Evidence for realignment of the charge density wave state in ErTe${}_3$ and TmTe${}_3$ under uniaxial stress via elastocaloric and elastoresistivity measurements

Abstract

We report the evolution of a charge density wave (CDW) state in the quasi-2D rare-earth tritellurides ($R$Te${}_3$ for $R$=Er,Tm) as a function of in-plane uniaxial stress. Measurements of the elastocaloric effect, resistivity, and elastoresistivity allow us to demonstrate the importance of in-plane antisymmetric strain on the CDW and to establish a phase diagram. We show that modest tensile stress parallel to the in-plane $a$-axis can reversibly switch the direction of the ordering wavevector between the two in-plane directions. This work establishes $R$Te${}_3$ as a promising model system for the study of strain-CDW interactions in a quasi-2D square lattice.

arXiv comment18 pages, 12 figures

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Cited by in corpus (9)

• Charge density wave-generated Fermi surfaces in NdTe${}_3$
• Symmetry-breaking pathway towards the unpinned broken helix
• Ultrafast measurements under anisotropic strain reveal near equivalence of competing charge orders in TbTe${}_3$
• Melting of unidirectional charge density waves across twin domain boundaries in GdTe${}_3$
• Emergent ${\mathbb{Z}}_2$ symmetry near a CDW multicritical point
• Realization of giant elastocaloric cooling at cryogenic temperatures in TmVO${}_4$ via a strain load/unload technique
• Interplay of Kondo Physics with Incommensurate Charge Density Waves in CeTe${}_3$
• Evolution of charge-density-wave soft phonon modes in ${\mathrm{Pd}}_x{\mathrm{ErTe}}_3$
• Energetically Favored One-Dimensional Moiré Superstructure in the Pseudo-Square Lattice GdTe3