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Related papers: Field-Effect Devices Utilizing LaAlO$_3$-SrTiO$_3$…

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Using a combination of vertical transport measurements across and lateral transport measurements along the LaAlO$_{3}$/SrTiO$_{3}$ heterointerface, we demonstrate that significant potential barrier lowering and band bending are the cause of…

Performing an analysis within density functional theory, we develop insight into the structural and electronic properties of the oxide heterostructure LaAlO3/SrTiO3. Electrostatic surface effects are decomposed from the internal lattice…

Materials Science · Physics 2015-05-13 U. Schwingenschloegl , C. Schuster

Integrating multiple properties in a single system is crucial for the continuous developments in electronic devices. However, some physical properties are mutually exclusive in nature. Here, we report the coexistence of two seemingly…

We report the formation and observation of an electron liquid in Sr$_{2-x}$La$_{x}$TiO$_4$, the quasi-two-dimensional counterpart of SrTiO$_3$, through reactive molecular-beam epitaxy and {\it in situ} angle-resolved photoemission…

Strongly Correlated Electrons · Physics 2015-09-01 Y. F. Nie , D. Di Sante , S. Chatterjee , P. D. C. King , M. Uchida , S. Ciuchi , D. G. Schlom , K. M. Shen

Carrier density and disorder are two crucial parameters that control the properties of correlated two-dimensional electron systems. In order to disentangle their individual contributions to quantum phenomena, independent tuning of these two…

Strongly Correlated Electrons · Physics 2018-07-24 Zhuoyu Chen , Hongtao Yuan , Yanwu Xie , Di Lu , Hisashi Inoue , Yasuyuki Hikita , Christopher Bell , Harold Y. Hwang

For multilayered materials, reflectivity depends on the complex dielectric function of all the constituent layers, and a detailed analysis is required to separate them. Furthermore, for some cases, new quantum states can occur at the…

Strongly Correlated Electrons · Physics 2015-01-05 Teguh Citra Asmara , Iman Santoso , Andrivo Rusydi

Domain walls in AlO$_x$/SrTiO$_3$ (ALO/STO) interface devices at low temperatures give a rise to a new signature in the electrical transport of two-dimensional carrier gases formed at the surfaces or interfaces of STO-based…

Mesoscale and Nanoscale Physics · Physics 2021-07-21 P. W. Krantz , V. Chandrasekhar

The interface between the two complex oxides LaAlO3 and SrTiO3 has remarkable properties that can be locally reconfigured between conducting and insulating states using a conductive atomic force microscope. Prior investigations of sketched…

Oxide growth with semiconductor-like accuracy has led to atomically precise thin films and interfaces that exhibit a plethora of phases and functionalities not found in the oxide bulk material. This yielded spectacular discoveries such as…

The two-carrier transport model as proposed for the two-dimensional electron gas formed at the interfaces of oxide heterostructures is investigated by means of a combined perturbation of near ultra-violet radiation and electrostatic field,…

Strongly Correlated Electrons · Physics 2012-08-21 A. Rastogi , J. J. Pulikkotil , S. Auluck , Z. Hossain , R. C. Budhani

In condensed matter physics the quasi two-dimensional electron gas at the interface of two different insulators, polar LaAlO3 on non-polar SrTiO3 (LaAlO3/SrTiO3) is a spectacular and surprising observation. This phenomenon is LaAlO3 film…

Graphene field-effect transistors are integrated with solution-processed multilayer hybrid organic-inorganic self-assembled nanodielectrics (SANDs). The resulting devices exhibit low-operating voltage (2 V), negligible hysteresis, current…

Novel low dimensional quantum phenomena are expected at (110) LaAlO3/SrTiO3 (LAO/STO) interfaces after the quasi two dimensional electron gas similar to that of (001) LAO/STO interfaces was found [G. Herranz et al., Sci. Rep. 2, 758 (2012)…

We present a study of delta ($\delta$) doping at LaTiO$_3$/SrTiO$_3$ (LTO/STO) interface with iso-structural antiferromagnetic perovskite LaCrO$_3$ (LCO) that dramatically alters the properties of the two dimensional electron gas (2-DEG) at…

Strongly Correlated Electrons · Physics 2015-06-03 Shubhankar Das , A. Rastogi , Lijun Wu , Jin-Cheng Zheng , Z. Hossain , Yimei Zhu , R. C. Budhani

The resistive switching (RS) properties as a function of temperature were studied for Ag/La$_{1-x}$Sr$_x$CoO$_3$ (LSCO) interfaces. The LSCO is a fully-relaxed 100 nm film grown by metal organic deposition on a LaAlO$_3$ substrate. Both low…

Materials Science · Physics 2016-08-03 C. Acha , A. Schulman , M. Boudard , K. Daoudi , T. Tsuchiya

Perovskite oxides exhibit a plethora of exceptional electronic properties, providing the basis for novel concepts of oxide-electronic devices. The interest in these materials is even extended by the remarkable characteristics of their…

We consider the pairing induced in a strictly 2D electron gas (2DEG) by a proximate insulating film with polarizable localized excitations. Within a model of interacting 2D electrons and localized two-level systems, we calculate the…

Strongly Correlated Electrons · Physics 2007-05-23 V. Koerting , Qingshan Yuan , P. J. Hirschfeld , T. Kopp , J. Mannhart

In this paper we use density functional theory combined with dynamical mean-field theory (DFT+DMFT) to study interface effects between thin films of the correlated metal CaVO$_3$ and the two typical substrate materials SrTiO$_3$ and…

Strongly Correlated Electrons · Physics 2021-01-04 Sophie Beck , Claude Ederer

Nanoelectronic devices embedded in the two-dimensional electron system (2DES) of a GaAs/AlGaAs heterostructure enable a large variety of applications from fundamental research to high speed transistors. Electrical circuits are thereby…

Mesoscale and Nanoscale Physics · Physics 2017-12-20 N. Bachsoliani , S. Platonov , A. D. Wieck , S. Ludwig

Two-dimensional electron gas (2DEG) formed at the interface between SrTiO3 (STO) and LaAlO3 (LAO) insulating layer is supposed to possess strong Rashba spin-orbit coupling. To date, the inverse Edelstein effect (i.e. spin-to-charge…