Magnetic and Electrical Properties of Ni₃Te₂ Single Crystals Grown by Physical Vapor Transport Technique

Abstract

High‐quality Ni 3 Te 2 single crystals with length up to 6 mm are successfully grown by the physical vapor transport (PVT) technique. The crystals exhibit unique tubular structures with a hexagonal cross section. The high‐quality crystal is studied by a series of structural and morphological characterization. The physical properties including both magnetization and electrical transport are studied in detail. It is found that there exists a coexistence of weak ferromagnetism and antiferromagnetism at low temperatures. In the measured temperature range of 2–300 K, Ni 3 Te 2 shows a typical metallic behavior, and the temperature dependence of the resistivity ρ x x (T) can be well fitted by the parallel‐resistor model.

Crystal Growth and Physical Properties Evolution in Co‐Doped NiTe2 System

“…This is a typical paramagnetic behavior. To account for the temperature‐independent contribution χ 0 to the susceptibility, a modified form of the Curie–Weiss law is used [ 32,33 ] where C is the Curie constant and T C is the Curie–Weiss temperature. By fitting the experimental data, the parameters of the x = 0.79 sample are C = 8.45 × 10 −6 emu K g −1 Oe −1 , T C = −30.42 K, and χ 0 = 1.10 × 10 −7 emu g −1 Oe.…”

“…This is a typical paramagnetic behavior. To account for the temperature-independent contribution χ 0 to the susceptibility, a modified form of the Curie-Weiss law is used [32,33]…”