peV能量尺度下的四波混频。

IF 9 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Physical review letters Pub Date : 2025-02-28 DOI:10.1103/PhysRevLett.134.086705

C Simon, D M Silevitch, T F Rosenbaum

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引用次数: 0

摘要

我们测量了无序量子Ising磁体LiHo_{0.045}Y_{0.955}F_{4}的非线性磁化率χ^{(3)}，并证明了由于相干（反）Stokes拉曼散射在~ 100 Hz （peV）能量尺度下的四波混频。χ^{(3)}的温度依赖性近似遵循（1/T）形式，具有高T截止，可以与相干自旋团中的耗散联系起来。χ^{(3)}也随横向场单调减小，接近于几个kOe以上的恒定偏移量，表明存在相干和自发拉曼散射。

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Four-Wave Mixing at peV Energy Scales.

We measure the nonlinear magnetic susceptibility χ^{(3)} of the disordered quantum Ising magnet LiHo_{0.045}Y_{0.955}F_{4} and demonstrate four-wave mixing due to coherent (anti-)Stokes Raman scattering at ∼100 Hz (peV) energy scales. The temperature dependence of χ^{(3)} approximately follows a (1/T) form, with a high-T cutoff that can be linked to dissipation in the coherent spin clusters. χ^{(3)} also decreases monotonically with a transverse field, approaching a constant offset above a few kOe, suggesting the presence of both coherent and spontaneous Raman scattering.

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来源期刊

Physical review letters 物理-物理：综合

CiteScore

16.50

自引率

7.00%

发文量

2673

审稿时长

2.2 months

期刊介绍： Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks