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Hidden-orders of uranium compounds
by Hisatomo Harima
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Submission summary
| Authors (as registered SciPost users): | Hisatomo Harima |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202208_00031v1 (pdf) |
| Date submitted: | 2022-08-15 11:14 |
| Submitted by: | Harima, Hisatomo |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | International Conference on Strongly Correlated Electron Systems (SCES2022) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Phenomenological |
Abstract
Hidden order is often discussed in strongly correlated electron systems. In many cases, it shows no magnetic responses, so that the order parameter is electric, but accompanies few lattice distortion. In the Jahn-Teller cases, the ordered state gains its energy by changing inter-site mixing strengths, leading a larger structural distortion with lowering symmetry. On the contrary, in strongly correlated electron systems, the strong intra-site Coulomb energy causes the the symmetry lowering. It is not necessary to bring the lattice distortion for lowering local site symmetry. In fact, lower symmetry of electric states than the symmetry of the crystal structure can be found for UTe2, UGe2 similarly for URu2Si2.
Current status:
Has been resubmitted
Anonymous on 2022-11-02 [id 2973]
This paper studies the general aspects of hidden orders in f-electron compounds. The author points out on the basis of the group theory that there is a class of electronic symmetry breakings which does not cause any atomic displacement in the original lattice structures. In such cases, it is expected that some experiments would overlook the sign of the orders. In particular, he discusses the possible types of order parameters in URu2Si2, UTe2, and UGe2, where the latter two are the newly discovered exotic superconductors. Although the theory is not conclusive, the paper raises a new possibility for the hidden orders in those compounds, which can attract an interest of the experimentalists. Therefore, I would like to recommend the publication of the paper. But there are too many typos listed below and they should be corrected before the publication.
Abstract, electric states —> electronic state ?
P1 2nd paragraph, electric symmetry —> electronic symmetry ?
P2 2nd paragraph,
[1], —> [1].
Even if the site symmetry is lowered, it cannot —> it can ?
P2 5th paragraph, Two tellurium —> two
P3 1st paragraph, Although he —> the
P4 4th paragraph, The grand state —> ground
Lower to 2.. —> 2mm ?
P5 1st paragraph, suggestes —> suggests
P5 6th paragraph, a several phases —> several phases