TY - JOUR
T1 - High-field magnetization of an S = 1/2 F-F-AF-AF tetramer chain
AU - Hagiwara, M.
AU - Narumi, Y.
AU - Minami, K.
AU - Kindo, K.
N1 - Funding Information:
M.H. thanks Dr. K. Katsumata for access to the SQUID magnetometer in RIKEN. This work was partly supported by the Grant-in-Aid for Scientific Research from the Japanese Ministry of Education, Science, Sports and Culture. Thanks are due to the Chemical Analysis Unit in RIKEN for the chemical analysis.
PY - 2001/1
Y1 - 2001/1
N2 - We performed magnetic susceptibility and high-field magnetization measurements on a powder sample of a copper tetramer chain compound Cu(3-Clpy)2(N3)2 (3-Clpy = 3-Chloropyridine). Magnetic susceptibility (χ) times temperature (T) decreases gradually with decreasing temperature from 300 K and increases steeply after reaching a minimum at 10 K. The high-field magnetization of this compound at 1.3 K shows a plateau at a half of the saturation magnetization up to 250 kOe and a successive abrupt increase near the saturation field. We compare these experimental data with those calculated for the S = 1/2 ferromagnetic-ferromagnetic-antiferromagnetic-antiferromagnetic (F-F-AF-AF) tetramer chain and obtained fairly good agreement between them when the ratio of the ferromagnetic exchange constant to the antiferromagnetic one is -0.5. The abrupt increase of magnetization near the saturation field is discussed.
AB - We performed magnetic susceptibility and high-field magnetization measurements on a powder sample of a copper tetramer chain compound Cu(3-Clpy)2(N3)2 (3-Clpy = 3-Chloropyridine). Magnetic susceptibility (χ) times temperature (T) decreases gradually with decreasing temperature from 300 K and increases steeply after reaching a minimum at 10 K. The high-field magnetization of this compound at 1.3 K shows a plateau at a half of the saturation magnetization up to 250 kOe and a successive abrupt increase near the saturation field. We compare these experimental data with those calculated for the S = 1/2 ferromagnetic-ferromagnetic-antiferromagnetic-antiferromagnetic (F-F-AF-AF) tetramer chain and obtained fairly good agreement between them when the ratio of the ferromagnetic exchange constant to the antiferromagnetic one is -0.5. The abrupt increase of magnetization near the saturation field is discussed.
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U2 - 10.1016/S0921-4526(00)00601-3
DO - 10.1016/S0921-4526(00)00601-3
M3 - Article
AN - SCOPUS:0035056528
VL - 294-295
SP - 30
EP - 33
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
ER -