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arXiv · 1209.0235

Longitudinal magnetic excitation in KCuCl3 studied by Raman scattering under hydrostatic pressures

H. Kuroe·N. Takami·N. Niwa·T. Sekine·M. Matsumoto·F. Yamada·H. Tanaka·K. Takemura
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Abstract

We measure Raman scattering in an interacting spin-dimer system KCuCl3 under hydrostatic pressures up to 5 GPa mediated by He gas. In the pressure-induced quantum phase, we observe a one-magnon Raman peak, which originates from the longitudinal magnetic excitationand is observable through the second-order exchange interaction Raman process. We report the pressure dependence of the frequency, halfwidth and Raman intensity of this mode.

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H. Kuroe, N. Takami, N. Niwa, T. Sekine, M. Matsumoto, F. Yamada, H. Tanaka, K. Takemura. 2012-09-03. Longitudinal magnetic excitation in KCuCl3 studied by Raman scattering under hydrostatic pressures. https://doi.org/10.1088/1742-6596/400/3/032042

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