BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Europe/Paris BEGIN:DAYLIGHT DTSTART:20260329T030000 TZOFFSETFROM:+0100 TZOFFSETTO:+0200 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZNAME:CEST END:DAYLIGHT BEGIN:STANDARD DTSTART:20261025T020000 TZOFFSETFROM:+0200 TZOFFSETTO:+0100 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:CET END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260613T104132Z UID:76472EE4-150D-44AF-91A6-2C3ADC027BCD DTSTART;TZID=Europe/Paris:20260622T110000 DTEND;TZID=Europe/Paris:20260622T120000 DESCRIPTION:The flow of electron spins\, the so-called “spin current”\, is a key concept in the recent progress in\n\nspintronics [1\,2]. In ferr omagnetic metals and semiconductors\, the spin current interacts with\n\nm agnetization by the exchange interaction and induces the motion of the mag netization due to the angular\n\nmomentum conservation\, the so-called spi n transfer torque. Its inverse effect is called the spin-motive force\n\nw hich is the electric voltage generated by the magnetization dynamics due t o the energy conservation\n\nbetween electrical current and magnetization [2\,3]. The spin motive-force is derived by introducing spin\n\nBerry phas e in the Faraday’s law of electro-magnetism. Spin current is induced and manipulated by heat [4]\n\nand mechanical motion [5-7] as well. The inter conversion between various energies through spin current \,\n\nthe so-call ed “power spintronics”\, will be discussed.\n\n[1] “Spin Current” eds. S. Maekawa\, et al. (Oxford University Press\, 2012 and 2017)\,\n\n[2 ] S. Maekawa\, T. Kikkawa\, H. Chudo\, J. Ieda and E. Saitoh: J. Appl. Phy s. 133\, 020902 (2023).\n\n[3] S.E. Barnes and S. Maekawa\,: Phys. Rev. Le tt. 98\, 246601 (2007)\,\n\n[4] K. Uchida\, S. Maekawa\, et al: IEEE Proc. 104\, 1946 (2016)\,\n\n[5] R. Takahashi\, S. Maekawa\, et al.: Nature Phy s. 12\, 52 (2016)\,\n\n[6] R. Takahashi\, S. Maekawa\, et al.: Nature Comm un. 11\, 3009 (2020).\n\n[7] J. Fujimoto\, S. Maekawa\, et al.\, Phys. Rev . B103\, L220404 (2021) and PNAS Nexus 3 547 (2024).\n\nBIO\n\nProfessor S adamichi Maekawa is a renowned condensed matter physicist and a pioneer in \n\nthe field of spintronics. He received his Doctor of Science degree fro m Tohoku University in\n\n1975 and has made groundbreaking contributions t o the theory of strongly correlated\n\nelectron systems\, spin transport\, and magnetic nanostructures. His research has\n\nsignificantly advanced t he understanding of spin-dependent phenomena and their\n\napplications in modern information technologies. Professor Maekawa has held numerous\n\nle adership positions\, including Director of the Advanced Science Research C enter at the\n\nJapan Atomic Energy Agency and Senior Advisor at the RIKEN Center for Emergent Matter\n\nScience. He is currently Professor Emeritus at Tohoku University and serves as Science and Technology Advisor\n\nto t he Minister of Defense of Japan. His scientific excellence has been recogn ized through many prestigious\n\nhonors\, including the IUPAP Magnetism Aw ard and Néel Medal\, the Humboldt Award\, the Honda Memorial\n\nAward\, a nd fellowship in the American Physical Society. A Clarivate Highly Cited R esearcher\, Professor Maekawa\n\nremains one of the most influential figur es in condensed matter physics and spintronics worldwide.