Transport signatures of temperature-induced chemical potential shift and Lifshitz transition in layered type-II Weyl semimetal TaIrTe<sub>4</sub>

Yu, Jianying; Wu, Quansheng; Yang, Meng; Qi, Feng; Duan, Junxi; Chen, Dongyun; Wang, Qinsheng; Xiao, Wende; Shi, Youguo; Yazyev, Oleg V.; Yao, Yugui

doi:10.1088/2053-1583/abc13f

Cited by 10 publications

(3 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5), respectively, using the electrical conductivity (σ c ) values given in Supplementary Table 2 (obtained using the electrical conductivity of Py layer, σ Py = 21:3 × 10 5 Ω À1 m À1 ). The obtained electrical conductivity values for TaIrTe 4 are in close agreement with the earlier reports 23,26 .…”

supporting

confidence: 92%

“…The topological Weyl semimetal candidate TaIrTe 4 has gained significant attention as it shows the presence of bulk Weyl nodes and Fermi-arc surface states, which are unique band crossings in momentum space and useful spin textures that can give a variety of unusual electronic and charge-to-spin conversion properties [22][23][24][25][26] . The combination of topological spin textures and lower crystal symmetry hence makes TaIrTe 4 a promising candidate for energy-efficient SOT devices.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Large out-of-plane spin–orbit torque in topological Weyl semimetal TaIrTe4

Bainsla,

Zhao,

Behera

et al. 2024

Nat Commun

View full text Add to dashboard Cite

The unique electronic properties of topological quantum materials, such as protected surface states and exotic quasiparticles, can provide an out-of-plane spin-polarized current needed for external field-free magnetization switching of magnets with perpendicular magnetic anisotropy. Conventional spin–orbit torque (SOT) materials provide only an in-plane spin-polarized current, and recently explored materials with lower crystal symmetries provide very low out-of-plane spin-polarized current components, which are not suitable for energy-efficient SOT applications. Here, we demonstrate a large out-of-plane damping-like SOT at room temperature using the topological Weyl semimetal candidate TaIrTe4 with a lower crystal symmetry. We performed spin–torque ferromagnetic resonance (STFMR) and second harmonic Hall measurements on devices based on TaIrTe4/Ni80Fe20 heterostructures and observed a large out-of-plane damping-like SOT efficiency. The out-of-plane spin Hall conductivity is estimated to be (4.05 ± 0.23)×104 (ℏ ⁄ 2e) (Ωm)−1, which is an order of magnitude higher than the reported values in other materials.

show abstract

supporting

confidence: 92%

mentioning

confidence: 99%

Large out-of-plane spin–orbit torque in topological Weyl semimetal TaIrTe4

Bainsla,

Zhao,

Behera

et al. 2024

Nat Commun

View full text Add to dashboard Cite

show abstract

“…Temperature-induced Lifshitz transitions are also observed in other TSMs, for example, MTe 5 (M = Zr, Hf) 26 , 27 , InTe 1-δ 28 , ZrSiSe 29 , WTe 2 30 , and TaIrTe 4 31 . Anomalies in both longitudinal resistivity and Hall resistivity/coefficient can be found in MTe 5 (M = Zr, Hf) 26 , 27 , InTe 1-δ 28 , and ZrSiSe 29 , but not in WTe 2 30 and TaIrTe 4 31 . Since we have observed the change of Hall resistivity in EuAs 3 (Fig.…”

Section: Discussionmentioning

confidence: 86%

Magnetism-induced topological transition in EuAs3

et al. 2021

View full text Add to dashboard Cite

The nature of the interaction between magnetism and topology in magnetic topological semimetals remains mysterious, but may be expected to lead to a variety of novel physics. We systematically studied the magnetic semimetal EuAs3, demonstrating a magnetism-induced topological transition from a topological nodal-line semimetal in the paramagnetic or the spin-polarized state to a topological massive Dirac metal in the antiferromagnetic ground state at low temperature. The topological nature in the antiferromagnetic state and the spin-polarized state has been verified by electrical transport measurements. An unsaturated and extremely large magnetoresistance of ~2 × 105% at 1.8 K and 28.3 T is observed. In the paramagnetic states, the topological nodal-line structure at the Y point is proven by angle-resolved photoemission spectroscopy. Moreover, a temperature-induced Lifshitz transition accompanied by the emergence of a new band below 3 K is revealed. These results indicate that magnetic EuAs3 provides a rich platform to explore exotic physics arising from the interaction of magnetism with topology.

show abstract

Intrinsic anomalous Hall effect and Lifshitz transition in a ferromagnetic kagome-lattice metal

Wang

Tan

2022

Applied Physics Letters

View full text Add to dashboard Cite

Magnetic topological materials with broken time-reversal symmetry have demonstrated colossal intrinsic anomalous Hall effects, originating from large Berry curvature in momentum space. Here, we report the electrical transport study of a ferromagnetic kagome-lattice material Nd3Al, which is predicted to be a magnetic topological high symmetry line metal candidate. We observed a polarity reversal of ordinary Hall resistivity across 40 K, plainly indicating a perceptible shift in chemical potential and change of the Fermi surface, i.e., temperature-induced Lifshitz transition. More strikingly, as the shifting of Fermi level around the band (anti-)crossing points contributes to a considerable Berry curvature, the anomalous Hall conductivity ultimately stabilizes to a constant of approximately ∼427 [Formula: see text] cm−1 below 40 K, accompanied by a maximum anomalous Hall angle reaching 1.4%, conforming to the intrinsic dissipationless topological Berry-phase mechanism. The similar scaling behavior of anomalous Hall conductivity in Nd3Al to that of magnetic Weyl semimetal Co3Sn2S2 further signals the possible presence of nontrivial topological bands in kagome Nd3Al. In view of the kagome-lattice structure and predicted topological nature, our work unveils the significant potential of the large intrinsic anomalous Hall effect in Nd3Al for investing the interaction between ferromagnetism and topology.

show abstract

Transport signatures of temperature-induced chemical potential shift and Lifshitz transition in layered type-II Weyl semimetal TaIrTe₄

Cited by 10 publications

References 48 publications

Large out-of-plane spin–orbit torque in topological Weyl semimetal TaIrTe4

Large out-of-plane spin–orbit torque in topological Weyl semimetal TaIrTe4

Magnetism-induced topological transition in EuAs3

Intrinsic anomalous Hall effect and Lifshitz transition in a ferromagnetic kagome-lattice metal

Contact Info

Product

Resources

About

Transport signatures of temperature-induced chemical potential shift and Lifshitz transition in layered type-II Weyl semimetal TaIrTe4

Cited by 10 publications

References 48 publications

Large out-of-plane spin–orbit torque in topological Weyl semimetal TaIrTe4

Large out-of-plane spin–orbit torque in topological Weyl semimetal TaIrTe4

Magnetism-induced topological transition in EuAs3

Intrinsic anomalous Hall effect and Lifshitz transition in a ferromagnetic kagome-lattice metal

Contact Info

Product

Resources

About

Transport signatures of temperature-induced chemical potential shift and Lifshitz transition in layered type-II Weyl semimetal TaIrTe₄