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Transparent conductive oxides (TCO) enable confinement of charge-sensitive ions and Rydberg atoms proximal to dielectric structures including waveguides and photon detectors. However, optical loss precludes the use of TCOs within…

Quantum Physics · Physics 2025-06-04 Wance Wang , Dhruv Fomra , Amit Agrawal , Henri J. Lezec , Joseph W. Britton

Transparent conducting oxides have recently gained great attention as CMOS-compatible materials for applications in nanophotonics due to their low optical loss, metal-like behavior, versatile/tailorable optical properties, and established…

Optics · Physics 2015-07-27 N. Kinsey , C. DeVault , J. Kim , M. Ferrera , V. M. Shalaev , A. Boltasseva

We report on experiments of spin filtering through ultra-thin single-crystal layers of the insulating and ferromagnetic oxide BiMnO3 (BMO). The spin polarization of the electrons tunneling from a gold electrode through BMO is analyzed with…

Materials Science · Physics 2009-11-11 M. Gajek , M. Bibes , A. Barthelemy , K. Bouzehouane , S. Fusil , M. Varela , J. Fontcuberta , A. Fert

RF sputtered ZnO and Al:ZnO films are attractive transparent conductive oxides for fabrication of opto-electronic devices. In this paper we present efforts to control carrier concentration and mobility of ZnO/Al:ZnO thin films by…

Materials Science · Physics 2014-04-22 Navid M. S. Jahed , Siva Sivoththaman

Thin film lithium niobate (TFLN) based electro-optic modulator is widely applied in the field of broadband optical communications due to its advantages such as large bandwidth, high extinction ratio, and low optical loss, bringing new…

A novel thin-film LiNbO3 (TFLN) electro-optic modulator is proposed and demonstrated. LiNbO3-silica hybrid waveguide is adopted to maintain low optical loss for an electrode spacing as narrow as 3 {\mu}m, resulting in a record low…

Applied Physics · Physics 2021-03-08 Xuecheng Liu , Bing Xiong , Changzheng Sun , Jian Wang , Zhibiao Hao , Lai Wang , Yanjun Han , Hongtao Li , Jiadong Yu , Yi Luo

Wide bandgap oxide semiconductors are very promising channel candidates for next-generation electronics due to their large-area manufacturing, high-quality dielectrics, low contact resistance, and low leakage current. However, the absence…

Mesoscale and Nanoscale Physics · Physics 2024-08-15 Linqiang Xu , Liya Zhao , Chit Siong Lau , Pan Zhang , Lianqiang Xu , Qiuhui Li , Shibo Fang , Yee Sin Ang , Xiaotian Sun , Jing Lu

We fabricate and characterize dual-gated graphene field-effect transistors (FETs) using Al2O3 as top-gate dielectric. We use a thin Al film as a nucleation layer to enable the atomic layer deposition of Al2O3. Our devices show mobility…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Seyoung Kim , Junghyo Nah , Insun Jo , Davood Shahrjerdi , Luigi Colombo , Zhen Yao , Emanuel Tutuc , Sanjay K. Banerjee

The performance of n-type amorphous oxide semiconductor thin-film transistors (TFTs) is largely controlled by the density of states (DoS) near the conduction band mobility edge. Here, the full subgap DoS of amorphous InGaZnO (a-IGZO) TFTs,…

We demonstrate the field-effect transistor (FET) operation of molecularly-thin anatase phase produced through solid state transformation from Ti0.87O2 nanosheets. Monolayer Ti0.87O2 nanosheet with a thickness of 0.7 nm is two-dimensional…

Materials Science · Physics 2017-08-31 S. Sekizaki , M. Osada , K. Nagashio

Cryogenic field-effect transistors (FETs) offer great potential for a wide range of applications, the most notable example being classical control electronics for quantum information processors. In the latter context, on-chip FETs with low…

Mesoscale and Nanoscale Physics · Physics 2024-09-19 E. Icking , D. Emmerich , K. Watanabe , T. Taniguchi , B. Beschoten , M. C. Lemme , J. Knoch , C. Stampfer

The sub-gap density of states of amorphous indium gallium zinc oxide ($a$-IGZO) is obtained using the ultrabroadband photoconduction (UBPC) response of thin-film transistors (TFTs). Density functional theory simulations classify the origin…

The evolution with carrier concentration of the electrical properties of amorphous indium oxide (InO) thin films has been studied using electronic double layer transistor configurations. Carrier variations of up to 7 X 10^(14) carriers/cm^2…

Superconductivity · Physics 2013-08-14 Yeonbae Lee , Aviad Frydman , Tianran Chen , Brian Skinner , A. M. Goldman

A highly strained BiFeO3 (BFO) thin film is transformed between phases with distinct structures and properties by nanosecond-duration applied electric field pulses. Time-resolved synchrotron x-ray microdiffraction shows that the…

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

The continuous growth of global data traffic over the past three decades, along with advances in disaggregated computing architectures, presents significant challenges for optical transceivers in communication networks and high-performance…

The magnetic domain structure of the multiferroic Bi1-xDyxFeO3 (BDFO) deposited on ZnO at the macroscopic level has been demonstrated in this paper. Magnetic properties are observed by saturated magnetic and ferroelectric hysteresis loops…

Mesoscale and Nanoscale Physics · Physics 2015-03-12 Deepak Bhatia , Himanshu Sharma , Seeraj Nawaj , R. S. Meena , C. V. Tomy , V. R Palkar

The class of transparent conductive oxides includes the material indium tin oxide (ITO) and has become a widely used material of modern every-day life such as in touch screens of smart phones and watches, but also used as an optically…

Among the n-type metal oxide materials used in the planar perovskite solar cells, zinc oxide (ZnO) is a promising candidate to replace titanium dioxide (TiO2) due to its relatively high electron mobility, high transparency, and versatile…

Applied Physics · Physics 2017-08-11 Shang-Hsuan Wu , Ming-Yi Lin , Sheng-Hao Chang , Wei-Chen Tu , Chih-Wei Chu , Yia-Chung Chang

We report a detailed study performed on La2Zr2O7 (LZO) pyrochlore material grown by Metal-Organic Decomposition (MOD) method as buffer layers for YBa2Cu3O7-x (YBCO) coated conductors. High quality epitaxial LZO thin films have been obtained…