\n\nRoom: 4-A014\ , Bldg: institut Jean Lamour \, 2 allée André Guinier\, 54011 Nancy\, Na ncy\, Lorraine\, France\, 54011 LOCATION:Room: 4-A014\, Bldg: institut Jean Lamour \, 2 allée André Guini er\, 54011 Nancy\, Nancy\, Lorraine\, France\, 54011 ORGANIZER:stephane.mangin@univ-lorraine.fr SEQUENCE:3 SUMMARY:Power Spintronics URL;VALUE=URI:https://events.vtools.ieee.org/m/563588 X-ALT-DESC:Description: <br /><p class="p1">The flow of electron spins\, th e so-called &ldquo\;spin current&rdquo\;\, is a key concept in the recent progress in</p>\n<p class="p1">spintronics [1\,2]. In ferromagnetic metals and semiconductors\, the spin current interacts with</p>\n<p class="p1">m agnetization by the exchange interaction and induces the motion of the mag netization due to the angular</p>\n<p class="p1">momentum conservation\, t he so-called spin transfer torque. Its inverse effect is called the spin-m otive force</p>\n<p class="p1">which is the electric voltage generated by the magnetization dynamics due to the energy conservation</p>\n<p class="p 1">between electrical current and magnetization [2\,3]. The spin motive-fo rce is derived by introducing spin</p>\n<p class="p1">Berry phase in the F araday&rsquo\;s law of electro-magnetism. Spin current is induced and mani pulated by heat [4]</p>\n<p class="p1">and mechanical motion [5-7] as well . The interconversion between various energies through spin current \,</p> \n<p class="p1">the so-called &ldquo\;power spintronics&rdquo\;\, will be discussed.</p>\n<p class="p1">[1] &ldquo\;Spin Current&rdquo\; eds. S. Mae kawa\, et al. (Oxford University Press\, 2012 and 2017)\,</p>\n<p class="p 1">[2] S. Maekawa\, T. Kikkawa\, H. Chudo\, J. Ieda and E. Saitoh: J. Appl . Phys. 133\, 020902 (2023).</p>\n<p class="p1">[3] S.E. Barnes and S. Mae kawa\,: Phys. Rev. Lett. 98\, 246601 (2007)\,</p>\n<p class="p1">[4] K. Uc hida\, S. Maekawa\, et al: IEEE Proc. 104\, 1946 (2016)\,</p>\n<p class="p 1">[5] R. Takahashi\, S. Maekawa\, et al.: Nature Phys. 12\, 52 (2016)\,</ p>\n<p class="p1">[6] R. Takahashi\, S. Maekawa\, et al.: Nature Commun. 1 1\, 3009 (2020).</p>\n<p class="p1">[7] J. Fujimoto\, S. Maekawa\, et al.\ , Phys. Rev. B103\, L220404 (2021) and PNAS Nexus 3 547 (2024).</p>\n<p cl ass="p1">&nbsp\;</p>\n<p class="p1"><strong>BIO&nbsp\;</strong></p>\n<p cl ass="p1">Professor Sadamichi Maekawa is a renowned condensed matter physic ist and a pioneer in</p>\n<p class="p1">the field of spintronics. He recei ved his Doctor of Science degree from Tohoku University in</p>\n<p class=" p1">1975 and has made groundbreaking contributions to the theory of strong ly correlated</p>\n<p class="p1">electron systems\, spin transport\, and m agnetic nanostructures. His research has</p>\n<p class="p1">significantly advanced the understanding of spin-dependent phenomena and their</p>\n<p c lass="p1">applications in modern information technologies. Professor Maeka wa has held numerous</p>\n<p class="p1">leadership positions\, including D irector of the Advanced Science Research Center at the</p>\n<p class="p1"> Japan Atomic Energy Agency and Senior Advisor at the RIKEN Center for Emer gent Matter</p>\n<p class="p1">Science. He is currently Professor Emeritus at Tohoku University and serves as Science and Technology Advisor</p>\n<p class="p1">to the Minister of Defense of Japan. His scientific excellence has been recognized through many prestigious</p>\n<p class="p1">honors\, including the IUPAP Magnetism Award and N&eacute\;el Medal\, the Humboldt Award\, the Honda Memorial</p>\n<p class="p1">Award\, and fellowship in th e American Physical Society. A Clarivate Highly Cited Researcher\, Profess or Maekawa</p>\n<p class="p1">remains one of the most influential figures in condensed matter physics and spintronics worldwide.</p>\n<p class="p3"> &nbsp\;</p> END:VEVENT END:VCALENDAR