Doping Effect of Non-Magnetic and Magnetic Impurities on Magnetic Susceptibility of the Haldane System (CH_3)_4NNi (NO_2)_3
スポンサーリンク
概要
- 論文の詳細を見る
Magnetic susceptibility measurement has been carried out on the Haldane system(CH3),)NNi(NOz)3 containing non-magnetic Zn" and magnetic Cu" impurity ions. For eachimpure system, magnetic susceptibility is described by the sum of two contributions; one is fromthe Haldane state and the other is a pararnagnetic contribution. The latter contribution increasesproportionally with impurity concentration. For 10 system shortened by Zn" irnpurity ions,the paramagnetic contribution obeys the Curie law, and its absolute value of the susceptibilityis found to arnount nearly 40% of the theoretical estimation for the VBS model where the spinwith its value S :: 172 appears at the both edges of 10 segments. In the case for the systemwith Cu" impurity ions, the pararnagnetic contribution is much smaller than the results forthe Zn" impure systems. This reduction of the magnetic mornent of Cu" Jon for S : 172 isqualitatively different from the case for the enhanced moment of Cu" ion in the anisotropicS : l Heisenberg antiferrornagnet NENP.
- 社団法人日本物理学会の論文
- 1996-08-15
著者
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KAWAE Tatsuya
Department of Applied Quantum Physics, Kyushu University
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TAKEDA Kazuyoshi
Department of Applied Quantum Physics, Kyushu University
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Ito Masakazu
Department of Applied Science, Faculty of Engineering, Kyushu University
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MITO Masaki
Department of Electronics, Faculty of Engineering, Kyushu Institute of Technology
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Masakazu Ito
Department Of Quantum Matter Adsm Hiroshima University
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Kawae Tatsuya
Department Of Applied Quantum Physics Kyushu University
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Hitaka Masako
Department of Applied Science,Faculty of Engineering,Kyushu University
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Motokawa Mitsuhiro
Crest Japan Science And Technology:institute For Material Research Tohoku University
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Masako Hitaka
Department Of Physics Faculty Of Science And Engineering Saga University
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Ito Masakazu
Department Of Applied Science Faculty Of Engineering Kyushu University
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Takeda Kazuyoshi
Department Of Applied Quantum Physics Faculty Of Engineering Kyushu University:institute Of Environm
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Hitaka Masako
Department of Applied Science, Faculty of Engineering, Kyushu University
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