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Showing 1 to 12 of 103 entries
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Quantitative Analysis of the Local Phase Transitions Induced by Laser Heating.

ACS nano

Ievlev AV, Susner MA, McGuire MA, Maksymovych P, Kalinin SV.
PMID: 26536387
ACS Nano. 2015 Dec 22;9(12):12442-50. doi: 10.1021/acsnano.5b05818. Epub 2015 Nov 09.

Functional imaging enabled by scanning probe microscopy (SPM) allows investigations of nanoscale material properties under a wide range of external conditions, including temperature. However, a number of shortcomings preclude the use of the most common material heating techniques, thereby...

Effect of certolizumab pegol over 96 weeks of treatment on inflammation of the spine and sacroiliac joints, as measured by MRI, and the association between clinical and MRI outcomes in patients with axial spondyloarthritis.

RMD open

Braun J, Baraliakos X, Hermann KG, Landewé R, Machado PM, Maksymowych WP, Davies O, Hoepken B, Nurminen T, Stach C, van der Heijde D.
PMID: 28848654
RMD Open. 2017 Apr 24;3(1):e000430. doi: 10.1136/rmdopen-2017-000430. eCollection 2017.

OBJECTIVE: To report MRI outcomes and explore the relationship between clinical remission and MRI inflammation in patients with axial spondyloarthritis (axSpA) from the RAPID-axSpA trial, including radiographic (r-)axSpA and non-radiographic (nr-)axSpA.METHODS: RAPID-axSpA (NCT01087762) was double-blind and placebo-controlled to week...

Gold-adatom-mediated bonding in self-assembled short-chain alkanethiolate species on the Au(111) surface.

Physical review letters

Maksymovych P, Sorescu DC, Yates JT.
PMID: 17155271
Phys Rev Lett. 2006 Oct 06;97(14):146103. doi: 10.1103/PhysRevLett.97.146103. Epub 2006 Oct 06.

Microscopic evidence for Au-adatom-induced self-assembly of alkanethiolate species on the Au(111) surface is presented. Based on STM measurements and density-functional theory calculations, a new model for the low-coverage self-assembled monolayer of alkanethiolate on the Au(111) surface is developed, which...

Phyllotaxis in xanthium shoots altered by gibberellic Acid.

Science (New York, N.Y.)

Maksymowych R, Erickson RO.
PMID: 17787086
Science. 1977 Jun 10;196(4295):1201-3. doi: 10.1126/science.196.4295.1201.

Gibberellic acid treatment of vegetative Xanthium shoots induced a change in phyllotaxis and almost doubled the rate of leaf production. Phyllotaxis in control plants displayed a 2,3 contact parastichy pattern; that of the treated plants could be approximated with...

Nonlocal dissociative chemistry of adsorbed molecules induced by localized electron injection into metal surfaces.

Physical review letters

Maksymovych P, Dougherty DB, Zhu XY, Yates JT.
PMID: 17678164
Phys Rev Lett. 2007 Jul 06;99(1):016101. doi: 10.1103/PhysRevLett.99.016101. Epub 2007 Jul 03.

We present a novel approach to surface chemistry studies using scanning tunneling microscopy (STM), where dissociation of molecules adsorbed on metal surfaces is induced nonlocally in a 10-100 nm radius around the STM tip by hot electrons that originate...

Scaling and disorder analysis of local I-V curves from ferroelectric thin films of lead zirconate titanate.

Nanotechnology

Maksymovych P, Pan M, Yu P, Ramesh R, Baddorf AP, Kalinin SV.
PMID: 21572199
Nanotechnology. 2011 Jun 24;22(25):254031. doi: 10.1088/0957-4484/22/25/254031. Epub 2011 May 16.

Differential analysis of current-voltage characteristics, obtained on the surface of epitaxial films of ferroelectric lead zirconate titanate (Pb(Zr(0.2)Ti(0.8))O(3)) using scanning probe microscopy, was combined with spatially resolved mapping of variations in local conductance to differentiate between candidate mechanisms of...

