BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:US/Eastern BEGIN:DAYLIGHT DTSTART:20190310T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20181104T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20190129T133955Z UID:0414413E-3C3E-4E84-964D-2D1A6A27321D DTSTART;TZID=US/Eastern:20190128T140000 DTEND;TZID=US/Eastern:20190128T150000 DESCRIPTION:Magnetic nanoparticles have been building blocks in application s ranging from high density recording to spintronics and nanomedicine [1]. Magnetic anisotropies in nanoparticles arising from surfaces\, shapes\, a nd interfaces in hybrid structures are important in determining the functi onal response in various applications. In this talk I will first introduce the basic aspects of anisotropy and discuss resonant radio-frequency (RF) transverse susceptibility\, which we have used extensively\, as a powerfu l method to probe the effective anisotropy in magnetic materials. The tuni ng of anisotropy has a direct impact on the performance of functional magn etic nanoparticles in biomedical applications such as contrast enhancement in magnetic resonance imaging and magnetic hyperthermia for cancer therap y. I will focus on the role of tuning surface and interfacial anisotropy w ith a goal to enhance specific absorption rate or heating efficiency. Stra tegies going beyond simple spherical structures to include exchange couple d core-shell nanoparticles\, nanowires\, and nanotubes\, can be exploited to increase heating efficiency in magnetic hyperthermia [2]\, [3]. In addi tion to biomedical applications\, composites of anisotropic nanoparticles dispersed in polymers pave the way to a range of electrically and magnetic ally tunable materials for RF and microwave device applications [4]. This lecture will combine insights into fundamental physics of magnetic nanostr uctures along with recent research advances in their application to nanome dicine and electromagnetic devices.\n\n[1] E. A. Périgo\, G. Hemery\, O. Sandre\, D. Ortega\, E. Garaio\, F. Plazaola\, and F. J. Teran\, “Fundam entals and advances in magnetic hyperthermia\,” Appl. Phys. Rev.\, vol. 2\, 041302\, 2015.\n\n[2] Z. Nemati\, J. Alonso\, H. Khurshid\, M. H. Phan \, and H. Srikanth\, “Core/shell iron/iron oxide nanoparticles: Are they promising for magnetic hyperthermia?” RSC Advances\, vol. 6\, 38697\, 2 016.\n\n[3] H. Khurshid\, M.-H. Phan\, P. Mukherjee\, and H. Srikanth\, “Tuning exchange bias in Fe/-Fe2O3 core-shell nanoparticles: Impacts of interface and surface spins\,” Appl. Phys. Lett.\, vol. 104\, 072407\ , 2014.\n\n[4] K. Stojak\, S. Pal\, H. Srikanth\, C. Morales\, J. Dewdney\ , T. Weller\, and J. Wang\, “Polymer nanocomposites exhibiting magnetica lly tunable microwave properties\,” Nanotechnology\, vol. 22\, 135602\, 2011.\n\nBiography\n\nHari Srikanth is a professor of physics at the Unive rsity of South Florida (USF). He received the Ph.D. in experimental conden sed matter physics from the Indian Institute of Science. After postdoctora l research for several years\, he joined USF in 2000\, where he establishe d the Functional Materials Laboratory. His research spans a wide range of topics including magnetic nanoparticles\, magnetic refrigerant materials\, spin calorics\, and complex oxides. He has published about 250 journal ar ticles and given numerous invited talks.\n\nDr. Srikanth is a Fellow of th e American Physical Society and a Senior Member of IEEE. He is an associat e editor of the Journal of Applied Physics. He has been closely involved w ith the Magnetism and Magnetic Materials and INTERMAG conferences for more than 15 years\, serving as editor\, publications chair\, and as a member of program committees.\n\nContact: Hari Srikanth\, Department of Physics\, University of South Florida\, 4202 E. Fowler Ave.\, Tampa\, FL 33620\, US A\; e-mail: sharihar@usf.edu.