The relation between the atomic mass ratio and quartic anharmonicity in alkali metal hydrides

Feng, Minxuan; Wang, Xiaoying; Zhu, Guimei; He, Cheng; Sun, Jun; Ding, Xiangdong; Shiomi, Junichiro; Xia, Yi; Li, Baowen; Gao, Zhibin

doi:10.1016/j.mtphys.2024.101423

Materials Today Physics

2024

DOI: 10.1016/j.mtphys.2024.101423

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The relation between the atomic mass ratio and quartic anharmonicity in alkali metal hydrides

Minxuan Feng,

Xiaoying Wang,

Guimei Zhu

et al.

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2024

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Cited by 2 publications

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Experimental and Theoretical Evidence of Weak Spin–Lattice Coupling in the Double Perovskite Sr₂YRuO₆

Liu,

Poojitha,

Lin

et al. 2024

J Raman Spectroscopy

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Sr2YRuO6 is a material that provides an ideal platform for studying magnetic frustration in three‐dimensional geometries. Herein, we combine Raman spectroscopy and density functional theory calculations to establish connections between the lattice dynamics and magnetic states in Sr2YRuO6 single crystals. The x‐ray diffraction profiles reveal that Sr2YRuO6 possesses an ordered double‐perovskite structure with distorted monoclinic symmetry. Three magnetic phase transitions are observed and linked to the presence of weak ferromagnetism at 135 K and short‐ and long‐range antiferromagnetic orderings at 32 and 26 K. The oxygen‐octahedron antistretching and stretching modes, observed at 570 and 766 cm−1, exhibit anomalies near the magnetic phase transition temperatures, indicating an intriguing interplay between the lattice and spin degrees of freedom. Their spin–phonon coupling constants of 0.7 cm−1 reflect the weak spin–lattice interactions in Sr2YRuO6.

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Experimental and Theoretical Evidence of Weak Spin–Lattice Coupling in the Double Perovskite Sr₂YRuO₆

Liu,

Poojitha,

Lin

et al. 2024

J Raman Spectroscopy

View full text Add to dashboard Cite

show abstract

Radiative thermal diode driven by the synergy between isotope engineering and lattice thermal expansion

Yuan,

Guo,

Zhou

et al. 2024

Phys. Rev. B

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The relation between the atomic mass ratio and quartic anharmonicity in alkali metal hydrides

Cited by 2 publications

References 54 publications

Experimental and Theoretical Evidence of Weak Spin–Lattice Coupling in the Double Perovskite Sr₂YRuO₆

Experimental and Theoretical Evidence of Weak Spin–Lattice Coupling in the Double Perovskite Sr₂YRuO₆

Radiative thermal diode driven by the synergy between isotope engineering and lattice thermal expansion

Contact Info

Product

Resources

About

The relation between the atomic mass ratio and quartic anharmonicity in alkali metal hydrides

Cited by 2 publications

References 54 publications

Experimental and Theoretical Evidence of Weak Spin–Lattice Coupling in the Double Perovskite Sr2YRuO6

Experimental and Theoretical Evidence of Weak Spin–Lattice Coupling in the Double Perovskite Sr2YRuO6

Radiative thermal diode driven by the synergy between isotope engineering and lattice thermal expansion

Contact Info

Product

Resources

About

Experimental and Theoretical Evidence of Weak Spin–Lattice Coupling in the Double Perovskite Sr₂YRuO₆

Experimental and Theoretical Evidence of Weak Spin–Lattice Coupling in the Double Perovskite Sr₂YRuO₆