中文
相关论文

相关论文: Multiple conducting carriers generated in LaAlO3/S…

200 篇论文

A number of intriguing properties emerge upon the formation of the epitaxial interface between the insulating oxides LaAlO3 and SrTiO3. These properties, which include a quasi two-dimensional conducting electron gas, low temperature…

材料科学 · 物理学 2010-08-20 Hanghui Chen , Alexie M. Kolpak , Sohrab Ismail-Beigi

We study the low temperature conductivity of the electron accumulation layer induced by the very strong electric field at the surface of $\text{SrTiO}_3$ sample. Due to the strongly nonlinear lattice dielectric response, the…

介观与纳米尺度物理 · 物理学 2016-07-21 Han Fu , K. V. Reich , B. I. Shklovskii

We report on the observation of metallic behavior in thin films of oxygen-deficient SrTiO$_3$ - down to 9 unit cells - when coherently strained on (001) SrTiO$_3$ or DyScO$_3$-buffered (001) SrTiO$_3$ substrates. These films have carrier…

材料科学 · 物理学 2016-06-06 Purnima P. Balakrishnan , Urusa S. Alaan , Matthew T. Gray , Yuri Suzuki

In the presence of external off-resonance and circularly-polarized irradiation, we have derived a many-body formalism and performed a detailed numerical analysis for both the conduction and optical currents in $\alpha-\mc{T}_3$ lattices.…

介观与纳米尺度物理 · 物理学 2020-01-22 Andrii Iurov , Liubov Zhemchuzhna , Dipendra Dahal , Godfrey Gumbs , Danhong Huang

We report bulk-quality n-type SrTiO3 (n-SrTiO3) thin films fabricated by pulsed laser deposition, with electron mobility as high as 6600 cm2 V-1 s-1 at 2 K and carrier density as low as 2.0 x 10^18cm-3 (~ 0.02 at. %), far exceeding previous…

强关联电子 · 物理学 2012-11-14 Y. Kozuka , Y. Hikita , C. Bell , H. Y. Hwang

Using the bottom-up approach in a holographic setting, we attempt to study both the transport and thermodynamic properties of a generic system in 3+1 dimensional bulk spacetime. We show the exact 1/T and $T^2$ dependence of the longitudinal…

高能物理 - 理论 · 物理学 2013-05-29 Shesansu Sekhar Pal

Electrical transport of a polar heterointerface between two insulating perovskites, KTaO3 and SrTiO3, is studied. It is formed between a thin KTaO3 film deposited on a top of TiO2- terminated (100) SrTiO3 substrate. The resulting…

材料科学 · 物理学 2007-05-23 A. Kalabukhov , R. Gunnarsson , T. Claeson , D. Winkler

The rich electron correlations and highly coherent transport in reconfigurable devices sketched by a conductive atomic force microscope tip at the LaAlO3/SrTiO3 interface have enabled the oxide platform an ideal playground for studying…

介观与纳米尺度物理 · 物理学 2023-06-19 Dawei Qiu , Mengke Ha , Qing Xiao , Zhiyuan Qin , Danqing Liu , Changjian Ma , Guanglei Cheng , Jiangfeng Du

Emergent phenomena take place in symmetry-breaking systems, notably the recently discovered two-dimensional electron gas and its tunable superconductivities near the KTaO3 interfaces. Here, we synthesized perovskite Ca0.5TaO3 films along…

We have performed high field magnetotransport measurements to investigate the interface electron gas in LaAlO3/SrTiO3 heterostructures. Shubnikov-de Haas oscillations reveal several 2D conduction subbands with carrier effective masses…

Transport measurements on thin films of NdNiO$_3$ reveal a crossover to a regime of pronounced nonlinear conduction below the well-known metal-insulator transition temperature. The evolution of the transport properties at temperatures well…

强关联电子 · 物理学 2015-04-08 Will J. Hardy , Heng Ji , Evgeny Mikheev , Susanne Stemmer , Douglas Natelson

The technological conditions of oxygen content variation in epitaxial La0.7Sr0.3MnO3-{\delta} films and the peculiarities of change of their transport characteristics were investigated. The films were grown onto single crystal SrTiO3…

We report the structural and transport properties of LaNiO3 thin films prepared by pulsed laser deposition technique. To understand the effects of film thickness, lattice mismatch and grain size on transport properties, various oriented…

材料科学 · 物理学 2017-08-29 L. Cichetto , S. Sergeenkov , J. C. C. A. Diaz , E. Longo , F. M. Araujo-Moreira

La0.7Ce0.3MnO3 is a relatively new addition in the family of colossal magnetoresistive manganites where the cerium ion is believed to be in the Ce4+ state. In this paper we report an extensive study the magnetotransport properties of laser…

材料科学 · 物理学 2007-05-23 P. Raychaudhuri , S. Mukherjee , A. K. Nigam , J. John , U. D. Vaisnav , R. Pinto

Oxide heterostructures represent a unique playground for triggering the emergence of novel electronic states and for implementing new device concepts. The discovery of 2D conductivity at the $LaAlO_3/SrTiO_3$ interface has been linking for…

We study carrier transport through graphene on SrTiO$_3$ substrates by considering relative contributions of Coulomb and resonant impurity scattering to graphene resistivity. We establish that charged impurity scattering must dominate…

介观与纳米尺度物理 · 物理学 2012-08-28 S. Das Sarma , Qiuzi Li

We report on the observation of a Tc ~0.9 K superconductivity at the interface between LaAlO3 film and the 5d transition-metal oxide KTaO3(110) single crystal. The interface shows a large anisotropy of the upper critical field, and its…

The charge carrier transport in metal phthallocyanine based disordered thin films has been investigated. Charge carrier mobility in these disordered thin films strongly depends on the electric field and temperature due to hopping…

无序系统与神经网络 · 物理学 2015-06-25 Ajit Kumar Mahapatro , Subhasis Ghosh

The relative significance of quantum conductivity correction and magnetic nature of electrons in understanding the intriguing low-temperature resistivity minimum and negative magnetoresistance of the two-dimensional electron gas at…

强关联电子 · 物理学 2021-08-11 Xiaorong Zhou , Zhiqi Liu

A theory is developed for the density and temperature dependent carrier conductivity in doped three-dimensional (3D) Dirac materials focusing on resistive scattering from screened Coulomb disorder due to random charged impurities (e.g.,…

介观与纳米尺度物理 · 物理学 2015-01-20 S. Das Sarma , E. H. Hwang , Hongki Min