Antiferro quadrupolar ordering in Fe intercalated few layers graphene | Zendy

Abu Jahid Akhtar | Zendy; Abhisek Gupta | Zendy; D. Chakravorty | Zendy; Shyamal K. Saha | Zendy

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Antiferro quadrupolar ordering in Fe intercalated few layers graphene

Author(s) -

Abu Jahid Akhtar,

Abhisek Gupta,

D. Chakravorty,

Shyamal K. Saha

Publication year - 2013

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4816791

Subject(s) - graphene , quadrupole , antiferromagnetism , magnetic moment , condensed matter physics , materials science , dipole , atom (system on chip) , moment (physics) , nanotechnology , chemistry , physics , atomic physics , organic chemistry , classical mechanics , computer science , embedded system

The π electron cloud above and below the honeycomb structure of graphene causes each carbon atom to carry a permanent electric quadrupole moment which can attach any cation to impart interesting physical properties. We have synthesized Fe intercalated graphene structures to investigate tunable magnetic properties as a result of this chemical modification. An interesting antiferro quadrupolar ordering is observed which arises due to a coupling between magnetic dipole moment of Fe and electric quadrupole moment on graphene surface. In contrast to antiferromagnetic Neel temperature (TN), here the ordering temperature (TQ) increases from 35.5 K to 47.5 K as the magnetic field is raised upto 1 Tesla

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