Thickness-tunable magnetic and electronic transport properties of the quasi-two-dimensional van der Waals ferromagnet Co0.27Ta S2 with disordered intercalation

Hanin Algaidi, Chenhui Zhang, Chen Liu, Dongxing Zheng, Yinchang Ma, Youyou Yuan, Xixiang Zhang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The intercalation of magnetic elements in nonmagnetic van der Waals (vdW) materials is an effective way to design different (quasi) 2D magnets and produce exotic properties. More specifically, how exactly the intercalator is distributed within the synthetic crystal can also affect the physical properties substantially. In contrast to conventional 3d transition-metal intercalates of niobium and tantalum dichalcogenides, which commonly have 2×2 or 3×3 type ordered intercalation, we report a disordered intercalation of Co atoms between the vdW gaps of 2H-tantalum disulfide (2H-TaS2). The obtained quasi-vdW ferromagnet Co0.27TaS2 shows both perpendicular magnetic anisotropy and thickness-tunable magnetic properties. More interestingly, the temperature dependence of electrical resistivity shows a semiconductorlike behavior, in contrast to the metallic feature of other analogs in this material family. This unexpected phenomenon can be understood through a variable-range hopping mechanism, which is due to highly disordered intercalation. Moreover, Co0.27TaS2 shows a side-jump scattering dominated anomalous Hall effect, which can also be related to the disordered distribution of Co intercalators.

Original languageEnglish (US)
Article number134406
JournalPhysical Review B
Volume107
Issue number13
DOIs
StatePublished - Apr 1 2023

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Thickness-tunable magnetic and electronic transport properties of the quasi-two-dimensional van der Waals ferromagnet Co0.27Ta S2 with disordered intercalation'. Together they form a unique fingerprint.

Cite this