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X-WR-CALNAME:Physics & Astronomy
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X-WR-CALDESC:Events for Physics & Astronomy
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DTSTART;TZID=America/Chicago:20191004T153000
DTEND;TZID=America/Chicago:20191004T163000
DTSTAMP:20190923T180537Z
CREATED:20190827T143041Z
LAST-MODIFIED:20190923T180537Z
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SUMMARY:Physics Colloquium - Dr. Narae Kang
DESCRIPTION:Dr. Narae Kang\, Intel Corp. \nDesign\, Fabrication\, and Characterization of Nanoelectronic Devices: From Carbon Nanotubes to Graphene\, and Beyond \nFabrication of high-performance electronic devices using novel semiconductors is essential for developing future electronics applications such as large-area\, flexible and transparent displays\, sensors and solar cells. In the first part of my talk\, I will discuss the fabrication of nanoelectronic devices and investigation of their transport properties using carbon nanotubes (CNTs) and graphene as electrode materials. I investigated two types of devices using (i) semiconducting CNTs\, and (ii) organic semiconductors. The study suggests that\, in addition to strong π- π interaction at graphene/pentacene interface\, the tunable electronic properties of graphene as electrode have a significant role in the device performance. For a fundamental understanding of the interface\, short-channel OFETs with sub-100nm channel length were fabricated using graphene electrode. From the low temperature electronic transport measurements\, a lower charge injection barrier was found from the devices with graphene electrode. This investigation suggested that the use of carbon-based materials as electrodes can enhance the performance of future nanoelectronic devices. In the second part of my talk\, I will discuss the recent interesting findings from the research in tailoring the properties of layered two-dimensional transition metal dichalcogenides (TMDC) via controlled defect engineering. Due to the large intrinsic bandgap\, TMDC materials have emerged as promising candidates for the 2D device engineering. \nEvent flyer download here
URL:https://uwm.edu/physics/event/physics-colloquium-to-be-announced-2019-09-13-2019-09-27/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
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X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191011T153000
DTEND;TZID=America/Chicago:20191011T163000
DTSTAMP:20191008T141202Z
CREATED:20190827T143041Z
LAST-MODIFIED:20191008T141202Z
UID:10382471-1570807800-1570811400@uwm.edu
SUMMARY:Physics Colloquium - Dan Milisavljevic
DESCRIPTION:Dan Milisavljevic\, Purdue University \nMulti-messenger Autopsies of Stellar Death \nThe expanding zoo of astronomical transients has become one of the most important driving forces of scientific discovery in extreme astrophysics. Increasingly sophisticated all-sky surveys are uncovering unexpected phenomena that are forcing radical revisions to long accepted models of massive star evolution and their compact remnant objects. These discoveries\, which will increase by orders of magnitude in the upcoming decade\, are shaping the priorities of the next generation of science facilities such as the Large Synoptic Survey Telescope and Extremely Large Telescopes. \nI will review how radio-through-X-ray investigations of transients are revolutionizing our understanding of stellar death and its myriad impacts. This includes the terminal and often dramatic evolutionary phases massive stars pass though when approaching core collapse; the physical mechanisms behind the subsequent supernova explosion; and the formation of powerful compact objects that can participate in the explosion dynamics. I will also discuss how the new synergy between electromagnetic\, neutrino\, and gravitational wave facilities can enable transformative progress towards finally solving the enigma of core collapse by accurately interpreting the multi-messenger signals from the next Galactic supernova. \nEvent flyer available here
URL:https://uwm.edu/physics/event/physics-colloquium-to-be-announced-2019-10-11/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191018T153000
DTEND;TZID=America/Chicago:20191018T163000
DTSTAMP:20191016T124947Z
CREATED:20190827T143041Z
LAST-MODIFIED:20191016T124947Z
UID:10383473-1571412600-1571416200@uwm.edu
SUMMARY:No Physics Colloquium This Week
DESCRIPTION:There is no scheduled Physics Colloquium for Friday\, October 18 2019.
URL:https://uwm.edu/physics/event/physics-colloquium-to-be-announced-2019-09-13-2019-10-18/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191024T143000
DTEND;TZID=America/Chicago:20191024T153000
DTSTAMP:20191016T171808Z
CREATED:20190827T143820Z
LAST-MODIFIED:20191016T171808Z
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SUMMARY:IEEE/Physics Colloquium - Professor Hari Srikanth
DESCRIPTION:Professor Hari Srikanth\, Dept. of Physics – Univ. of South Florida & 2019 IEEE Magnetic Society Distinguished Lecturer \nTuning Magnetic Anisotropy in Nanostructures for Biomedical Applications \nMagnetic nanoparticles have been building blocks in applications ranging from high density recording to spintronics and nanomedicine.  Magnetic anisotropies in nanoparticles arising from surfaces\, shapes and interfaces in hybrid structures are important in determining the functional response in various applications.  In this talk\, I will first introduce the basic aspects of anisotropy\, how to tune it in nanostructures and ways to measure it.  I will discuss resonant RF transverse susceptibility\, that we have used extensively\, as a powerful method to probe the effective anisotropy in magnetic materials. Tuning anisotropy has a direct impact on the performance of functional magnetic nanoparticles in biomedical applications such as contrast enhancement in MRI and magnetic hyperthermia cancer therapy. There is a need to improve the specific absorption rate (SAR) or heating efficiency of nanoparticles for hyperthermia and I will focus on the role of tuning surface and interfacial anisotropy with a goal to enhance SAR. Strategies going beyond simple spherical structures such as exchange coupled core-shell nanoparticles\, nanowire\, nanotube geometries can be exploited to increase saturation magnetization\, effective anisotropy and heating efficiency in magnetic hyperthermia. This lecture will combine insights into fundamental physics of magnetic nanostructures along with recent research advances in their application in nanomedicine. \nEvent flyer available here
URL:https://uwm.edu/physics/event/physics-colloquium-hari-srikanth/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191025T153000
DTEND;TZID=America/Chicago:20191025T163000
DTSTAMP:20191017T163934Z
CREATED:20190827T143041Z
LAST-MODIFIED:20191017T163934Z
UID:10384490-1572017400-1572021000@uwm.edu
SUMMARY:Physics Colloquium - Dr. Neil Turok
DESCRIPTION:Dr. Neil Turok\, Director Emeritus; Perimeter Institute \nQuantum Universe \nObservations show the cosmos to be astonishingly simple\, and yet deeply puzzling\, on the largest accessible scales.  How did everything we see emerge from a singular “point” in the past?   Why is there a cosmological constant (or dark energy) and what fixes its value?  What caused the density variations  which seeded the formation of galaxies?  All these questions involve the interplay between quantum mechanics and spacetime. New ideas and mathematical techniques for studying quantum dynamics are allowing us to identify problems with existing cosmological models and to explore new explanations. The CPT symmetric universe\, in particular\, offers a surprisingly simple explanation for the cosmological dark matter. The same calculational techniques have wide application in various fields\, including radioastronomy\, where there are prospects of using the whole universe as a fundamental physics laboratory of unequalled range and precision.  \nEvent flyer available here
URL:https://uwm.edu/physics/event/physics-colloquium-to-be-announced-2019-10-25/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
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