Importance of stacking to the collinear magnetic phases of the geometrically frustrated antiferromagnet CuFeO2

被引：28
|
作者：
Fishman, R. S. [1 ]
Ye, F. [2 ]
Fernandez-Baca, J. A. [2 ,3 ]
Haraldsen, J. T. [1 ]
Kimura, T. [4 ]
机构：
[1] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA
[2] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA
[3] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37831 USA
[4] Osaka Univ, Sch Engn Sci, Div Mat Phys, Osaka 5608531, Japan
来源：
PHYSICAL REVIEW B | 2008年 / 78卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.78.140407
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The correct stacking of hexagonal layers is used to obtain accurate estimates for the exchange and anisotropy parameters of the geometrically frustrated antiferromagnet CuFeO2. Those parameters are highly constrained by the stability of a collinear metamagnetic phase between fields of 13.5 and 20 T. Constrained fits of the spin-wave frequencies of the collinear up arrow up arrow down arrow down arrow phase below 7 T are used to identify the magnetic unit cell of the metamagnetic up arrow up arrow up arrow down arrow down arrow phase, which contains two hexagonal layers and 10 Fe3+ spins.
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页数：4
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