Yeahan Sur

Submitted: 25 September 2025 Posted: 26 September 2025 You are already at the latest version We have investigated the evolution of CDW states and structural phases in a Cu-deficient Cu1-δTe (δ=0.016) by employing high pressure experiments and first-principles calculations.

Abstract Interplay between charge density wave (CDW) order and superconductivity (SC) in quasi-two-dimensional materials remains poorly understood due to their diverse experimental varieties. Here, we investigate the pressure-dependent electrical transport and Raman scattering spectra of 2H-Pd0.05TaSe2, which exhibits a CDW transition at TCDW = 115 K and a superconducting transition at Tc = 2.6 K at ambient pressure conditions.

1 Introduction It is widely documented that superconductivity emerges near the quantum critical point (QCP) of symmetry-broken phases.[1-9] This competing behavior, or the presence of a competing order, has led to notable speculation that quantum fluctuations of the order could play a role in superconductivity formation, thereby pairing electrons into Cooper pairs.