dorsal/arxiv
View SchemaCollinear Magnetic Structure in the Diamond Network Magnet EuTi$_2$Al$_{20}$
| Authors | Masahiro Kawamata, Ryuji Higashinaka, Takeshi Matsumura, Maxim Avdeev, Kazuaki Iwasa, Hironori Nakao, Kazumasa Hattori, Tatsuma D. Matsuda |
|---|---|
| Categories | |
| ArXiv ID | 2601.08376vv1 |
| URL | https://arxiv.org/abs/2601.08376 |
| DOI | 10.7566/JPSJ.95.024701 |
| Journal | J. Phys. Soc. Jpn. 95, 024701 (2026) |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
The magnetic structure of EuTi$_2$Al$_{20}$, in which magnetic Eu$^{2+}$ ions form a diamond network, was investigated using neutron and resonant X-ray diffraction on powder and single-crystal samples. The propagation vector was determined to be $\textbf{\textit{q}}_{\rm m}=(1,0,0)$~r.l.u. from these diffraction measurements. All possible magnetic structures in the space group $Fd\bar{3}m$ with this propagation vector were examined using the irreducible representation method and magnetic space group analysis. This magnetic structure was identified as a collinear antiferromagnetic structure with the magnetic space group $P_Inna$ (\#52.320) or $P_Inn2$ (\#34.164) under zero magnetic field. In these magnetic structure, frustration arises from competing magnetic interactions on the diamond network. These findings provide a concrete experimental reference for assessing the role of competing interactions in diamond-network magnets and motivate further studies of interaction-driven quantum states.
{
"annotation_id": "9adea2d5-5ba6-4082-a52b-ad968afec037",
"date_created": "2026-02-17T05:53:15.833000Z",
"date_modified": "2026-02-17T05:53:15.833000Z",
"file_hash": "d6e7fdfd77cfc80f7cbc424f92c6cf8579740fa720012b1640d7abb542ce9120",
"private": false,
"record": {
"abstract": "The magnetic structure of EuTi$_2$Al$_{20}$, in which magnetic Eu$^{2+}$ ions form a diamond network, was investigated using neutron and resonant X-ray diffraction on powder and single-crystal samples. The propagation vector was determined to be $\\textbf{\\textit{q}}_{\\rm m}=(1,0,0)$~r.l.u. from these diffraction measurements. All possible magnetic structures in the space group $Fd\\bar{3}m$ with this propagation vector were examined using the irreducible representation method and magnetic space group analysis. This magnetic structure was identified as a collinear antiferromagnetic structure with the magnetic space group $P_Inna$ (\\#52.320) or $P_Inn2$ (\\#34.164) under zero magnetic field. In these magnetic structure, frustration arises from competing magnetic interactions on the diamond network. These findings provide a concrete experimental reference for assessing the role of competing interactions in diamond-network magnets and motivate further studies of interaction-driven quantum states.",
"arxiv_id": "2601.08376",
"authors": [
"Masahiro Kawamata",
"Ryuji Higashinaka",
"Takeshi Matsumura",
"Maxim Avdeev",
"Kazuaki Iwasa",
"Hironori Nakao",
"Kazumasa Hattori",
"Tatsuma D. Matsuda"
],
"categories": [
"cond-mat.str-el"
],
"doi": "10.7566/JPSJ.95.024701",
"journal_ref": "J. Phys. Soc. Jpn. 95, 024701 (2026)",
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Collinear Magnetic Structure in the Diamond Network Magnet EuTi$_2$Al$_{20}$",
"url": "https://arxiv.org/abs/2601.08376",
"version": "v1"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "64b5d560-63f1-4e4a-b913-edd7c777eb27",
"id": "arXiv Dataset",
"type": "Model",
"variant": "snapshot-2026-01-17",
"version": "0.1.0"
},
"user_id": 1000002
}