Local-moment ferromagnetism and unusual magnetic domains in Fe${}_{1/4}$TaS${}_2$ crystals

Abstract

Single crystals of Fe${}_{1/4}$TaS${}_2$ have been studied by using magneto-optical (MO) imaging and radio-frequency (rf) magnetic susceptibility, $\chi$. Real time MO images reveal unusual, slow dynamics of dendritic domain formation, the details of which are strongly dependent upon magnetic and thermal history. Measurements of $\chi (T)$ show well-defined, local moment ferromagnetic transition at $T\approx 155$ K as well as thermal hysteresis for 50 K$<T<$60 K. This temperature range corresponds to the domain formation temperature as determined by MO. Together these observations provide strong evidence for local moment ferromagnetism in Fe${}_{1/4}$TaS${}_2$ crystals with large, temperature dependent magnetic anisotropy.

References in corpus (5)

• Magnetic Penetration Depth in Unconventional Superconductors
• The anomalous Hall Effect and magnetoresistance in the layered ferromagnet Fe_{1/4}TaS_2: the inelastic regime
• Precise measurements of radio-frequency magnetic susceptibility in (anti)ferromagnetic materials
• Collapse of the critical state in superconducting niobium
• Field-dependent AC susceptibility of itinerant ferromagnets

Cited by in corpus (5)

• Strongly Correlated Materials
• Very large magnetoresistance in Fe${}_{0.28}$TaS${}_2$ single crystals
• Magnetotransport in Fe-intercalated \textit{T}S${}_2$: the comparison between \textit{T} = Ti and Ta
• Structural and Magnetic Characterization of Large Area, Free-Standing Thin Films of Magnetic Ion Intercalated Dichalcogenides Mn0.25TaS2 and Fe0.25TaS2
• Anomalous magneto-optical Kerr hysteresis loops in Fe${}_{0.25}$TaS${}_2$