Advanced Search
Display options
Filter resources
Text Availability
Article type
Publication date
Species
Language
Sex
Age
Showing 1 to 12 of 48 entries
Sorted by: Best Match Show Resources per page
Interfacial control of oxygen vacancy doping and electrical conduction in thin film oxide heterostructures.

Nature communications

Veal BW, Kim SK, Zapol P, Iddir H, Baldo PM, Eastman JA.
PMID: 27283250
Nat Commun. 2016 Jun 10;7:11892. doi: 10.1038/ncomms11892.

Oxygen vacancies in proximity to surfaces and heterointerfaces in oxide thin film heterostructures have major effects on properties, resulting, for example, in emergent conduction behaviour, large changes in metal-insulator transition temperatures or enhanced catalytic activity. Here we report the...

An atomistic mechanism study of GaN step-flow growth in vicinal m-plane orientations.

Physical chemistry chemical physics : PCCP

Liu Z, Wang RZ, Zapol P.
PMID: 27731436
Phys Chem Chem Phys. 2016 Oct 26;18(42):29239-29248. doi: 10.1039/c6cp04479d.

Elucidation of homoepitaxial growth mechanisms on vicinal non-polar surfaces of GaN is highly important for gaining an understanding of and control thin film surface morphology and properties. Using first-principles calculations, we study the step-flow growth in m-plane GaN based...

[Study of manual dexterity].

L'annee psychologique

CAPOL M, WALTHER L.
PMID: 13125277
Annee Psychol. 1953;53(1):35-58.

No abstract available.

Charge distribution and stability of charged carbon nanotubes.

Physical review letters

Keblinski P, Nayak SK, Zapol P, Ajayan PM.
PMID: 12484896
Phys Rev Lett. 2002 Dec 16;89(25):255503. doi: 10.1103/PhysRevLett.89.255503. Epub 2002 Dec 02.

Density-functional calculations of charge distribution on negatively and positively charged nanotubes result in charge density profiles characterized by a significant increase of charge density at the tube ends. These results are in quantitative agreement with classical electrostatic analysis, which...

A Phase II Study to Evaluate the Safety and Efficacy of Prasinezumab in Early Parkinson's Disease (PASADENA): Rationale, Design, and Baseline Data.

Frontiers in neurology

Pagano G, Boess FG, Taylor KI, Ricci B, Mollenhauer B, Poewe W, Boulay A, Anzures-Cabrera J, Vogt A, Marchesi M, Post A, Nikolcheva T, Kinney GG, Zago WM, Ness DK, Svoboda H, Britschgi M, Ostrowitzki S, Simuni T, Marek K, Koller M, Sevigny J, Doody R, Fontoura P, Umbricht D, Bonni A.
PMID: 34659081
Front Neurol. 2021 Oct 01;12:705407. doi: 10.3389/fneur.2021.705407. eCollection 2021.

No abstract available.

In situ microbeam surface X-ray scattering reveals alternating step kinetics during crystal growth.

Nature communications

Ju G, Xu D, Thompson C, Highland MJ, Eastman JA, Walkosz W, Zapol P, Stephenson GB.
PMID: 33741925
Nat Commun. 2021 Mar 19;12(1):1721. doi: 10.1038/s41467-021-21927-5.

The stacking sequence of hexagonal close-packed and related crystals typically results in steps on vicinal {0001} surfaces that have alternating A and B structures with different growth kinetics. However, because it is difficult to experimentally identify which step has...

Matrix Gla Protein Levels Are Associated With Arterial Stiffness and Incident Heart Failure With Preserved Ejection Fraction.

Arteriosclerosis, thrombosis, and vascular biology

Malhotra R, Nicholson CJ, Wang D, Bhambhani V, Paniagua S, Slocum C, Sigurslid HH, Lino Cardenas CL, Li R, Boerboom SL, Chen YC, Hwang SJ, Yao C, Ichinose F, Bloch DB, Lindsay ME, Lewis GD, Aragam JR, Hoffmann U, Mitchell GF, Hamburg NM, Vasan RS, Benjamin EJ, Larson MG, Zapol WM, Cheng S, Roh JD, O'Donnell CJ, Nguyen C, Levy D, Ho JE.
PMID: 34809448
Arterioscler Thromb Vasc Biol. 2021 Nov 23;ATVBAHA121316664. doi: 10.1161/ATVBAHA.121.316664. Epub 2021 Nov 23.

