Detailed investigation of the phase transition in K${}_x$P${}_4$W${}_8$O${}_{32}$ and experimental arguments for a charge density wave due to hidden nesting

Abstract

Detailed structural and magnetotransport properties of the monophosphate tungsten bronze K${}_x$P${}_4$W${}_8$O${}_{32}$ single crystals are reported. Both galvanomagnetic and thermal properties are shown to be consistent with a charge density wave electronic transition due to hidden nesting of quasi - 1D portion of the Fermi surface. We also observe the enhancement of electronic anisotropy due to reconstruction of the Fermi surface at the Peierls transition. The resistivity presents a thermal hysteresis suggesting a first order nature characteristics of a strong coupling scenario. However, other measurements such as the change of carriers density demonstrate a second order Peierls scenario with weak coupling features. We suggest that the structural transition driven by the residual strain in the K - P - O environment is responsible for the resistivity hysteresis and modifes the Fermi surface which then helps the rise to the second order Peierls instability.

arXiv commentAccepted to PRB

References in corpus (7)

• Anharmonic suppression of Charge density wave in 2H-NbS${}_2$
• Violation of Kohler's rule by the magnetoresistance of a quasi-two-dimensional organic metal
• Sliding charge-density-wave in two-dimensional rare-earth tellurides
• Seebeck effect in the conducting LaAlO_{3}/SrTiO_{3} interface
• Muon-spin rotation measurements of the penetration depth of the Mo_3Sb_7 superconductor
• Magnetic field and pressure effects on charge density wave, superconducting, and magnetic states in Lu${}_5$Ir${}_4$Si${}_{10}$ and Er${}_5$Ir${}_4$Si${}_{10}$
• Charge Density Wave and Superconducting Properties in Single Crystals of Lu5Ir4Si10

Cited by in corpus (5)

• Magnetism and charge density waves in RNiC${}_2$ (R = Ce, Pr, Nd)
• Extended phase diagram of RNiC2 family: Linear scaling of the Peierls temperature
• Charge density wave and large non-saturating magnetoresistance in YNiC${}_2$ and LuNiC${}_2$
• Field induced suppression of charge density wave in GdNiC${}_2$
• Weak localization competes with the quantum oscillations in a natural electronic superlattice: the case of Na${}_{1.5}$(PO${}_2$)${}_4$(WO${}_3$)${}_{20}$