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SUMMARY:SNSS Seminar Series: Neutron Diffraction\, Speaker 3 - Magnetic di
 ffraction: Exploring hidden magnetic symmetries
DTSTART;VALUE=DATE-TIME:20210511T120000Z
DTEND;VALUE=DATE-TIME:20210511T123000Z
DTSTAMP;VALUE=DATE-TIME:20260528T085829Z
UID:indico-contribution-1075@lindico453.srv.lu.se
DESCRIPTION:Speakers: Johan Cedervall (Stockholm University)\nMagnetic mat
 erials are found everywhere and in all sorts of applications in the societ
 y today and new applications are constantly being developed. Some examples
  are generators in\nwindmills and electrical motors and magnetic cooling. 
 In addition\, to effectively operate a generator\, it requires several typ
 es of specialised magnetic materials. To understand materials\nmagnetic be
 haviour\, good knowledge of its structure is required\, something that dif
 fraction methods can provide. Neutrons weak interaction with matter\, give
 n their uncharged state\, makes them interact with the nuclei and in a non
 -magnetised material\, the nuclear structure can be explored. However\, gi
 ven that neutrons also carries a magnetic moment\, they will interact with
  unpaired electrons in a material\, giving an additional scattering featur
 e\, i.e. magnetic scattering. In the non-magnetised paramagnetic state\, t
 his additional scattering will be diffuse\, whereas in a magnetised state 
 sharp Bragg peaks will occur.\nIn this talk\, I will explore a variety of 
 magnetic materials with different magnetic interactions and guide you thro
 ugh how the magnetic structures where resolved. To do so\, the basics of\n
 magnetic symmetries and their relation to conventional symmetries and spac
 e groups will be covered. The shown scientific examples will cover both ma
 terials with interesting magnetic interactions as well as materials that h
 as a potential to be used in applications as permanent magnets or magnetic
  refrigeration.\n\nhttps://lindico453.srv.lu.se/event/214/contributions/10
 75/
LOCATION:
URL:https://lindico453.srv.lu.se/event/214/contributions/1075/
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