Abstract
Magnetic susceptibility measurement has been carried out on the Haldane system (CH3)4NNi(NO2)3 containing non-magnetic Zn2+ and magnetic Cu2+ impurity ions. For each impure system, magnetic susceptibility is described by the sum of two contributions; one is from the Haldane state and the other is a paramagnetic contribution. The latter contribution increases proportionally with impurity concentration. For 1D system shortened by Zn2+ impurity ions, the paramagnetic contribution obeys the Curie law, and its absolute value of the susceptibility is found to amount nearly 40% of the theoretical estimation for the VBS model where the spin with its value S = 1/2 appears at the both edges of 1D segments. In the case for the system with Cu2+ impurity ions, the paramagnetic contribution is much smaller than the results for the Zn2+ impure systems. This reduction of the magnetic moment of Cu2+ ion for 5 = 1/2 is qualitatively different from the case for the enhanced moment of Cu2+ ion in the anisotropic S = 1 Heisenberg antiferromagnet NENP.
| Original language | English |
|---|---|
| Pages (from-to) | 2610-2613 |
| Number of pages | 4 |
| Journal | journal of the physical society of japan |
| Volume | 65 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Jan 1 1996 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
Doping Effect of Non-Magnetic and Magnetic Impurities on Magnetic Susceptibility of the Haldane System (CH3)4NNi(NO2)3. / Ito, Masakazu; Mito, Masaki; Kawae, Tatsuya; Hitaka, Masako; Takeda, Kazuyoshi.
In: journal of the physical society of japan, Vol. 65, No. 8, 01.01.1996, p. 2610-2613.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Doping Effect of Non-Magnetic and Magnetic Impurities on Magnetic Susceptibility of the Haldane System (CH3)4NNi(NO2)3
AU - Ito, Masakazu
AU - Mito, Masaki
AU - Kawae, Tatsuya
AU - Hitaka, Masako
AU - Takeda, Kazuyoshi
PY - 1996/1/1
Y1 - 1996/1/1
N2 - Magnetic susceptibility measurement has been carried out on the Haldane system (CH3)4NNi(NO2)3 containing non-magnetic Zn2+ and magnetic Cu2+ impurity ions. For each impure system, magnetic susceptibility is described by the sum of two contributions; one is from the Haldane state and the other is a paramagnetic contribution. The latter contribution increases proportionally with impurity concentration. For 1D system shortened by Zn2+ impurity ions, the paramagnetic contribution obeys the Curie law, and its absolute value of the susceptibility is found to amount nearly 40% of the theoretical estimation for the VBS model where the spin with its value S = 1/2 appears at the both edges of 1D segments. In the case for the system with Cu2+ impurity ions, the paramagnetic contribution is much smaller than the results for the Zn2+ impure systems. This reduction of the magnetic moment of Cu2+ ion for 5 = 1/2 is qualitatively different from the case for the enhanced moment of Cu2+ ion in the anisotropic S = 1 Heisenberg antiferromagnet NENP.
AB - Magnetic susceptibility measurement has been carried out on the Haldane system (CH3)4NNi(NO2)3 containing non-magnetic Zn2+ and magnetic Cu2+ impurity ions. For each impure system, magnetic susceptibility is described by the sum of two contributions; one is from the Haldane state and the other is a paramagnetic contribution. The latter contribution increases proportionally with impurity concentration. For 1D system shortened by Zn2+ impurity ions, the paramagnetic contribution obeys the Curie law, and its absolute value of the susceptibility is found to amount nearly 40% of the theoretical estimation for the VBS model where the spin with its value S = 1/2 appears at the both edges of 1D segments. In the case for the system with Cu2+ impurity ions, the paramagnetic contribution is much smaller than the results for the Zn2+ impure systems. This reduction of the magnetic moment of Cu2+ ion for 5 = 1/2 is qualitatively different from the case for the enhanced moment of Cu2+ ion in the anisotropic S = 1 Heisenberg antiferromagnet NENP.
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U2 - 10.1143/JPSJ.65.2610
DO - 10.1143/JPSJ.65.2610
M3 - Article
AN - SCOPUS:0030506823
VL - 65
SP - 2610
EP - 2613
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 8
ER -