Results 121 to 130 of about 11,906 (259)

Non-universal current flow near the metal-insulator transition in an oxide interface. [PDF]

Nat Commun, 2021
Persky E, Vardi N, Monteiro AMRVL, van Thiel TC, Yoon H, Xie Y, Fauqué B, Caviglia AD, Hwang HY, Behnia K, Ruhman J, Kalisky B.   +11 more
europepmc   +1 more source

Strain-free thin film growth of vanadium dioxide deposited on 2D atomic layered material of hexagonal boron nitride investigated by their thickness dependence of insulator–metal transition behavior

Applied Physics Express
We report on the preparation of vanadium dioxide (VO _2 ) ultrathin films on hexagonal boron nitride (hBN), which is a typical two-dimensional material, to show clear metal–insulator transition owing to weak van der Waals interaction at their surface. It
Boyuan Yu, Shingo Genchi, Kenji Watanabe, Takashi Taniguchi, Hidekazu Tanaka   +4 more
doaj   +1 more source

Direct Channel Implantation of B and BF2 Ions for Functional Control of Oxygen Vacancies in Oxide Semiconductor Thin Film Transistors

Advanced Functional Materials, EarlyView.
Direct channel implantation of B and BF2 ions was employed to fabricate amorphous IGZO TFTs with improved electrical and stability properties. B and BF2 implantation modulate oxygen vacancies within the IGZO channel. The field‐effect mobility of ion‐implanted IGZO TFTs was enhanced as compared to pristine IGZO TFTs.
Beom Soo Kim, Jong Bin An, Seok Gyu Hong, Moon Ho Lee, Ju Hyun Lee, Ji Yeong Park, Hwa Seon Kim, I. Sak Lee, Kyungmoon Kwak, Hyun Jae Kim   +9 more
wiley   +1 more source

Resonant tunneling driven metal-insulator transition in double quantum-well structures of strongly correlated oxide. [PDF]

Nat Commun, 2021
Yukawa R, Kobayashi M, Kanda T, Shiga D, Yoshimatsu K, Ishibashi S, Minohara M, Kitamura M, Horiba K, Santander-Syro AF, Kumigashira H.   +10 more
europepmc   +1 more source

Giant Electrostriction in Halide Perovskites Revisited With Double‐Modulation Interferometry

Advanced Functional Materials, EarlyView.
A giant electrostrictive effect in lead halide perovskites had been reported previously. This work uses sensitive interferometry to measure the electromechanical response of various halide perovskite samples. The results reveal no intrinsic electrostrictive compression. Instead, the materials expand primarily under an applied electric field as a result
Philipp Ramming, Markus Griesbach, Ralf Moos, Lothar Kador, Anna Köhler   +4 more
wiley   +1 more source

Tuning the Metal-Insulator Transition Properties of VO₂ Thin Films with the Synergetic Combination of Oxygen Vacancies, Strain Engineering, and Tungsten Doping. [PDF]

Nanomaterials (Basel), 2022
Basyooni MA, Al-Dossari M, Zaki SE, Eker YR, Yilmaz M, Shaban M.   +5 more
europepmc   +1 more source

Polarization‐Dependent Synaptic‐Like Electro‐Optical Response in Ferroelectric Nematic Liquid Crystals

Advanced Functional Materials, EarlyView.
Ferroelectric nematic liquid crystals (FNLCs) offer fast, tunable polarization and low‐voltage operation but suffer from poor polarization retention at zero field. Semiconductor‐modified FNLCs enhance polarization retention and exhibit short‐ and long‐term electro‐optical responses, while also supporting spike‐type signal integrations.
Kutay Sagdic, Weiming Yao, Danqing Liu
wiley   +1 more source

Tunable magnons of an antiferromagnetic Mott insulator via interfacial metal-insulator transitions

Nature Communications
Antiferromagnetic insulators present a promising alternative to ferromagnets due to their ultrafast spin dynamics essential for low-energy terahertz spintronic device applications.
Sujan Shrestha, Maryam Souri, Christopher J. Dietl, Ekaterina M. Pärschke, Maximilian Krautloher, Gabriel A. Calderon Ortiz, Matteo Minola, Xiatong Shi, Alexander V. Boris, Jinwoo Hwang, Giniyat Khaliullin, Gang Cao, Bernhard Keimer, Jong-Woo Kim, Jungho Kim, Ambrose Seo   +15 more
doaj   +1 more source

Nanoscale Spatial Tuning of Superconductivity in Cuprate Thin Films via Direct Laser Writing

Advanced Functional Materials, EarlyView.
Maskless direct laser writing enables local control of oxygen stoichiometry in epitaxial YBCO thin films under ambient conditions. Sub‐micrometer grayscale patterns with tunable optical response and superconducting transport properties are achieved.
Irene Biancardi, Valerio Levati, Jordi Alcalà, Thomas Günkel, Nicolas Lejeune, Riccardo Girelli, Alejandro V. Silhanek, Valeria Russo, Narcís Mestres, Daniela Petti, Anna Palau, Edoardo Albisetti   +11 more
wiley   +1 more source

Biomimetic Microfractals Based Flexible Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
A leaf‐skeleton‐based microfractal architecture is integrated with guided CuNW networks and biomimetic triboelectric polymer layers, enabling breathable, flexible, and material‐efficient triboelectric nanogenerators. The resulting system combines enhanced charge generation and charge transport, offering potential for next‐generation self‐powered ...
Amit Barua, Mislav Matić, Ana‐Marija Pitner, Rituporn Gogoi, Aman Kumar, Mirko Poljak, Anastasia Koivikko, Vipul Sharma   +7 more
wiley   +1 more source