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Electron-spin resonance in quantum degenerate 2D atomic hydrogen gas

机译:量子简并二维原子氢气中的电子自旋共振

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We report on experiments where two-dimensional Bose gas of atomic hydrogen has been compressed thermally on the surface of a small cold spot covered with superfluid helium He-4 at temperatures below 100 mK. The maximum achieved surface densities, up to sigma approximate to 5 x 10(12) cm(2), are well inside the quantum degeneracy regime with sigmaLambda(2) approximate to 1.7. Detection of the adsorbed Hdown arrow atoms in situ by ESR yields direct information on the surface density and temperature profiles across the cold spot and on the mean dipolar field and interatomic interactions in the 2D gas. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 7]
机译:我们报告的实验是,在低于100 mK的温度下,二维氢玻色原子氢原子气体已在一个覆盖有超流氦He-4的小冷点的表面上被热压缩。达到的最大表面密度高达sigma约为5 x 10(12)cm(2),在sigmaLambda(2)约为1.7的量子简并范围内。通过ESR对吸附的Hdown箭头原子进行原位检测,可得出有关冷点上的表面密度和温度分布以及二维气体中平均偶极场和原子间相互作用的直接信息。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:7]

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