Diamagnetism in spinel compound

Superconducting dome associated with the suppression and re-emergence of charge density wave states upon sulfur substitution in CuIr2Te4 chalcogenides

“…χ values beyond TMI (χMI − ) and below TMI (χMI + ) are given in Table 3. Evidently, both χMI + and χMIdecrease by increasing of the doping amount of S. The magnetic step at TMI is associated to DOS at the Fermi level N(EF) by the equations: [39] ∆χ = χMI + -χMI -, and…”

“…The increase of ∆χ (see Table 3) with increasing x points to the expanding of the bandwidth at the Fermi level caused by the replacement of Te by S. The increase of both TMI and ∆χ reveal that the Peierls-like phase transition is enhanced as a result of the lattice reduction. [17] One more obvious feature is that all samples exhibit the magnetization's upturn at low temperatures ascribed to the Curie paramagnetism, [17,39] which may be produced in lattice defects [17,40,41] or paramagnetic impurities. [42,43] Thus, the following formula can be used for fitting the magnetic susceptibility below TMI:…”

“…χ values beyond T MI (χ MI − ) and below T MI (χ MI + ) are given in table 3. Evidently, both χ MI + and χ MI − decrease by increasing of the doping amount of S. The magnetic step at T MI is associated to DOS at the Fermi level N(E F ) by the equations [39]: Δχ = χ + MI − χ − MI , and χ Pauli = 3 2 Δχ = μ 0 μ 2 B N(E F ), where μ 0 represents the vacuum magneto-conductivity and μ B is Bohr magneton, respectively, Δχ is the altitude of magnetic step. The increase of Δχ (see table 3) with increasing x points to the expanding of the bandwidth at the Fermi level caused by the replacement of Te by S. The increase of both T MI and Δχ reveal that the Peierls-like phase transition is enhanced as a result of the lattice reduction [17].…”