Anomalous magnetotransport in the superconducting architecturally misfit layered system (PbS)1.13TaS2

Tarushi Agarwal; Chandan Patra; Poulami Manna; Shashank Srivastava; Priya Mishra; Suhani Sharma; Ravi Prakash Singh

doi:10.1103/gmcz-mw9g

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Anomalous magnetotransport in the superconducting architecturally misfit layered system (PbS)1.13TaS2

Tarushi Agarwal, Chandan Patra, Poulami Manna, Shashank Srivastava, Priya Mishra, Suhani Sharma, Ravi Prakash Singh

DOI 10.1103/gmcz-mw9g · Physical Review B

T1

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Abstract

Misfit layered compounds, naturally occurring bulk heterostructures, present a compelling alternative to artificially engineered ones, offering a unique platform for exploring correlated phases and quantum phenomena. This study investigates the magnetotransport and superconducting properties of the misfit compound (PbS)1.13TaS2, comprising alternating PbS and 1H−TaS2 layers. It exhibits distinctive transport properties, including a prominent planar Hall effect and a fourfold oscillatory butterfly-shaped anisotropic magnetoresistance. Moreover, it shows multigap two-dimensional superconductivity with a high in-plane upper critical field, exceeding the Pauli limit. The coexistence of multigap superconductivity and anomalous transport within the same material firmly positions misfit compounds as an ideal platform for realizing quantum effects in the two-dimensional limit of bulk crystals. This opens the door to the development of quantum devices with less complexity and enhanced tunability.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
(PbS)1.13TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.75	Pressure not reported	zero_resistance
(PbS)1.13TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	3	Pressure not reported	onset
(PbS)1.13TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	3	Pressure not reported	onset
(PbS)1.13TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	3	Pressure not reported	onset
TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.8	Pressure not reported	unknown