Temperature and composition phase diagram in the iron-based ladder compounds Ba $_{1-x}$ Cs $_{x}$ Fe $_{2}$ Se $_{3}$

Hawai, Takafumi*; Nambu, Yusuke*; Ogushi, Kenya*; Du, F.*; Hirata, Yasuyuki*; Avdeev, M.*; Uwatoko, Yoshiya; Sekine, Yurina ; Fukazawa, Hiroshi; Ma, J.*; Chi, S.*; Ueda, Yutaka*; Yoshizawa, Hideki*; Sato, Taku*

We investigated the iron-based ladder compounds (Ba, Cs)Fe $_{2}$ Se $_{3}$ , whose parent compounds, BaFe $_{2}$ Se $_{3}$ and CsFe $_{2}$ Se $_{3}$ , have different space groups, formal valences of Fe and magnetic structures. Electrical resistivity, specific heat, magnetic susceptibility, X-ray diffraction and powder neutron diffraction measurements were conducted to obtain the temperature and composition phase diagram of this system. Block magnetism seen in BaFe $_{2}$ Se $_{3}$ is drastically suppressed with Cs doping. In contrast, stripe magnetism observed in CsFe $_{2}$ Se $_{3}$ more resilient to Ba doping. Novel magnetic structure appears in intermediate compositions, which is similar to the stripe magnetism of CsFe $_{2}$ Se $_{3}$ but with different inter-ladder spin configuration. Intermediate compounds show insulating behavior, nevertheless finite T-linear contribution in specific heat was obtained at low temperature.

Language	:	English
Journal	:	Physical Review B
Volume	:	91
Number	:	18
Pages	:	p.184416_1 - 184416_11
Publication Year/Month	:	2015/05
Meeting title	:
Held date	:
Location (city)	:
Location (country)	:
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.1103/PhysRevB.91.184416
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	no keyword
Research Facility	:
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:

Accesses	:	- Accesses
Web of Science® Times Cited Count	:	Times Cited Count： If you would like to get the latest times cited, please access the Web of Science®. http://www.webofknowledge.com/wos
InCites™	:	Percentile:56.79 Category:Materials Science, Multidisciplinary
Altmetrics	:

Registration No. : AA20140785
JAEA Abstracts No. :
Paper Submission No. : 28455

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.

Temperature and composition phase diagram in the iron-based ladder compounds BaCsFeSe

Temperature and composition phase diagram in the iron-based ladder compounds Ba $_{1-x}$ Cs $_{x}$ Fe $_{2}$ Se $_{3}$