Ferromagnetism in  57 Fe‐doped cupric oxide | Zendy

Park Young Ran | Zendy; Kim Kwang Joo | Zendy; Choi Seungli | Zendy; Lee Jung Han | Zendy; Lee Hee Jung | Zendy; Kim Chul Sung | Zendy; Park Jae Yun | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Ferromagnetism in 57 Fe‐doped cupric oxide

Author(s) -

Park Young Ran,

Kim Kwang Joo,

Choi Seungli,

Lee Jung Han,

Lee Hee Jung,

Kim Chul Sung,

Park Jae Yun

Publication year - 2007

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200777116

Subject(s) - ferromagnetism , unpaired electron , materials science , paramagnetism , vacancy defect , spins , ion , doping , oxide , octahedron , condensed matter physics , analytical chemistry (journal) , crystallography , inorganic chemistry , chemistry , nuclear magnetic resonance , electron paramagnetic resonance , metallurgy , physics , optoelectronics , organic chemistry , chromatography

Ferromagnetic properties were observed at room temperature for 57 Fe‐doped cupric oxide (CuO) film and powder samples. Mössbauer spectroscopy measurements on the Fe 0.02 Cu 0.98 O samples revealed that the octahedral Cu 2+ sites are mostly substituted by Fe 3+ ions. Both ferromagnetic and paramagnetic Fe 3+ signals were detected. The Fe 0.02 Cu 0.98 O samples were found to be ferromagnetic even above the Néel temperature of CuO. A carrier localized around oxygen vacancy can mediate a ferromagnetic coupling among neighboring Fe 3+ ions. Additional Li doping into Fe 0.02 Cu 0.98 O resulted in an increase of the ferromagnetic strength. Unpaired s 1 electron in interstitial Li atom is likely to mediate a ferromagnetic coupling between neighboring spins. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research