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SUMMARY:Detecting Axion Dark Matter by Artificial Magnetoelectric Material
 s
DTSTART;VALUE=DATE-TIME:20260811T084000Z
DTEND;VALUE=DATE-TIME:20260811T090000Z
DTSTAMP;VALUE=DATE-TIME:20260913T134817Z
UID:indico-contribution-2696@indico.itp.ac.cn
DESCRIPTION:Speakers: Chenhui Xie (School of Physics\, Beijing Institute o
 f Technology\, Beijing\, China)\nAxions are considered a key component of 
 dark matter\, characterized by very weak couplings to fermions and Chern-S
 imons couplings to gauge fields. We propose a novel detection mechanism ba
 sed on symmetry-breaking magnetoelectric materials with a linear axionic c
 oupling between magnetization and ferroelectric polarization. The focus is
  on a strain gradient  $\\text{Sr}_2\\text{IrO}_4$ film\, where the breaki
 ng of space-inversion symmetry results in an emergent polar phase and an o
 ut-of-plane magnetic moment\, exhibiting a flexomagnetoelectric effect. In
  this material\, the linear $\\mathbf{P} || \\mathbf{M}$ enables a direct 
 coupling between the external axion field and the intrinsic axion-like fie
 ld\, which amplifies the weak electromagnetic signals induced by axions\, 
 paving the way for pioneering axion detection. In contrast to conventional
  detection techniques\, this mechanism is expected to enhance the sensitiv
 ity of the axion-electron and axion-photon coupling\, providing a novel pl
 atform for axion detection and advancing the study of dark matter through 
 the magnetoelectric effect.\n\nhttps://indico.itp.ac.cn/event/416/contribu
 tions/2696/
LOCATION:Conference Center (2F) Back Area
URL:https://indico.itp.ac.cn/event/416/contributions/2696/
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