BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Los_Angeles BEGIN:DAYLIGHT DTSTART:20260308T030000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:PDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20251102T010000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:PST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260204T163116Z UID:B370616D-30E9-4A38-8934-84AC4B6E4623 DTSTART;TZID=America/Los_Angeles:20260219T113000 DTEND;TZID=America/Los_Angeles:20260219T131500 DESCRIPTION:X-ray Microscopy of Magnetic Nanostructures\n\nAbstract:\n\nMag netic nanostructures play a crucial role on modern data storage and proces sing technology.\n\nUsing soft x-ray microscopy and spectroscopy at a Nati onal User Facility like e.g. the Advanced Light Source we are able to gain insight into the relevant processes in magnetic nanostructures and comple x magnetic interfaces with picosecond time resolution and nanometer spatia l resolution.\n\n[]\n\nX-ray based spectroscopy and microscopy have been s hown to be a powerful tool for the characterization of complex materials o n the nanoscale\, from battery materials to topological magnetic monopoles . Using polarization-dependent effects (dichroism)\, we are able to learn about magnetic\, structural\, and electronic order\, with tens of nanomete r spatial resolution. In addition\, so-called photon-in\, photon-out techn iques are insensitive to the presence of external stimuli or even changes in ambient conditions\, which allows us to study devices in-operando in st ate-of-the-art X-ray microscopes. Altogether\, these features have led to the development of a strong international user community focused on\, e.g. \, battery devices or magnetic and electric devices. However\, the feature that synchrotrons are pulsed sources of X-rays is typically less used by experimentalists.\n\nSynchrotrons operate at repetition rates up to 500 MH z\, producing X-ray pulses that are less than 100 picoseconds long with ve ry little temporal jitter (≈10 ps). By using point detectors\, e.g.\, Av alanche Photodiodes\, and fast electronics with bandwidths of 10 GHz or mo re\, it is then possible to follow reversible processes with about 10 pico seconds time resolution.\n\nIn this talk\, I will describe several example s of how we can use synchrotron radiation to gain insight into materials t hat are otherwise very difficult or impossible to obtain using lab-based m ethods. I will also describe current efforts to increase sample throughput at synchrotrons\, which are typically more geared towards fundamental sci ence than applied technological questions.\n\nRead more:\n[Mutual modulati on between surface chemistry and bulk microstructure in nickel-rich layere d oxide battery cathode materials](https://ieee.us6.list-manage.com/track/ click?u=4f23d76911d28dcc51bf71bce&id=6703a3bf25&e=5f7fff72ae)\nhttps://iee e.us6.list-manage.com/track/click?u=4f23d76911d28dcc51bf71bce&id=fc3b90f1f 9&e=5f7fff72ae[Imaging Topological Magnetic Monopoles in 3D](https://ieee. us6.list-manage.com/track/click?u=4f23d76911d28dcc51bf71bce&id=522400335b& e=5f7fff72ae)\n\nSpeaker:\n\nDr. Hendrik Ohldag\n\nStaff Scientist\nSpectr omicroscopy\, Photon Science Operations\n\nThe Advanced Light Source\nLawr ence Berkeley National Laboratory\n\nIEEE Magnetics Society\, IEEE Fellow\ n\nHendrik Ohldag received the Ph.D. in experimental physics from the Univ ersität Düsseldorf\, Germany\, in 2002.\n\nHe joined the Stanford Synchr otron Radiation Light Source (SSRL) in 1999 as a research assistant as par t of his Ph.D. research. After a postdoctoral fellowship at SSRL\, he beca me a permanent member of the research staff in 2005 before he joined the A dvanced Light Source (ALS) in Berkeley as a staff member in 2018.\n\nDr. O hldag’s research focuses on using polarized X-rays generated by a synchr otron to study magnetic materials and complex chemical surfaces and interf aces in advanced X-ray microscope\n\nDr. Ohldag was awarded the David. A S hirley Award at the ALS in 2006 for “outstanding contribution in using p hotoemission electron microscopy for the study of magnetic materials."\n\n Dr. Ohldag is a member of the IEEE Magnetics Society and the chair of the Magnetic Interfaces and Nanoscale Device Division of the American Vacuum S ociety. He was a Distinguished Lecturer of the IEEE Magnetics Society in 2 017.