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Author Shi, L. R. ♦ Xia, Z. C. ♦ Jin, Z. ♦ Wei, M. ♦ Huang, J. W. ♦ Chen, B. R. ♦ Xiao, L. X. ♦ Zuo, H. K. ♦ Ouyang, Z. W.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ CRITICAL FIELD ♦ DILUTION ♦ DOPED MATERIALS ♦ GALLIUM IONS ♦ GROUND STATES ♦ HYSTERESIS ♦ IRON IONS ♦ MAGNETIC MOMENTS ♦ MAGNETIC PROPERTIES ♦ MAGNETIZATION ♦ MONOCRYSTALS ♦ PHASE DIAGRAMS ♦ SPIN ♦ SPIN FLIP ♦ TEMPERATURE DEPENDENCE ♦ TRANSITION TEMPERATURE ♦ X-RAY DIFFRACTION
Abstract The structure and magnetic properties of non-magnetic Ga{sup 3+} ion doped CuFe{sub 1−x}Ga{sub x}O{sub 2} (x=0, 0.03, and 0.05) single crystal samples were investigated. X-ray diffraction patterns analysis confirms that the samples are single-phase crystallizing. Doping effect on the magnetic behavior of the ground state and the field-induced spin flip/flop transitions were detected. The transition temperatures and critical magnetic fields of the spin flip/flop, as well as the magnetic hysteresis directly depend on the Ga{sup 3+} doping level. Such doping effects may associate with the competition between dilution effect (partial release of spin frustration) and the induced local magnetic moment, which is the result of the changed magnetic coupling both inter- and intra-planes of Fe ions. Based on the experimental results, the effects of Ga{sup 3+} doping on the spin flip/flop behavior and a detailed high field magnetic diagram were assumed. - Graphical abstract: Temperature dependence of the critical fields for CuFe{sub 1−x}Ga{sub x}O{sub 2} (x=0, 0.03, 0.05). (a) and (b) The magnetic field's parallel and perpendicular cases respectively. In which, the square, circle and triangular represent x=0, 0.03 and 0.05 respectively. - Highlights: • Single crystal samples of CuFe{sub 1−x}Ga{sub x}O{sub 2} (x=0, 0.03 and 0.05) were grown. • Magnetic field dependence of magnetization was measured in pulsed high magnetic field up to 54 T with different temperatures. • The magnetic field induced multi-step-like transitions were observed in all the single crystal samples. • A detailed magnetic diagram was assumed based on the experimental results.
ISSN 00224596
Educational Use Research
Learning Resource Type Article
Publisher Date 2014-11-15
Publisher Place United States
Journal Journal of Solid State Chemistry
Volume Number 219


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