Si:P as a laboratory analogue for hydrogen on high magnetic field white dwarf stars
Si:P as a laboratory analogue for hydrogen on high magnetic field white dwarf stars
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DOI：
10.1038/ncomms2466
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发表时间：
2013-02-01
影响因子：
16.6
通讯作者：
Murdin, P. G.
中科院分区：
文献类型：
--
作者：
Murdin, B. N.;Li, Juerong;Murdin, P. G.
在实验室中，氢原子在10（5）T（1千兆高斯）的磁通量密度下是不可能的，这是在高场磁白色矮星上观测到的最大值，因为实际可用的磁场大约是1000倍，在这种情况下，回旋能和结合能相等。在这里，我们展示了硅中磷杂质的莱曼系列光谱的等效场，这是缩放到32.8 T的有效质量和介电常数。光谱再现高场理论的自由氢，二次塞曼分裂和强烈的混合球谐函数。他们展示了He和H-2类似物的实验方法，以及在极端野外条件下预测的结合分子He-2的研究方法。
Laboratory spectroscopy of atomic hydrogen in a magnetic flux density of 10(5) T (1 gigagauss), the maximum observed on high-field magnetic white dwarfs, is impossible because practically available fields are about a thousand times less. In this regime, the cyclotron and binding energies become equal. Here we demonstrate Lyman series spectra for phosphorus impurities in silicon up to the equivalent field, which is scaled to 32.8 T by the effective mass and dielectric constant. The spectra reproduce the high-field theory for free hydrogen, with quadratic Zeeman splitting and strong mixing of spherical harmonics. They show the way for experiments on He and H-2 analogues, and for investigation of He-2, a bound molecule predicted under extreme field conditions.