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We fabricate ion-gated field-effect transistors (iFET) on mechanically exfoliated multilayer MoS$_2$. We encapsulate the flake by Al$_2$O$_3$, leaving the device channel exposed at the edges only. A stable Li$^+$ intercalation in the…

Mesoscale and Nanoscale Physics · Physics 2018-10-29 Erik Piatti , Qihong Chen , Mauro Tortello , Jianting Ye , Renato S. Gonnelli

High critical-temperature superconductivity and large (colossal) magnetoresistances are two important electronic conducting phenomena found in transition metal oxides. High-Tc materials have applications such as superconducting magnets for…

Superconductivity · Physics 2007-11-30 A. C. Mclaughlin , L. Begg , C. Harrow , S. A. J. Kimber , F. Sher , J. P. Attfield

We report the experimental realization of a correlated insulating phase in 2D GaAs/AlGaAs heterostructures at low electron densities in a limited window of background disorder. This has been achieved at mesoscopic length scales, where the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Baenninger , A. Ghosh , M. Pepper , H. E. Beere , I. Farrer , P. Atkinson , D. A. Ritchie

Unlike Si, 2-dimensional (2D) Transition Metal Dichalcogenides (TMDs) offer atomically thin channels for carrier transport in FETs. Despite advantages like superior gate control, steep sub-threshold swing and high carrier mobility offered…

Applied Physics · Physics 2019-01-09 Ansh , Jeevesh Kumar , Ravi K Mishra , Srinivasan Raghavan , Mayank Shrivastava

Electrolyte gating using ionic liquid electrolytes has recently generated considerable interest as a method to achieve large carrier density modulations in a variety of materials. In noble metal thin films, electrolyte gating results in…

Materials Science · Physics 2016-03-29 Trevor A Petach , Menyoung Lee , Ryan Davis , Apurva Mehta , David Goldhaber-Gordon

Type-II heterostructures (HSs) are essential components of modern electronic and optoelectronic devices. Earlier studies have found that in type-II transition metal dichalcogenide (TMD) HSs, the dominating carrier relaxation pathway is the…

The electric properties of a model fast-ion electrolyte ((100-x)SiS2-xNa2S) glass are investigated by means of classical molecular dynamics simulations. These systems appear promising for battery applications and the conductivity is thought…

Materials Science · Physics 2025-03-31 Léo Legrand , Louis-Martin Poitras , Nicolas Sator , Matthieu Micoulaut

Chemical substitution is a promising route for the exploration of a rich variety of doping- and/or disorder-dependent collective phenomena in low-dimensional quantum materials. Here we show that transition metal dichalcogenide alloys are…

Superconductivity · Physics 2023-06-16 Wen Wan , Rishav Harsh , Paul Dreher , Fernando de Juan , Miguel M. Ugeda

Structural defects in 2D-transition metal dichalcogenides are critical in modulating their optical and electrical behavior. Nevertheless, precise defect control within the monolayer regime poses a significant challenge. Herein, a…

Mesoscale and Nanoscale Physics · Physics 2025-09-30 Anagha Gopinath , Faiha Mujeeb , Subhabrata Dhar , Jyoti Mohanty

The temperature dependence of electric transport properties of single-layer and few-layer graphene at large charge doping is of great interest both for the study of the scattering processes dominating the conductivity at different…

Mesoscale and Nanoscale Physics · Physics 2016-09-02 R. S. Gonnelli , F. Paolucci , E. Piatti , Kanudha Sharda , A. Sola , M. Tortello , Jijeesh R. Nair , C. Gerbaldi , M. Bruna , S. Borini

We systematically studied the transport properties of single crystals of $Eu_{1-x}Sr_xFe_{2-y}$Co$_{y}As_2$. Co doping can suppress the spin-density wave (SDW) ordering and induces a superconducting transition, but a resistivity reentrance…

Superconductivity · Physics 2009-08-03 Q. J. Zheng , Y. He , T. Wu , G. Wu , H. Chen , J. J. Ying , R. H. Liu , X. F. Wang , Y. L. Xie , Y. J. Yan , Q. J. Li , X. H. Chen

This paper demonstrates the high-quality tunnel barrier characteristics and layer number controlled tunnel resistance of a transition metal dichalcogenide (TMD) measuring just a few monolayers in thickness. Investigation of vertical…

Recent experiments on resonant tunneling structures comprising (Ga,Mn)As quantum wells [Ohya et al., Nature Physics 7, 342 (2011)] have evoked a strong debate regarding their interpretation as resonant tunneling features and the near…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 C. Ertler , W. Pötz

Frustrated Mott insulators such as transition metal dichalcogenides present an ideal platform for the experimental realization of externally tuned insulator-metal transition. In this paper, we present the first nonperturbative numerical…

Strongly Correlated Electrons · Physics 2022-06-14 Madhuparna Karmakar , Nyayabanta Swain

Monolayer transition metal dichalcogenides recently emerge as a new family of two-dimensional material potentially suitable for numerous applications in electronic and optoelectronic devices due to the presence of finite band gap. Many…

Materials Science · Physics 2014-01-21 Yongqing Cai , Zhaoqiang Bai , Hui Pan , Yuan Ping Feng , Boris I. Yakobson , Yong-Wei Zhang

Single layer (SL) two-dimensional transition metal dichalcogenides (TMDs), such as MoS2, ReS2, WSe2, and MoTe2 have now become the focus of intensive fundamental and applied researches due to their intriguing and tunable physical…

Systems combining superconductors with topological insulators offer a platform for the study of Majorana bound states and a possible route to realize fault tolerant topological quantum computation. Among the systems being considered in this…

RuSr$_2$GdCu$_2$O$_8$, in which magnetic order and superconductivity coexist with $T_{Magnetic}$$\gg$$T_c$, is a complex material which poses new and important questions to our understanding of the interplay between magnetic and…

Superconductivity · Physics 2009-11-10 J. E. McCrone , J. L. Tallon , J. R. Cooper , A. C. MacLaughlin , J. P. Attfield , C. Bernhard

A damping-like spin orbit torque (SOT) is a prerequisite for ultralow power spin logic devices. Here, we report on the damping-like SOT in just one monolayer of the conducting transition metal dichalcogenide (TMD) TaS$_2$ interfaced with a…

Using first principle calculations, we examine the sequence of phases in electron doped dichalcogenides, such as recently realized in field-gated MoS$_2$. Upon increasing the electron doping level, we observe a succession of semiconducting,…

Materials Science · Physics 2014-12-10 M. Rösner , S. Haas , T. O. Wehling