Results 71 to 80 of about 12,666 (244)

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Separation of hafnium from zirconium by anion exchange

, 1961
The results of a systematic survey of the elution of hafnium and zirconium in diluted sulfuric acid, and in solutions of hydrochloric and sulfuric acids in water, are presented.
Hague, John L.; Machlan, Lawrence A.
core   +1 more source

Experimental determination of the hafnium L-subshell fundamental parameters using the holistic approach

New Journal of Physics
By employing the recently demonstrated new holistic approach, the atomic fundamental parameters (FPs) of the three Hf-L subshells were experimentally determined using the radiometrically calibrated instrumentation of the Physikalisch-Technische ...
Nils Wauschkuhn, Heiko Gundlach, Philipp Hönicke   +2 more
doaj   +1 more source

Ternary molybdate K5Cu0.5Hf1.5(MoO4)6: synthesis, structure, thermal expansion and ionic conductivity

Конденсированные среды и межфазные границы
Objective: A novel ternary molybdate, K5Cu0.5Hf1.5(MoO4)6, was synthesized using solid-state ceramic method. The sequence of chemical transformations involved in its formation was determined, revealing that the compound undergoes incongruent melting at ...
Evgeniy V. Kovtunets, Tatiyana S. Spiridonova, Yunna L. Tushinova, Tsyrendyzhit T. Bazarova, Alexandra V. Logvinova, Bair G. Bazarov   +5 more
doaj   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Tissue response to hafnium

Journal of Materials Science: Materials in Medicine, 2001
The aim of the present experimental study was to evaluate the tissue response to hafnium (Hf) a reactive metal closely related to titanium (Ti) and zirconium (Zr). Hf has not been previously evaluated as implant material in a biologic environment. In a first experiment, 21 machined Hf non-threaded implants (test) and 21 similar Ti implants (control ...
S, Mohammadi, M, Esposito, M, Cucu, L E, Ericson, P, Thomsen   +4 more
openaire   +2 more sources

Bridging Polymer Brushes and Coatings Through Ultra‐Thick Growth by Surface‐Initiated Photoiniferter Polymerization

Advanced Functional Materials, EarlyView.
Surface‐initiated photoiniferter‐mediated polymerization (SI‐PIMP) enables the controlled growth of UHMW polymer brushes with multi‐micrometer thicknesses, bridging conventional brushes and bulk‐like coatings. UHMW brushes are synthesized through a controlled/living process; they provide low friction and enhanced wear resistance under aqueous ...
Elena Avanzini, Emanuele Grigolon, Lily E. Diodati, Matteo Savio, Megan E. Lott, Kaden C. Stevens, Francesca Lorandi, Brent S. Sumerlin, Edmondo M. Benetti   +8 more
wiley   +1 more source

Hafnium oxide thin films: Effect of growth parameters on oxygen and hafnium vacancies

, 2009
Thin films of hafnium oxide were grown by reactive molecular beam epitaxy. The growth parameters, substrate temperature, and oxidation conditions were varied in a wide range in order to investigate their influence on the thin film characteristics.
H. von Seggern, Kurian, J., Seggern, H. von, Hildebrandt, E., E. Hildebrandt, J. Zimmermann, L. Alff, Fleissner, A., Zimmermann, J., Alff, L., J. Kurian, A. Fleissner   +11 more
core   +1 more source

Ferroelectric Polarization Enabled Threshold Voltage Modulation in High Electron Mobility Transistor

Advanced Functional Materials, EarlyView.
A comprehensive model is developed to capture the coupled electrostatics of a ferroelectric capacitor and a metal‐insulator‐semiconductor high electron mobility transistor (MISHEMT) connected in ferroelectric‐metal high electron mobility transistor (FeMHEMT) configuration.
Wentian Gao, Andre Wachowiak, Thomas Mikolajick, Uwe Schroeder, Roberto Guido   +4 more
wiley   +1 more source