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Organisms in nature can alter the short-range order of an amorphous precursor phase, thereby controlling the resulting crystalline structure. This phenomenon inspired an investigation of the effect of modifying the short-range order within…

Materials Science · Physics 2020-01-13 Yael Etinger-Geller , Alex Katsman , Boaz Pokroy

A significant anisotropy of the magnetic-field driven superconductor-insulator transition is observed in thin films of amorphous indium-oxide. The anisotropy is largest for more disordered films which have a lower transition field. At…

Superconductivity · Physics 2015-07-22 A. Johansson , N. Stander , E. Peled , G. Sambandamurthy , D. Shahar

Further development of nuclear power plant technology relies heavily on materials durability under operating conditions. Estimating the materials performance in the operando tests is crucial. In this paper, the mechanical behavior of thin…

Recently it has been discovered that lanthanum, yttrium, and other metal hydride films show dramatic changes in the optical properties at the metal-insulator transition. Such changes on a high energy scale suggest the electronic structure…

Strongly Correlated Electrons · Physics 2009-10-31 K. K. Ng , F. C. Zhang , V. I. Anisimov , T. M. Rice

Methane (CH_4) gas sensing properties of novel vanadium dioxide (VO_2) nanostructured films is reported for the first time. The single phase nanostructures are synthesized by pulsed dc-magnetron sputtering of V target followed by oxidation…

Materials Science · Physics 2015-09-02 A. K. Prasad , S. Amirthapandian , S. Dhara , S. Dash , N. Murali , A. K. Tyagi

Thermochromic vanadium dioxide thin films have attracted much attention recently for constructing variable-emittance coatings upon its insulator-metal phase transition for dynamic thermal control. However, fabrication of high-quality…

Materials Science · Physics 2025-05-20 Vishwa Krishna Rajan , Jeremy Chao , Sydney Taylor , Liping Wang

In the present work, HfO2 thin film (100nm) has been deposited by sputtering technique and annealed at various temperatures ranging from 400 to 1000\degree (in step of 200 \degree) in O2 ambient for 10 min. The samples have been…

Materials Science · Physics 2016-05-05 Shilpi Pandey , Prateek Kothari , Sunil Kumar Sharma , Seema Verma , K. J. Rangra

The reversible semiconductor-to-metal transition of vanadium dioxide (VO2) makes VO2-based coatings a promising candidate for thermochromic smart windows, reducing the energy consumption of buildings. We report low-temperature (320 degC)…

We report on local probe measurements of current-voltage and electrostatic force-voltage characteristics of electric-field-induced insulator to metal transition in VO2 thin film. In conducting AFM mode, switching from the insulating to…

Strongly Correlated Electrons · Physics 2012-01-09 B. Wu , A. Zimmers , H. Aubin , R. Ghosh , Y. Liu , R. Lopez

The observed correlation of oxygen vacancies and room temperature ferromagnetic ordering in Co doped ZnO1-o nanoparticles reported earlier (Naeem et al Nanotechnology 17, 2675-2680) has been further explored by transport and optical…

Materials Science · Physics 2007-12-10 M. Naeem , S. K. Hasanain , A. Mumtaz

We report the epitaxial growth and the electrical properties, especially the metal-to-insulator transition (MIT), of vanadium dioxide (VO2) thin films synthesized on LSAT (111) ([LaAlO3]0.3[Sr2AlTaO6]0.7) substrates by pulsed laser…

Materials Science · Physics 2019-06-11 Yang Liu , Shanyuan Niu , Thomas Orvis , Haimang Zhang , Han Wang , Jayakanth Ravichandran

We present a novel method enabling precise post-fabrication modulation of the electrical resistance in micrometer-scale regions of amorphous indium oxide (a-InO$_x$) films. By subjecting initially insulating films to an electron beam at…

Superconductivity · Physics 2025-11-10 Iago F. Llovo , Julien Delahaye

Vanadium dioxide (VO$_2$) has received significant interest in the context of nanophotonic metamaterials and memories owing to its reversible insulator-metal transition associated with significant changes in its optical and electronic…

Mesoscale and Nanoscale Physics · Physics 2025-02-25 Peter Kepič , Michal Horák , Jiří Kabát , Vlastimil Křápek , Andrea Konečná , Tomáš Šikola , Filip Ligmajer

Vanadium dioxide is a correlated electron system that features a metal-insulator phase transition (MIT) above room temperature and is of interest in high speed switching devices. Here, we integrate VO2 into two-terminal coplanar waveguides…

Materials Science · Physics 2013-06-04 Sieu D. Ha , You Zhou , Christopher J. Fisher , Shriram Ramanathan , Jacob P. Treadway

Vanadium dioxide, a well-known Mott insulator, is a highly studied electronic material with promising applications in information processing and storage. While fully crystalline layers exhibit exceptional properties, such as a sharp and…

We study terahertz transmission through nano-patterned vanadium dioxide thin film. It is found that the patterning allows the lowering of the apparent transition temperature. For the case of the smallest width nano antennas, the transition…

Hafnium dioxide, also known as hafnia, is an extremely sought-after material in opto- and nanoelectronics for creating optical coatings and various functional media to have stable performance characteristics under varying thermal operating…

Materials Science · Physics 2025-09-10 A. O. Shilov , S. S. Savchenko , A. S. Vokhmintsev , V. A. Gritsenko , I. A. Weinstein

We have studied the effects of oxygen on hydrogenated amorphous/crystalline silicon films in terms of their structural and optical properties. Different hydrogenated silicon oxide (SiO:H) and silicon (Si:H) films are fabricated between…

Materials Science · Physics 2021-03-17 Meenakshi Rana , Chandan Banerjee , Papia Chowdhury

We explore the electronic and magnetic properties of NH$_4^+$-intercalated vanadium pentoxide (NH$_4^+$-V$_2$O$_5$), a material that has been identified as a promising cathode for aqueous zinc-ion batteries. Density Functional Theory (DFT)…

Strongly Correlated Electrons · Physics 2025-01-10 Anna A. Anisimova , Yaroslav M. Plotnikov , Dmitry M. Korotin

This study reports on the optical, structural, and dielectric properties of aluminum tantalum oxide (Al$_x$Ta$_y$O$_z$) thin films deposited at low temperature on silicon and steel substrates by pulsed direct current reactive magnetron…

Materials Science · Physics 2026-02-20 Pavel Ondračka , Richard Drevet , Daniel Franta , Jan Dvořák , Ivan Ohlídal , Petr Vašina