Raman fingerprint of two terahertz spin wave branches in a two-dimensional honeycomb Ising ferromagnet
نویسندگان
چکیده
منابع مشابه
Coherent two-dimensional terahertz-terahertz-Raman spectroscopy.
We present 2D terahertz-terahertz-Raman (2D TTR) spectroscopy, the first technique, to our knowledge, to interrogate a liquid with multiple pulses of terahertz (THz) light. This hybrid approach isolates nonlinear signatures in isotropic media, and is sensitive to the coupling and anharmonicity of thermally activated THz modes that play a central role in liquid-phase chemistry. Specifically, by ...
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Two-dimensional Raman-terahertz (THz) spectroscopy is presented as a multidimensional spectroscopy directly in the far-IR regime. The method is used to explore the dynamics of the collective intermolecular modes of liquid water at ambient temperatures that emerge from the hydrogen-bond networks water forming. Two-dimensional Raman-THz spectroscopy interrogates these modes twice and as such can ...
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The form factor bootstrap approach is used to compute the exact contributions in the large distance expansion of the correlation function < σ(x)σ(0) > of the twodimensional Ising model in a magnetic field at T = Tc. The matrix elements of the magnetization operator σ(x) present a rich analytic structure induced by the (multi) scattering processes of the eight massive particles of the model. The...
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چکیده ندارد.
15 صفحه اولTwo-magnon Raman scattering in a spin density wave antiferromagnet
We present the results for a model calculation of resonant two-magnon Raman scattering in a spin density wave (SDW) antiferromagnet. The resonant enhancement of the two-magnon intensity is obtained from a microscopic analysis of the photon-magnon coupling vertex. By combining magnon-magnon interactions with ‘triple resonance‘ phenomena in the vertex function the resulting intensity line shape i...
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2018
ISSN: 2041-1723
DOI: 10.1038/s41467-018-07547-6