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Magnetic excitations in the S = {1/2} quasi-one-dimensional magnet Sr{sub 14{minus}x}Ca{sub x}Cu{sub 24}O{sub 41}
Author(s) -
Masaaki Matsuda,
Kenji Katsumata,
S. M. Shapiro,
G. Shirane
Publication year - 1998
Language(s) - English
Resource type - Reports
DOI - 10.2172/676880
Subject(s) - excitation , crystallography , order (exchange) , chemistry , neutron scattering , scattering , substitution (logic) , state (computer science) , physics , condensed matter physics , materials science , atomic physics , optics , quantum mechanics , finance , algorithm , computer science , economics , programming language
Neutron scattering experiments have been performed on Sr{sub 14{minus}x}Ca{sub x}Cu{sub 24}O{sub 41} (x = 3 and 6), which consists of CuO{sub 2} chains and CuO{sub 2}O{sub 3} ladders, in order to study the effect of Ca substitution on the dimerized state in the chains. The Ca substitution broadens the excitation peak although the excitation energy is almost unchanged. The effects of Ca and Y substitution on the dimerized state are compared

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