\n\nHe has authored or co-authored over 50 peer-reviewed papers and bo ok chapters which have been cited over 2500 times. He has participated in the organization of 25 international conferences and workshops. He has bee n named a fellow of the American Physical Society\, the American Vacuum So ciety\, and the IEEE. He holds adjunct faculty positions at the University of California\, Santa Cruz and Stanford University.”\n\nAGENDA:\n\nThur sday February 19\, 2026\n\n11:30 AM: Networking\, Pizza & Drinks\n\nNoon - - 1 pm: Seminar\n\nPlease register on Eventbrite before 9:30 AM on Thursda y February 19\, 2026\n\n$4 IEEE members $6 non IEEE members\n\n(discounts for unemployed and students )\n\nSee examplesAdd\n\nBldg: ==> Use corner e ntrance: Kifer Road / San Lucar Court ==> Do not enter at main entrance on Kifer Road\, EAG Labs\, 810 Kifer Road\, Sunnyvale\, California\, Califor nia\, United States\, 95051 LOCATION:Bldg: ==> Use corner entrance: Kifer Road / San Lucar Court ==> Do not enter at main entrance on Kifer Road\, EAG Labs\, 810 Kifer Road\, Su nnyvale\, California\, California\, United States\, 95051 ORGANIZER:G.M.Friedman@ieee.org SEQUENCE:29 SUMMARY:X-ray Microscopy of Magnetic Nanostructures URL;VALUE=URI:https://events.vtools.ieee.org/m/532772 X-ALT-DESC:Description: <br /><div class="eds-l-mar-vert-6 eds-l-sm-mar-ver t-4 eds-text-bm structured-content-rich-text">\n<div class="eds-text--left ">\n<h1 class="event-title css-0">X-ray Microscopy of Magnetic Nanostructu res</h1>\n</div>\n</div>\n<div class="eds-l-mar-vert-6 eds-l-sm-mar-vert-4 eds-text-bm structured-content-rich-text">\n<div class="eds-text--left">\ n<p>&nbsp\;</p>\n<p><strong>Abstract:</strong></p>\n<h3><strong>Magnetic n anostructures play a crucial role on modern data storage and processing te chnology.</strong></h3>\n<h3><strong>Using soft x-ray microscopy and spect roscopy at a National User Facility like e.g. the Advanced Light Source we are able to gain insight into the relevant processes in magnetic nanostru ctures and complex magnetic interfaces with picosecond time resolution and nanometer spatial resolution.</strong></h3>\n<p>&nbsp\;<img src="https:// events.vtools.ieee.org/vtools_ui/media/display/4018dcbd-3c71-44a1-9d84-544 27bfe9dec" alt="" width="804" height="462"></p>\n<h3><strong>X-ray based s pectroscopy and microscopy have been shown to be a powerful tool for the c haracterization of complex materials on the nanoscale\, from battery mater ials to topological magnetic monopoles. Using polarization-dependent effec ts (dichroism)\, we are able to learn about magnetic\, structural\, and el ectronic order\, with tens of nanometer spatial resolution. In addition\, so-called photon-in\, photon-out techniques are insensitive to the presenc e of external stimuli or even changes in ambient conditions\, which allows us to study devices in-operando in state-of-the-art X-ray microscopes. Al together\, these features have led to the development of a strong internat ional user community focused on\, e.g.\, battery devices or magnetic and e lectric devices. However\, the feature that synchrotrons are pulsed source s of X-rays is typically less used by experimentalists.<br><br>Synchrotron s operate at repetition rates up to 500 MHz\, producing X-ray pulses that are less than 100 picoseconds long with very little temporal jitter (&asym p\;10 ps). By using point detectors\, e.g.\, Avalanche Photodiodes\, and f ast electronics with bandwidths of 10 GHz or more\, it is then possible to follow reversible processes with about 10 picoseconds time resolution.<br ><br>In this talk\, I will describe several examples of how we can use syn chrotron radiation to gain insight into materials that are otherwise very difficult or impossible to obtain using lab-based methods. I will also des cribe current efforts to increase sample throughput at synchrotrons\, whic h are typically more geared towards fundamental science than applied techn ological questions.