev, M. Takigawa, A. Vasiliev +2
We report the results of Cu and Cl nuclear magnetic resonance experiments (NMR) and thermal expansion measurements in magnetic fields in the coupled dimer spin system TlCuCl3. We f…
Neutron Scattering Study of Magnetic Ordering and Excitations in the Doped Spin Gap System Tl(CuMg)Cl
A. Oosawa, M. Fujisawa, K. Kakurai +1
Neutron elastic and inelastic scattering measurements have been performed in order to investigate the spin structure and the magnetic excitations in the impurity-induced antiferrom…
Magnetic excitations in the quantum spin system NH4CuCl3
A. Oosawa, T. Ono, K. Kakurai +1
NH4CuCl3 has two magnetization plateaus at one-quarter and three-quarters of the saturation magnetization, irrespective of the external field direction. Magnetic excitations in NH4…
Neutron Diffraction Study of the Pressure-Induced Magnetic Ordering in the Spin Gap System TlCuCl
A. Oosawa, M. Fujisawa, T. Osakabe +2
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 t…