Magnetic Properties of Spin-Ladder Compound Sr14 (Cu1-yFey)24O41

被引：3
作者：
Hu Ni [1 ,2 ,3 ]
Lu Zhi-Hong [4 ]
Cheng Li [1 ,2 ]
Xiong Rui [1 ,2 ]
Shi Jing [1 ,2 ,5 ]
机构：
[1] Wuhan Univ, Minist Educ, Key Lab Artificial Micro & Nanostruct, Wuhan 430072, Peoples R China
[2] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Peoples R China
[3] Hubei Univ Technol, Sch Sci, Wuhan 430068, Peoples R China
[4] Wuhan Univ Sci & Technol, Sch Met & Mat, Wuhan 430072, Peoples R China
[5] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2010年 / 27卷 / 08期
基金：
中国国家自然科学基金;
关键词：
METAL-INSULATOR-TRANSITION; MATERIAL SR14CU24O41; CUO2; CHAINS; SUPERCONDUCTIVITY; DYNAMICS; STATE; GAP; NMR; SR14-XCAXCU24O41; INTERPLAY;
D O I：
10.1088/0256-307X/27/8/087502
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Magnetic properties of spin-ladder compounds Sr-14(Cu1-yFey)(24)O-41 (0 <= y <= 0.05) are investigated in the temperature range from 10 to 300 K. The result reveals that all the samples exhibit magnetic crossover behavior in the paramagnetic range, and Fe3+ doping can efficiently increase the susceptibility due to the large moment of Fe3+. Both the observations are consistent with our previous investigation on transport behaviors, indicating the strong correlation between the magnetism and transport behaviors. The spin gap is evidenced in all the samples, and strengthens as Fe3+ doping level increases, which can be associated with the antiferromagnetic interaction between Fe3+ and Cu cations.
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页数：4
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