Magnetotransport property of the hole-doped delafossite CuCr0.97Mg0.03O2 with a Spin-3/2 antiferromagnetic triangular sublattice

Okuda, Takashi; Oozono, Satoshi; Kihara, Takeshi; Tokunaga, Masashi

doi:10.3938/jkps.62.2168

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2019

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“…2 Several other variations of triangular lattice compounds such as the spatially anisotropic TLAF Cs 2 CuCl 4 [27][28][29][30] and the spin-1/2 equilateral TLAF Ba 3 CoSb 2 O 9 [31][32][33][34] allow for the effects of systematic perturbations on the spin-lattice coupling to be discerned. We will also discuss other examples of systems exhibiting magneto-phonon modes such as two delafossites CuCrO 2 [35][36][37][38][39][40][41] and LiCrO 2 [42][43][44] .…”

Section: Introductionmentioning

confidence: 99%

Hybridization and Decay of Magnetic Excitations in Two-Dimensional Triangular Lattice Antiferromagnets

et al. 2019

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Elementary quasiparticles in solids such as phonons and magnons occasionally have nontrivial interactions between them, as well as among themselves. As a result, their energy eigenvalues are renormalized, the quasiparticles spontaneously decay into a multi-particle continuum state, or they are hybridized with each other when their energies are close. As discussed in this review, such anomalous features can appear dominantly in quantum magnets but are not, a priori, negligible for magnetic systems with larger spin values and noncollinear magnetic structures. We review the unconventional magnetic excitations in two-dimensional triangular lattice antiferromagnets and discuss their implications on related issues.

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