The Competition between Staggered Field and Antiferromagnetic Interactions in CuGeO3:Fe | Zendy

S. V. Demishev | Zendy; Alexey Semeno | Zendy; A. E. Pronin | Zendy; N. E. Sluchanko | Zendy; Nikolay Samarin | Zendy; Hitoshi Ohta | Zendy; Susumu Okubo | Zendy; Motoi Kimata | Zendy; Keiichi Koyama | Zendy; M. Motokawa | Zendy

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The Competition between Staggered Field and Antiferromagnetic Interactions in CuGeO₃:Fe

Author(s) -

S. V. Demishev,

Alexey Semeno,

A. E. Pronin,

N. E. Sluchanko,

Nikolay Samarin,

Hitoshi Ohta,

Susumu Okubo,

Motoi Kimata,

Keiichi Koyama,

M. Motokawa

Publication year - 2005

Publication title -

progress of theoretical physics supplement

Language(s) - English

Resource type - Journals

ISSN - 0375-9687

DOI - 10.1143/ptps.159.387

Subject(s) - antiferromagnetism , zeeman effect , condensed matter physics , spectral line , electron paramagnetic resonance , competition (biology) , line (geometry) , impurity , zeeman energy , materials science , range (aeronautics) , field (mathematics) , magnetic field , chemistry , nuclear magnetic resonance , physics , geometry , organic chemistry , astronomy , ecology , mathematics , quantum mechanics , pure mathematics , composite material , biology

The EPR spectra along different crystallographic axes for single crystals ofCuGeO3 containing 1% of Fe impurity have been studied in the frequency range60-360 GHz at temperatures 0.5-30 K. The analysis based on the Oshikawa-Affleck(OA) theory suggests that the temperature dependences of the line width andg-factor are formed as a result of the competition between interchainantiferromagnetic interactions and staggered Zeeman energy. It is found thatstaggered magnetic moments in CuGeO3:Fe are located predominantly along b axis.Comment: 9 pages, 4 figures; submitted to QSS04 symposiu

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