journal article·2023-06-13

Quantified Zero Thermal Expansion in Magnetic R2Fe17-Based Intermetallic Compounds (R = Rare Earth)

Yili Cao, Takeshi Matsukawa, Alexandra Gibbs, Maxim Avdeev, Chin-Wei Wang, Hui Wu, Qing-zhen Huang, Kenji Ohoyama, Toru Ishigaki, Haowei Zhou, Qiang Li, Jun Miao, Kun Lin, Xianran Xing

Chemistry of Materials· Volume 35· Issue 11
Publisher page

Abstract

Zero thermal expansion (ZTE) has been a fascinating task for the past few decades due to its great scientific and practical merits. To realize ZTE, negative thermal expansion is typically employed by chemical substitutions on tuning structure features, which often relies on trial and error. Here, we report on exploring quantification of thermal expansion with magnetic ordering in an intermetallic class of R 2 Fe 17 (R = rare earth), which can accurately determine the ZTE composition using a documented database. It demonstrates that the magnetic ordering of the Fe-sublattice contributes to the thermal expansion anomaly through simultaneous examinations of magnetization and neutron powder diffraction. Alternative elements can be manipulated on a Fe-sublattice to control both the total ordered magnetic moments of the Fe-sublattice and Curie temperature, which tailors the temperature variation of the magnetic contributions on thermal expansion. The current work might point to a future for ZTE high throughput searches, anticipated to benefit applications.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Thermal Expansion and Ionic Conductivity · Rare-earth and actinide compounds · Magnetic and transport properties of perovskites and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China

Frontier Research Center for Applied Atomic Sciences, Graduate School of Science and Engineering, Ibaraki University, Ibaraki 319-1106, Japan

ISIS Neutron and Muon Source Science and Technology Facilities Council, Didcot OX11 0QX, U.K.

Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234, Australia

School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia

Neutron Group, National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan

NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102, United States

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China

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