Thermal Expansion and Volume Magnetostriction in Breathing Pyrochlore Magnets LiACr${}_4$X${}_8$ (A = Ga, In, X = O, S)

Abstract

We report thermal expansion and magnetostriction in breathing pyrochlore magnets LiACr${}_4$X${}_8$ (A = Ga, In, X = O, S) measured by a dilatometric method on sintered samples. All four of these compounds showed a large volume contraction associated with antiferromagnetic order with decreasing temperature. Above the Neél temperature, LiGaCr4S8 showed negative thermal expansion, LiInCr4O8 showed positive thermal expansion with concave-downward temperature dependence, and LiInCr4S8 showed positive forced volume magnetostriction. All these phenomena are likely caused by the complex structure-magnetism correlation within the breathing pyrochlore structure with J and J'. These results suggested that breathing pyrochlore magnets are promising for the realization of various volumetric phenomena related to their magnetism not only in the magnetically-ordered phase but also in the paramagnetic phase.

arXiv comment5 pages, 3 figures, Journal of the Physical Society of Japan, in press

References in corpus (15)

• Local spin resonance and spin-Peierls-like phase transition in a geometrically frustrated antiferromagnet
• Weyl magnons in breathing pyrochlore antiferromagnets
• Colossal magnetostriction and negative thermal expansion in the frustrated antiferromagnet ZnCr2Se4
• Breathing Pyrochlore Lattice Realized in A-Site Ordered Spinel Oxides LiGaCr4O8 and LiInCr4O8
• Rank-2 $U(1)$ spin liquid on the breathing pyrochlore lattice
• Experimental Realization of a Quantum Breathing Pyrochlore Antiferromagnet
• Breathing chromium spinels: a showcase for a variety of pyrochlore Heisenberg Hamiltonians
• Novel Phase Transitions in the Breathing Pyrochlore Lattice: 7Li-NMR on LiInCr4O8 and LiGaCr4O8
• Negative thermal expansion and magnetoelastic coupling in the breathing pyrochlore lattice material LiGaCr4S8
• Magnetic and Structural Properties of A-Site Ordered Chromium Spinel Sulfides: Alternating Antiferromagnetic and Ferromagnetic Interactions in the Breathing Pyrochlore Lattice
• Magnetic Transitions under Ultrahigh Magnetic Fields of up to 130 T in the Breathing Pyrochlore Antiferromagnet LiInCr4O8
• Spin Model for Nontrivial Magnetic Orders in the Inverse-Perovskite Antiferromagnets
• Classical Spin Nematic Transition in LiGa${}_{0.95}$In${}_{0.05}$Cr${}_4$O${}_8$
• Theory of Magnetism-Driven Negative Thermal Expansion in Inverse Perovskite Antiferromagnets
• Spin ordering induced by lattice distortions in classical Heisenberg antiferromagnets on the breathing pyrochlore lattice

Cited by in corpus (9)

• Effects of spin-lattice coupling and a magnetic field in classical Heisenberg antiferromagnets on the breathing pyrochlore lattice
• Signatures of a magnetic superstructure phase induced by ultrahigh magnetic fields in a breathing pyrochlore antiferromagnet
• Synthesis, physical and magnetic properties of CuAlCr${}_4$S${}_8$: a new Cr-based breathing pyrochlore
• Hedgehog lattice and field-induced chirality in breathing-pyrochlore Heisenberg antiferromagnets
• Large Magnetic-Field-Induced Strains in Sintered Chromium Tellurides
• Large Magnetic-Field-Induced Strain at the Magnetic Order Transition in Triangular Antiferromagnet AgCrS2
• Complex magnetic phase diagram with a small phase pocket in a three-dimensional frustrated magnet CuInCr${}_4$S${}_8$
• Large Magnetic-Field-Induced Strain at the Spin-Reorientation Transition in the A-Site Ordered Spinel Oxide LiFeCr4O8
• Breathing pyrochlore magnet CuGaCr${}_4$S${}_8$: Magnetic, thermodynamic, and dielectric properties