dorsal/arxiv
View SchemaThe ground state of the carbon atom in strong magnetic fields
| Authors | M. V. Ivanov, P. Schmelcher |
|---|---|
| Categories | |
| ArXiv ID | physics/9909031 |
| URL | https://arxiv.org/abs/physics/9909031 |
| DOI | 10.1103/PhysRevA.60.3558 |
Abstract
The ground and a few excited states of the carbon atom in external uniform magnetic fields are calculated by means of our 2D mesh Hartree-Fock method for field strengths ranging from zero up to 2.35 10^9 T. With increasing field strength the ground state undergoes six transitions involving seven different electronic configurations which belong to three groups with different spin projections S_z=-1,-2,-3. For weak fields the ground state configuration arises from the field-free 1s^2 2s^2 2p_0 2p_{-1}, S_z=-1 configuration. With increasing field strength the ground state involves the four S_z=-2 configurations 1s^22s2p_0 2p_{-1}2p_{+1}, 1s^22s2p_0 2p_{-1}3d_{-2}, 1s^22p_0 2p_{-1}3d_{-2}4f_{-3} and 1s^22p_{-1}3d_{-2}4f_{-3}5g_{-4}, followed by the two fully spin polarized S_z=-3 configurations 1s2p_02p_{-1}3d_{-2}4f_{-3}5g_{-4} and 1s2p_{-1}3d_{-2}4f_{-3}5g_{-4}6h_{-5}. The last configuration forms the ground state of the carbon atom in the high field regime \gamma>18.664. The above series of ground state configurations is extracted from the results of numerical calculations for more than twenty electronic configurations selected due to some general energetical arguments.
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"abstract": "The ground and a few excited states of the carbon atom in external uniform\nmagnetic fields are calculated by means of our 2D mesh Hartree-Fock method for\nfield strengths ranging from zero up to 2.35 10^9 T. With increasing field\nstrength the ground state undergoes six transitions involving seven different\nelectronic configurations which belong to three groups with different spin\nprojections S_z=-1,-2,-3. For weak fields the ground state configuration arises\nfrom the field-free 1s^2 2s^2 2p_0 2p_{-1}, S_z=-1 configuration. With\nincreasing field strength the ground state involves the four S_z=-2\nconfigurations 1s^22s2p_0 2p_{-1}2p_{+1}, 1s^22s2p_0 2p_{-1}3d_{-2}, 1s^22p_0\n2p_{-1}3d_{-2}4f_{-3} and 1s^22p_{-1}3d_{-2}4f_{-3}5g_{-4}, followed by the two\nfully spin polarized S_z=-3 configurations 1s2p_02p_{-1}3d_{-2}4f_{-3}5g_{-4}\nand 1s2p_{-1}3d_{-2}4f_{-3}5g_{-4}6h_{-5}. The last configuration forms the\nground state of the carbon atom in the high field regime \\gamma\u003e18.664. The\nabove series of ground state configurations is extracted from the results of\nnumerical calculations for more than twenty electronic configurations selected\ndue to some general energetical arguments.",
"arxiv_id": "physics/9909031",
"authors": [
"M. V. Ivanov",
"P. Schmelcher"
],
"categories": [
"physics.atom-ph",
"physics.space-ph"
],
"doi": "10.1103/PhysRevA.60.3558",
"title": "The ground state of the carbon atom in strong magnetic fields",
"url": "https://arxiv.org/abs/physics/9909031"
},
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