Search Results - "Mitch Wallis, T."
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Imaging of magnetic excitations in nanostructures with near-field microwave microscopy
Published in Journal of magnetism and magnetic materials (15-03-2022)“…We present images of spin-wave excitations in a patterned yttrium iron garnet (YIG) thin film obtained by use of near-field microwave microscopy, which can…”
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Broadband Electrical Characterization of Multiwalled Carbon Nanotubes and Contacts
Published in Nano letters (01-04-2007)“…The electrical response of an individual multiwalled carbon nanotube (MWNT) and its contacts, welded to a coplanar waveguide (CPW), was measured up to 24 GHz…”
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Magneto-mechanical investigation of spin dynamics in magnetic multilayers
Published in Europhysics letters (01-02-2014)“…The Einstein-de Haas effect is used to study experimentally the interfacial spin transport in a bilayer metallic system. Specifically, mechanical torque on a…”
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Micromachined resonators of high Q-factor based on atomic layer deposited alumina
Published in Sensors and actuators. A. Physical. (24-09-2009)“…In this paper, atomic layer deposited (ALD) alumina (Al 2O 3) has been demonstrated as the structural material for a micro-resonator for the first time. An…”
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Imaging Carrier Inhomogeneities in Ambipolar Tellurene Field Effect Transistors
Published in Nano letters (13-02-2019)“…The development of van der Waals (vdW) homojunction devices requires materials with narrow bandgaps and simultaneously high hole and electron mobilities for…”
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Asymmetric Dielectric Trilayer Cantilever Probe for Calorimetric High-Frequency Field Imaging
Published in Journal of microelectromechanical systems (01-02-2007)“…Multimaterial, microelectromechanical systems-based cantilever probes were developed for high-frequency magnetic field imaging. The basic configuration of the…”
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Influence of Periodic Patterning on the Magnetization Response of Micromagnetic Structures
Published in IEEE magnetics letters (2011)“…The magnetization response of single, patterned, thin-film Permalloy (Ni_80Fe_20, Py) elements embedded in a coplanar waveguide (CPW) is investigated. The…”
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Electrical Characterization of Photoconductive GaN Nanowires from 50 MHz to 33 GHz
Published in IEEE transactions on nanotechnology (01-07-2011)“…The electrical response of two-port photoconductive GaN nanowire devices was measured from 50 MHz to 33 GHz. The admittance of the nanowire devices showed an…”
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Modeling and metrology of metallic nanowires with application to microwave interconnects
Published in 2010 IEEE MTT-S International Microwave Symposium (01-05-2010)“…Broadband characterization of individual metallic nanowires for microwave interconnect applications is discussed. Circuit and method of moments (MoM) modeling…”
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Conference Proceeding -
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An overview of measurement techniques for radio frequency nanotechnology (Invited paper)
Published in 2017 IEEE 18th Wireless and Microwave Technology Conference (WAMICON) (01-04-2017)“…We present an overview of the historical development and current state-of-the-art in measurement techniques for radio frequency (RF) nanotechnology. The field…”
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Conference Proceeding -
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Metrology of microstructured waveguides for spintronic applications
Published in CPEM 2010 (01-06-2010)“…Patterned permalloy films embedded in a coplanar waveguide (CPW) were fabricated, and the magnetization dynamics of such structures were investigated…”
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Conference Proceeding -
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Near-field antenna as a Scanning Microwave Probe for characterization of materials and devices
Published in Proceedings of the Fourth European Conference on Antennas and Propagation (01-04-2010)“…The Scanning Microwave Probe (SMP) is emerging as an important broadband metrology tool for characterizing materials and devices in the micron and sub-micron…”
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Conference Proceeding -
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A Framework for Broadband Characterization of Individual Nanowires
Published in IEEE microwave and wireless components letters (01-03-2010)“…A framework for broadband characterization of individual nanowires (NWs) is discussed in this letter. Specifically, on-wafer multiline thru-reflect-line (TRL)…”
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High-Frequency Characterization of Contact Resistance and Conductivity of Platinum Nanowires
Published in IEEE transactions on microwave theory and techniques (01-10-2011)“…Contact resistance and conductivity of individual platinum (Pt) nanowires (NWs) embedded in coplanar waveguide structures are investigated at high frequencies…”
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Near-field microwave microscopy of one-dimensional nanostructures
Published in 2016 IEEE MTT-S International Microwave Symposium (IMS) (01-05-2016)“…With the ability to measure sample conductivity with nanometer spatial resolution, scanning microwave microscopy (SMM) is a powerful tool to study nanoscale…”
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Conference Proceeding -
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Looking Forward to IMS 2022
Published in IEEE microwave magazine (01-05-2022)Get full text
Magazine Article -
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Looking Forward to IMS2022
Published in IEEE microwave magazine (01-05-2022)“…As guest editor, it's my pleasure to welcome you to this issue of IEEE Microwave Magazine . This issue focuses on the 2022 IEEE Microwave Theory and Techniques…”
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Magazine Article -
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Nanoelectronic Characterization: Using Near-Field Microwave Microscopy for Nanotechnological Research
Published in IEEE microwave magazine (01-10-2020)“…The optical characterization of nanoscale objects is challenging due to the Abbe diffraction limit. This limit constrains the achievable spatial resolution of…”
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Magazine Article -
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Microwaves and Microscopy [From the Guest Editors' Desk]
Published in IEEE microwave magazine (01-10-2020)“…The articles in this special section focus on microwaves and microscopy. As the phrase implies, the topic lies at the intersection of two technical…”
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Magazine Article