Pressure-Driven Sequential Lattice Collapse and Magnetic Collapse in Transition-Metal-Intercalated Compounds FexNbS2

Jiang，Zimin1; Wang，Yiming1; Jiang，Dequan1; Li，Chen1; Liu，Ke1; Wen，Ting1; Xiao，Yuming2; Chow，Paul2; Li，Shuai3; Wang，Yonggang1

2021

10.1021/acs.jpclett.1c01220

Journal of Physical Chemistry Letters   影响因子和分区

1948-7185

Volume collapse under high pressure is an intriguing phenomenon involving subtle interplay between lattice, spin, and charge. The two most important causes of volume collapse are lattice collapse (low-density to high-density) and magnetic collapse (high-spin to low-spin). Herein we report the pressure-driven sequential volume collapses in partially intercalated FexNbS2 (x = 1/4, 1/3, 1/2, 2/3). Because of the distinct interlayer atomic occupancy, the low-iron-content samples exhibit both lattice and magnetic collapses under compression, whereas the high-iron-content samples exhibit only one magnetic collapse. Theoretical calculations indicate that the low-pressure volume collapses for x = 1/4 and x = 1/3 are lattice collapses, and the high-pressure volume collapses for all four samples are magnetic collapses. The magnetic collapse involving the high-spin to low-spin crossover of Fe2+ has also been verified by in situ X-ray emission measurements. Integrating two distinct volume collapses into one material provides a rare playground of lattice, spin, and charge.

SCI ; EI

英语

NI论文

其他

WOS:000674852100015

20213010678763

Iron ; Iron compounds ; Magnetism ; Niobium compounds

Iron:545.1 ; Magnetism: Basic Concepts and Phenomena:701.2

2-s2.0-85111009811

Scopus

1.Center for High Pressure Science and Technology Advanced Research (HPSTAR),Beijing,100094,China
2.HPCAT,X-ray Science Division,Argonne National Laboratory,Argonne,60439,United States
3.Academy for Advanced Interdisciplinary Studies,Shenzhen Key Laboratory of Solid state Batteries,Guangdong Provincial Key Laboratory of Energy Materials for Electric Power,Southern University of Science and Technology,Shenzhen,518055,China

Jiang，Zimin,Wang，Yiming,Jiang，Dequan,et al. Pressure-Driven Sequential Lattice Collapse and Magnetic Collapse in Transition-Metal-Intercalated Compounds FexNbS2[J]. Journal of Physical Chemistry Letters,2021,12:6348-6353.

Jiang，Zimin.,Wang，Yiming.,Jiang，Dequan.,Li，Chen.,Liu，Ke.,...&Wang，Yonggang.(2021).Pressure-Driven Sequential Lattice Collapse and Magnetic Collapse in Transition-Metal-Intercalated Compounds FexNbS2.Journal of Physical Chemistry Letters,12,6348-6353.

Jiang，Zimin,et al."Pressure-Driven Sequential Lattice Collapse and Magnetic Collapse in Transition-Metal-Intercalated Compounds FexNbS2".Journal of Physical Chemistry Letters 12(2021):6348-6353.