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The discovery of higher-temperature superconductivity in FeSe monolayers on SrTiO$_3$ (STO) substrates has sparked a surge of interest in the interface superconductivity. One point of the agreement reached to date is that modulation doping…

Superconductivity · Physics 2022-06-27 Fengmiao Li , Ilya Elfimov , George A. Sawatzky

We have found high ferromagnetic transition temperature in Mn delta-doped GaAs-based heterostructures grown on GaAs(001) substrates by molecular beam epitaxy. A 0.3 ML Mn d-doped GaAs samples showed high resistivity at low temperature and…

Materials Science · Physics 2013-05-29 Ahsan M. Nazmul , S. Sugahara , M. Tanaka

Monolayer WSe2 is a two dimensional (2D) semiconductor with a direct bandgap, and it has been recently explored as a promising material for electronics and optoelectronics. Low field effect mobility is the main constraint preventing WSe2…

Materials Science · Physics 2016-05-02 Bilu Liu , Yuqiang Ma , Anyi Zhang , Liang Chen , Ahmad N. Abbas , Yihang Liu , Chenfei Shen , Haochuan Wan , Chongwu Zhou

The doping of semiconductor materials is a fundamental part of modern technology, but the classical approaches have in many cases reached their limits both in regard to achievable charge carrier density, as well as mobility. Modulation…

Materials Science · Physics 2019-07-08 Mirko Weidner , Anne Fuchs , Thorsten J. M. Bayer , Karsten Rachut , Getnet K. Deyu , Andreas Klein

By means of first principles schemes based on magnetically constrained density functional theory and on the band unfolding technique we study the effect of doping on the conducting behaviour of the Lifshitz magnetic insulator NaOsO3.…

Strongly Correlated Electrons · Physics 2019-05-01 Sabine Dobrovits , Bongjae Kim , Michele Reticcioli , Alessandro Toschi , Sergii Khmelevskyi , Cesare Franchini

We report suppression of superconductivity in Bi4O4S3 compound by Se doping at S site. Bulk polycrystalline samples are synthesized by solid state reaction route. The Rietveld refined of XRD data of all the studied samples show that the…

Superconductivity · Physics 2014-03-05 Rajveer Jha , V. P. S. Awana

New break-junction tunneling data are reported in Bi2Sr2CaCu2O(8+delta) over a wide range of hole concentration from underdoped (Tc = 74 K) to optimal doped (Tc = 95 K) to overdoped (Tc = 48 K). The conductances exhibit sharp dips at a…

Superconductivity · Physics 2009-11-07 J. F. Zasadzinski , L. Ozyuzer , N. Miyakawa , K. E. Gray , D. G. Hinks , C. Kendziora

In-plane heterojunction tunnel field effect transistors based on monolayer transition metal dichalcogenides are studied by means of self-consistent non-equilibrium Green's functions simulations and an atomistic tight-binding Hamiltonian. We…

Mesoscale and Nanoscale Physics · Physics 2018-11-14 Jean Choukroun , Marco Pala , Shiang Fang , Efthimios Kaxiras , Philippe Dollfus

We present experimental and numerical studies of a light-emitting transistor comprising two quasi-lateral junctions between a two-dimensional electron and hole gas. These lithographically defined junctions are fabricated by etching of a…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 B. Kaestner , J. Wunderlich , T. J. B. M. Janssen

Superconducting CuxBi2Se3 has attracted significant attention as a candidate topological superconductor. Besides inducing superconductivity, the introduction of Cu atoms to this material has also been observed to produce a number of unusual…

At the LaAlO$_3$-SrTiO$_3$ interface, electronic phase transitions can be triggered by modulation of the charge carrier density, making this system an excellent prospect for the realization of versatile electronic devices. Here, we report…

Mesoscale and Nanoscale Physics · Physics 2019-09-30 A. E. M. Smink , B. Prabowo , B. Stadhouder , N. Gauquelin , J. Schmitz , H. Hilgenkamp , W. G. van der Wiel

The doping dependence of the themopower, in-plane resistivity rho_ab(T), out-of-plane resistivity rho_c(T), and susceptibility has been systematically measured for high-quality single crystal Bi2Sr2Ca2Cu3O10+delta. We found that the…

Superconductivity · Physics 2009-11-07 Takenori Fujii , Ichiro Terasaki , Takao Watanabe , Azusa Matsuda

High Electron Mobility Transistors (HEMTs) are most suitable for harsh environments as they operate reliably under extreme conditions such as high voltages, high temperatures, radiation exposure and corrosive atmospheres. In this article,…

Signal Processing · Electrical Eng. & Systems 2025-10-13 Tanjim Rahman , Trupti Ranjan Lenka

Low power consumption in both static and dynamic modes of operation is a key requirement in modern, highly scaled nanoelectronics. Tunneling field-effect transistors (TFETs) that exploit direct band-to-band tunneling of charges and exhibit…

We present the synthesis and study of the magnetic and electronic properties of NiFe2O4/{\gamma}-Al2O3/SrTiO3 heterostructure. The {\gamma}-Al2O3/SrTiO3 interface hosts a high-mobility two-dimensional electron gas (2DEG) with large…

The capacitance of a double-heterojunction structure with a wide GaAs undoped layer embedded between two selectively doped AlGaAs barriers is calculated self-consistently as a function of intensity of the in-plane magnetic field. With…

Condensed Matter · Physics 2009-10-22 T. Jungwirth , L. Smrcka

On the basis of the idea that the injecting energy will improve the conditions for the formation of Cooper pairs, a smart meta-superconductor (SMSC) was prepared by doping inhomogeneous phase of luminescent nanocomposite Y2O3:Eu3+/Ag, which…

Superconductivity · Physics 2018-11-20 Yongbo Li , Honggang Chen , Mingzhong Wang , Longxuan Xu , Xiaopeng Zhao

We present the first spintronic semiconductor field effect transistor. The injector and collector contacts of this device were made from magnetic permalloy thin films with different coercive fields so that they could be magnetized either…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 S. Gardelis , C. G Smith , C. H. W. Barnes , E. H. Linfield , D. A. Ritchie

We report the results of our investigation of magnetic, thermodynamic and dielectric properties of Ca substituted half-doped orthochromite, Dy0.6Ca0.4Fe0.5Cr0.5O3. Magnetic susceptibility and heat capacity data bring out that this compound…

Materials Science · Physics 2017-03-29 Mohit K Sharma , Tathamay Basu , K Mukherjee , E V Sampathkumaran

Nano-membrane tri-gate beta-gallium oxide (\b{eta}-Ga2O3) field-effect transistors (FETs) on SiO2/Si substrate fabricated via exfoliation have been demonstrated for the first time. By employing electron beam lithography, the minimum-sized…

Applied Physics · Physics 2022-01-05 Hagyoul Bae , Tae Joon Park , Jinhyun Noh , Wonil Chung , Mengwei Si , Shriram Ramanathan , Peide D. Ye