OBJECTIVE: Arterial stiffness is a risk factor for cardiovascular disease, including heart failure with preserved ejection fraction. MGP (matrix Gla protein) is implicated in vascular calcification in animal models, and circulating levels of the uncarboxylated, inactive form of MGP...

SIESTA-SIPs: Massively parallel spectrum-slicing eigensolver for an ab initio molecular dynamics package.

Journal of computational chemistry

Keçeli M, Corsetti F, Campos C, Roman JE, Zhang H, Vázquez-Mayagoitia Á, Zapol P, Wagner AF.
PMID: 30141534
J Comput Chem. 2018 Aug 15;39(22):1806-1814. doi: 10.1002/jcc.25350.

Integration of Shift-and-Invert Parallel Spectral Transformation (SIPs) eigensolver (as implemented in the SLEPc library) into an ab initio molecular dynamics package, SIESTA, is described. The effectiveness of the code is demonstrated on applications to polyethylene chains, boron nitride sheets,...

Anomalous Kondo resonance mediated by semiconducting graphene nanoribbons in a molecular heterostructure.

Nature communications

Li Y, Ngo AT, DiLullo A, Latt KZ, Kersell H, Fisher B, Zapol P, Ulloa SE, Hla SW.
PMID: 29038513
Nat Commun. 2017 Oct 16;8(1):946. doi: 10.1038/s41467-017-00881-1.

Kondo resonances in heterostructures formed by magnetic molecules on a metal require free host electrons to interact with the molecular spin and create delicate many-body states. Unlike graphene, semiconducting graphene nanoribbons do not have free electrons due to their...

Computational studies of electrochemical CO2 reduction on subnanometer transition metal clusters.

Physical chemistry chemical physics : PCCP

Liu C, He H, Zapol P, Curtiss LA.
PMID: 25158148
Phys Chem Chem Phys. 2014 Dec 28;16(48):26584-99. doi: 10.1039/c4cp02690j.

Computational studies of electrochemical reduction of CO2 to CO, HCOOH and CH4 were carried out using tetra-atomic transition metal clusters (Fe4, Co4, Ni4, Cu4 and Pt4) at the B3LYP level of theory. Novel catalytic properties were discovered for these...

Epitaxial oxide bilayer on Pt (001) nanofacets.

The Journal of chemical physics

Hennessy D, Komanicky V, Iddir H, Pierce MS, Menzel A, Chang KC, Barbour A, Zapol P, You H.
PMID: 22299911
J Chem Phys. 2012 Jan 28;136(4):044704. doi: 10.1063/1.3678858.

We observed an epitaxial, air-stable, partially registered (2 × 1) oxide bilayer on Pt (001) nanofacets [V. Komanicky, A. Menzel, K.-C. Chang, and H. You, J. Phys. Chem. 109, 23543 (2005)]. The bilayer is made of two half Pt...

The effect of a Ta oxygen scavenger layer on HfO2-based resistive switching behavior: thermodynamic stability, electronic structure, and low-bias transport.

Physical chemistry chemical physics : PCCP

Zhong X, Rungger I, Zapol P, Nakamura H, Asai Y, Heinonen O.
PMID: 26902598
Phys Chem Chem Phys. 2016 Mar 14;18(10):7502-10. doi: 10.1039/c6cp00450d. Epub 2016 Feb 23.

Reversible resistive switching between high-resistance and low-resistance states in metal-oxide-metal heterostructures makes them very interesting for applications in random access memories. While recent experimental work has shown that inserting a metallic "oxygen scavenger layer" between the positive electrode and...

Showing 1 to 12 of 48 entries