<br><br>Read more:&nbsp\;<br>&nbsp\; &nbsp\; &nbsp\;<a href="https://ieee.us6.list-manage.com/track/click?u=4f23d76911d28dcc51bf7 1bce&amp\;id=6703a3bf25&amp\;e=5f7fff72ae" target="_blank" rel="nofollow n oopener noreferrer">Mutual modulation between surface chemistry and bulk m icrostructure&nbsp\;in nickel-rich layered oxide battery cathode materials </a><br>&nbsp\; &nbsp\;&nbsp\;<a href="https://ieee.us6.list-manage.com/tr ack/click?u=4f23d76911d28dcc51bf71bce&amp\;id=fc3b90f1f9&amp\;e=5f7fff72ae " target="_blank" rel="nofollow noopener noreferrer">&nbsp\;</a><a href="h ttps://ieee.us6.list-manage.com/track/click?u=4f23d76911d28dcc51bf71bce&am p\;id=522400335b&amp\;e=5f7fff72ae" target="_blank" rel="nofollow noopener noreferrer">Imaging Topological Magnetic Monopoles in 3D</a></strong></h3 >\n<p>&nbsp\;</p>\n<p><strong>Speaker:</strong></p>\n<h3><strong>Dr. Hendr ik Ohldag</strong></h3>\n<h3><strong>Staff Scientist</strong><br><strong>S pectromicroscopy\, Photon Science Operations</strong></h3>\n<h3><strong>Th e Advanced Light Source</strong><br><strong>Lawrence Berkeley National Lab oratory</strong></h3>\n<h3><strong>IEEE Magnetics Society\, IEEE Fellow</s trong></h3>\n<p>&nbsp\;</p>\n<h3><strong>Hendrik Ohldag received the Ph.D. in experimental physics from the Universit&auml\;t D&uuml\;sseldorf\, Ger many\, in 2002. </strong></h3>\n<h3><strong>He joined the Stanford Synchro tron Radiation Light Source (SSRL) in 1999 as a research assistant as part of his Ph.D. research. After a postdoctoral fellowship at SSRL\, he becam e a permanent member of the research staff in 2005 before he joined the Ad vanced Light Source (ALS) in Berkeley as a staff member in 2018.</strong>< /h3>\n<h3><strong>Dr. Ohldag&rsquo\;s research focuses on using polarized X-rays generated by a synchrotron to study magnetic materials and complex chemical surfaces and interfaces in advanced X-ray microscope</strong></h3 >\n<h3><strong>Dr. Ohldag was awarded the David. A Shirley Award at the AL S in 2006 for &ldquo\;outstanding contribution in using photoemission elec tron microscopy for the study of magnetic materials." &nbsp\;</strong></h3 >\n<h3><strong>Dr. Ohldag </strong><strong>is a member of the IEEE Magneti cs Society and the chair of the Magnetic Interfaces and Nanoscale Device D ivision of the American Vacuum Society. He was a Distinguished Lecturer of the IEEE Magnetics Society in 2017. </strong></h3>\n<h3><strong>He has au thored or co-authored over 50 peer-reviewed papers and book chapters which have been cited over 2500 times. He has participated in the organization of 25 international conferences and workshops. &nbsp\;He has been named a fellow of the American Physical Society\, the American Vacuum Society\, an d the IEEE. He holds adjunct faculty positions at the University of Califo rnia\, Santa Cruz and Stanford University.&rdquo\;</strong></h3>\n<p>&nbsp \;&nbsp\;</p>\n<h3><strong>AGENDA:</strong></h3>\n</div>\n</div>\n<div cla ss="eds-l-mar-vert-6 eds-l-sm-mar-vert-4 eds-text-bm structured-content-ri ch-text">\n<div class="eds-text--left">\n<div class="css-188aeyp e9y8vn50" >\n<div id="AboutThisEventSection" class="css-cd870x em1van10" tabindex="0 " role="button" data-testid="AboutThisEventSection" aria-label="Overview. Use this section to provide more details about your event. You can include things to know\, venue information\, accessibility options&mdash\;anythin g that will help people know what to expect.">\n<div id="AboutThisEventPre view" class="css-1dykrq ezg9ojv5" data-testid="AboutThisEventPreview">\n<d iv data-testid="ModulesListPreview">\n<div class="css-1hbyxwu e1pmrtpl0">\ n<p><strong>Thursday February 19</strong><strong>\, 2026</strong></p>\n<p> <strong>11:30 AM: Networking\, Pizza &amp\; Drinks</strong></p>\n<p><stron g>Noon -- 1 pm: Seminar</strong></p>\n<p><strong>Please register on Eventb rite before 9:30 AM on</strong><strong> Thursday February 19\, 2026</stron g></p>\n<p><strong>$4 IEEE members&nbsp\; $6 non IEEE members </strong></p >\n<p><strong>(discounts for unemployed and students</strong> )</p>\n</div >\n</div>\n</div>\n</div>\n</div>\n<div class="css-y3qgqv ehpy08z1" tabind ex="0" data-testid="AddMore">\n<div class="css-q52w17 ehpy08z10">&nbsp\;</ div>\n<div class="css-69i1ev ehpy08z2" data-testid="AddMoreAgendaItem" ari a-label="Agenda">\n<div class="css-70qvj9 ehpy08z6"><button class="Button_ root__j2zr8 Button_ghost__j2zr8 Button_defaultSize__j2zr8 css-1cg3r53 ehpy 08z8" type="button" aria-disabled="false" aria-label="See examples for age nda" data-testid="SeeAgendaExamples">See examples</button><button class="B utton_root__j2zr8 Button_secondary__j2zr8 Button_defaultSize__j2zr8 css-11 dekjt ehpy08z7" type="button" aria-disabled="false" aria-label="Agenda. 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