\n\nRoom: B1220\, Bldg: SEH\, 800 22nd St NW\ , Washington\, District of Columbia\, United States\, 20052 LOCATION:Room: B1220\, Bldg: SEH\, 800 22nd St NW\, Washington\, District o f Columbia\, United States\, 20052 ORGANIZER:korman@gwu.edu SEQUENCE:3 SUMMARY:Distinguished Magnetics Lecture: Tuning Magnetic Anisotropy in Nano structures for Biomedical and Electromagnetic Applications URL;VALUE=URI:https://events.vtools.ieee.org/m/179253 X-ALT-DESC:Description: <br /><p>Magnetic nanoparticles have been building blocks in applications ranging from high density recording to spintronics and nanomedicine [1]. Magnetic anisotropies in nanoparticles arising from surfaces\, shapes\, and interfaces in hybrid structures are important in d etermining the functional response in various applications. In this talk I will first introduce the basic aspects of anisotropy and discuss resonant radio-frequency (RF) transverse susceptibility\, which we have used exten sively\, as a powerful method to probe the effective anisotropy in magneti c materials. The tuning of anisotropy has a direct impact on the performan ce of functional magnetic nanoparticles in biomedical applications such as contrast enhancement in magnetic resonance imaging and magnetic hyperther mia for cancer therapy. I will focus on the role of tuning surface and int erfacial anisotropy with a goal to enhance specific absorption rate or hea ting efficiency. Strategies going beyond simple spherical structures to in clude exchange coupled core-shell nanoparticles\, nanowires\, and nanotube s\, can be exploited to increase heating efficiency in magnetic hypertherm ia [2]\, [3]. In addition to biomedical applications\, composites of aniso tropic nanoparticles dispersed in polymers pave the way to a range of elec trically and magnetically tunable materials for RF and microwave device ap plications [4]. This lecture will combine insights into fundamental physic s of magnetic nanostructures along with recent research advances in their application to nanomedicine and electromagnetic devices.</p>\n<p style="fo nt-weight: 400\;">[1]&nbsp\; E. A. P&eacute\;rigo\, G. Hemery\, O. Sandre\ , D. Ortega\, E. Garaio\, F. Plazaola\, and F. J. Teran\, &ldquo\;Fundamen tals and advances in magnetic hyperthermia\,&rdquo\; Appl. Phys. Rev.\, vo l. 2\, 041302\, 2015.</p>\n<p style="font-weight: 400\;">[2]&nbsp\; Z. Nem ati\, J. Alonso\, H. Khurshid\, M. H. Phan\, and H. Srikanth\, &ldquo\;Cor e/shell iron/iron oxide nanoparticles: Are they promising for magnetic hyp erthermia?&rdquo\; RSC Advances\, vol. 6\, 38697\, 2016.</p>\n<p style="fo nt-weight: 400\;">[3]&nbsp\; H. Khurshid\, M.-H. Phan\, P. Mukherjee\, and H. Srikanth\, &ldquo\;Tuning exchange bias in Fe/-Fe2O3 core-shell nan oparticles: Impacts of interface and surface spins\,&rdquo\; Appl. Phys. L ett.\, vol. 104\, 072407\, 2014.</p>\n<p style="font-weight: 400\;">[4]&nb sp\; K. Stojak\, S. Pal\, H. Srikanth\, C. Morales\, J. Dewdney\, T. Welle r\, and J. Wang\, &ldquo\;Polymer nanocomposites exhibiting magnetically t unable microwave properties\,&rdquo\; Nanotechnology\, vol. 22\, 135602\, 2011.</p>\n<p style="font-weight: 400\;"><strong>Biography</strong></p>\n< p>Hari Srikanth is a professor of physics at the University of South Flori da (USF). He received the Ph.D. in experimental condensed matter physics f rom the Indian Institute of Science. After postdoctoral research for sever al years\, he joined USF in 2000\, where he established the Functional Mat erials Laboratory. His research spans a wide range of topics including mag netic nanoparticles\, magnetic refrigerant materials\, spin calorics\, and complex oxides. He has published about 250 journal articles and given num erous invited talks.</p>\n<p>Dr. Srikanth is a Fellow of the American Phys ical Society and a Senior Member of IEEE. He is an associate editor of the Journal of Applied Physics. He has been closely involved with the Magneti sm and Magnetic Materials and INTERMAG conferences for more than 15 years\ , serving as editor\, publications chair\, and as a member of program comm ittees.</p>\n<p>Contact: Hari Srikanth\, Department of Physics\, Universit y of South Florida\, 4202 E. Fowler Ave.\, Tampa\, FL 33620\, USA\; e-mail : sharihar@usf.edu.</p> END:VEVENT END:VCALENDAR