Nanoscale Electrochemical Phenomena of Polarization Switching in Ferroelectrics.

ACS applied materials & interfaces

Ievlev AV, Brown CC, Agar JC, Velarde GA, Martin LW, Belianinov A, Maksymovych P, Kalinin SV, Ovchinnikova OS.
PMID: 30360120
ACS Appl Mater Interfaces. 2018 Nov 07;10(44):38217-38222. doi: 10.1021/acsami.8b13034. Epub 2018 Oct 25.

Polarization switching is a fundamental feature of ferroelectric materials, enabling a plethora of applications and captivating the attention of the scientific community for over half a century. Many previous studies considered ferroelectric switching as a purely physical process, whereas...

Room-Temperature Activation of InGaZnO Thin-Film Transistors via He.

ACS applied materials & interfaces

Stanford MG, Noh JH, Mahady K, Ievlev AV, Maksymovych P, Ovchinnikova OS, Rack PD.
PMID: 28933531
ACS Appl Mater Interfaces. 2017 Oct 11;9(40):35125-35132. doi: 10.1021/acsami.7b10449. Epub 2017 Sep 28.

Amorphous indium gallium zinc oxide (a-IGZO) is a transparent semiconductor which has demonstrated excellent electrical performance as thin-film transistors (TFTs). However, a high-temperature activation process is generally required which is incompatible for next-generation flexible electronic applications. In this work,...

Room-Temperature Electrocaloric Effect in Layered Ferroelectric CuInP.

ACS nano

Si M, Saha AK, Liao PY, Gao S, Neumayer SM, Jian J, Qin J, Balke Wisinger N, Wang H, Maksymovych P, Wu W, Gupta SK, Ye PD.
PMID: 31374166
ACS Nano. 2019 Aug 27;13(8):8760-8765. doi: 10.1021/acsnano.9b01491. Epub 2019 Aug 06.

A material with reversible temperature change capability under an external electric field, known as the electrocaloric effect (ECE), has long been considered as a promising solid-state cooling solution. However, electrocaloric (EC) performance of EC materials generally is not sufficiently...

Probing static discharge of polymer surfaces with nanoscale resolution.

Nanotechnology

Borodinov N, Ievlev AV, Carrillo JM, Collins L, Calamari A, Mamak M, Mulcahy PJ, Sumpter BG, Ovchinnikova O, Maksymovych P.
PMID: 30524042
Nanotechnology. 2018 Nov 01; doi: 10.1088/1361-6528/aaed54. Epub 2018 Nov 01.

Triboelectric charging strongly affects the operation cycle and handling of materials and can be used to harvest mechanical energy through triboelectric nanogenerator set-up. Despite ubiquity of triboelectric effects, a lot of mechanisms surrounding the relevant phenomena remain to be...

Lowering of Tc in Van Der Waals Layered Materials Under In-Plane Strain.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

Neumayer SM, Susner MA, McGuire MA, Pantelides ST, Kalnaus S, Maksymovych P, Balke N.
PMID: 32746203
IEEE Trans Ultrason Ferroelectr Freq Control. 2021 Feb;68(2):253-258. doi: 10.1109/TUFFC.2020.3007290. Epub 2021 Jan 26.

The dependence of electromechanical behavior on strain in ferroelectric materials can be leveraged as parameter to tune ferroelectric properties such as the Curie temperature. For van der Waals materials, a unique opportunity arises because of wrinkling, bubbling, and Moiré...

Transduction of large optomechanical amplitudes with racetrack-loaded Mach-Zehnder interferometers.

Optics express

Westwood-Bachman JN, Maksymowych MP, Van V, Hiebert WK.
PMID: 32752455
Opt Express. 2020 Jul 20;28(15):21835-21844. doi: 10.1364/OE.396971.

Chip-integrated photonic devices have stimulated development in areas ranging from telecommunications to optomechanics. Racetrack resonators have gained popularity for optomechanical transduction due to their high sensitivity and cavity finesse. However, they lack sufficient dynamic range to read out large...

Showing 1 to 12 of 103 entries