Successive phase transitions in $R_{3}$ Ir $_{4}$ Sn $_{13}$ (: La and Ce) investigated using neutron and X-ray diffraction

Nakazato, Seiya*; Iwasa, Kazuaki*; Hashimoto, Daisuke*; Shiozawa, Mami*; Kuwahara, Keitaro*; Nakao, Hironori*; Sagayama, Hajime*; Ishikado, Motoyuki*; Ohara, Takashi ; Nakao, Akiko*; Munakata, Koji*; Kiyanagi, Ryoji

Successive phase transitions of $R_{3}$ Ir $_{4}$ Sn $_{13}$ (: La and Ce) were studied using neutron and X-ray diffraction techniques. A semimetal Ce $_{3}$ Ir $_{4}$ Sn $_{13}$ undergoes three phase transitions: an antiferromagnetic ordering characterized by a propagation vector $q_{rm M}$ = (1/2, 1/2, 2/5) below 0.6 K, a structural transformation with $q_{rm S2}$ = (1/4, 1/4, 1/4) at 2.0 K, and another structural transformation with $q_{rm S1}$ = (1/2, 1/2, 0) above room temperature. La $_{3}$ Ir $_{4}$ Sn $_{13}$ was confirmed to be a superconductor below 2.5 K under the $q_{rm S1}$ = (1/2, 1/2, 0) structure that also appears above room temperature.

Language	:	English
Journal	:	JPS Conference Proceedings (Internet)
Volume	:	30
Number	:
Pages	:	p.011128_1 - 011128_6
Publication Year/Month	:	2020/03
Meeting title	:	International Conference on Strongly Correlated Electron Systems (SCES 2019)
Held date	:	2019/09
Location (city)	:	Okayama
Location (country)	:	Japan
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.7566/JPSCP.30.011128
DOI for research data	:
Keywords	:	単結晶中性子回折; SENJU
Research Facility	:	J-PARC物質・生命科学実験施設
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	総合科学研究機構; 茨城大学; 高エネルギー加速器研究機構

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Registration No. : BB20200151
JAEA Abstracts No. : 48000809
Paper Submission No. : 23086

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Successive phase transitions in IrSn (: La and Ce) investigated using neutron and X-ray diffraction

Successive phase transitions in $R_{3}$ Ir $_{4}$ Sn $_{13}$ (: La and Ce) investigated using neutron and X-ray diffraction