Please wait a minute...
Chin. Phys. B, 2008, Vol. 17(9): 3490-3494    DOI: 10.1088/1674-1056/17/9/058
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Effect of magnetic field on the spin-Peierls transition in single-crystal CuGeO

Wang Qing-Bo(王清波)a), Xu Xiang-Fan(徐象繁)a), Tao Qian(陶前)a), Wang Hong-Tao(王洪涛)b), and Xu Zhu-An(许祝安)a)
a Department of Physics, Zhejiang University, Hangzhou 310027, China; b Department of Physics and Information Science, Wenzhou University, Wenzhou 325027, China
Abstract  This paper reports that high quality CuGeO$_{3}$ single crystals were successfully grown by floating-zone technique and the magnetic property was studied. The temperature dependence of magnetic susceptibility below the spin-Peierls (SP) transition temperature ($T_{\rm sp})$ under magnetic fields applying along both the $a$- and $c$-axis direction can be fitted well by a model of noninteracting dimmers. The spin gap derived from the fitting is consistent with other reports. There is a very weak anisotropy in the fitting parameters for different directions, which should be expected from a SP system. A small upturn in susceptibility at low temperature due to paramagnetic impurities and/or defects can be observed. A suppression of the upturn by magnetic field is first discovered in this system and the possible origins for this suppression are discussed.
Keywords:  spin chain      spin--Peierls transition      spin dimmer      magnetic susceptibility  
Received:  03 January 2008      Revised:  05 February 2008      Accepted manuscript online: 
PACS:  75.30.Kz (Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))  
  75.20.Ck (Nonmetals)  
  75.30.Cr (Saturation moments and magnetic susceptibilities)  
  75.30.Gw (Magnetic anisotropy)  
  75.40.Cx (Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.))  
  81.10.Fq (Growth from melts; zone melting and refining)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10634030) and the Zhejiang Province Natural Science Foundation of China (Grant No Y605106).

Cite this article: 

Wang Qing-Bo(王清波), Xu Xiang-Fan(徐象繁), Tao Qian(陶前), Wang Hong-Tao(王洪涛), and Xu Zhu-An(许祝安) Effect of magnetic field on the spin-Peierls transition in single-crystal CuGeO 2008 Chin. Phys. B 17 3490

[1] Exact surface energy and elementary excitations of the XXX spin-1/2 chain with arbitrary non-diagonal boundary fields
Jia-Sheng Dong(董家生), Pengcheng Lu(路鹏程), Pei Sun(孙佩), Yi Qiao(乔艺), Junpeng Cao(曹俊鹏), Kun Hao(郝昆), and Wen-Li Yang(杨文力). Chin. Phys. B, 2023, 32(1): 017501.
[2] Low-temperature heat transport of the zigzag spin-chain compound SrEr2O4
Liguo Chu(褚利国), Shuangkui Guang(光双魁), Haidong Zhou(周海东), Hong Zhu(朱弘), and Xuefeng Sun(孙学峰). Chin. Phys. B, 2022, 31(8): 087505.
[3] Detection of multi-spin interaction of a quenched XY chain by the average work and the relative entropy
Xiu-Xing Zhang(张修兴), Fang-Jv Li(李芳菊), Kai Wang(王凯), Jing Xue(薛晶), Guang-Wen Huo(霍广文), Ai-Ping Fang(方爱平), and Hong-Rong Li(李宏荣). Chin. Phys. B, 2021, 30(9): 090504.
[4] Exact solution of an integrable quantum spin chain with competing interactions
Jian Wang(王健), Yi Qiao(乔艺), Junpeng Cao(曹俊鹏), and Wen-Li Yang(杨文力). Chin. Phys. B, 2021, 30(11): 117501.
[5] Role of the spin anisotropy of the interchain interaction in weakly coupled antiferromagnetic Heisenberg chains
Yuchen Fan(樊宇辰), Rong Yu(俞榕). Chin. Phys. B, 2020, 29(5): 057505.
[6] Applicability of coupling strength estimation for linear chains of restricted access
He Feng(冯赫), Tian-Min Yan(阎天民), Yuhai Jiang(江玉海). Chin. Phys. B, 2020, 29(3): 030305.
[7] Dynamical anisotropic magnetoelectric effects at ferroelectric/ferromagnetic insulator interfaces
Yaojin Li(李耀进), Vladimir Koval, Chenglong Jia(贾成龙). Chin. Phys. B, 2019, 28(9): 097501.
[8] Dyson-Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy
Yu-Ge Chen(陈宇戈), Yin-Xiang Li(李殷翔), Li-Jun Tian(田立君), Bin Chen(陈斌). Chin. Phys. B, 2018, 27(12): 127501.
[9] Exact solutions of an Ising spin chain with a spin-1 impurity
Xuchu Huang(黄旭初). Chin. Phys. B, 2017, 26(3): 037501.
[10] Quantum correlations dynamics of three-qubit states coupled to an XY spin chain:Role of coupling strengths
Shao-Ying Yin(尹少英), Qing-Xin Liu(刘庆欣), Jie Song(宋杰), Xue-Xin Xu(许学新), Ke-Ya Zhou(周可雅), Shu-Tian Liu(刘树田). Chin. Phys. B, 2017, 26(10): 100501.
[11] Optimal quantum parameter estimation of two-qutrit Heisenberg XY chain under decoherence
Hong-ying Yang(杨洪应), Qiang Zheng(郑强), Qi-jun Zhi(支启军). Chin. Phys. B, 2017, 26(1): 010601.
[12] Schwinger-boson approach to anisotropy ferrimagnetic chain with bond alternation
Li Yin-Xiang (李殷翔), Chen Bin (陈斌). Chin. Phys. B, 2015, 24(2): 027502.
[13] Non-Markovianity of the Heisenberg XY spin environment with Dzyaloshinskii-Moriya interaction
Xiang Jun-Dong (项俊东), Qin Li-Guo (秦立国), Tian Li-Jun (田立君). Chin. Phys. B, 2014, 23(11): 110305.
[14] Induced modification of geometric phase of a qubit coupled to an XY spin chain by the Dzyaloshinsky–Moriya interaction
Zhang Ai-Ping (张爱萍), Li Fu-Li (李福利). Chin. Phys. B, 2013, 22(3): 030308.
[15] Ferrimagnetism induced by asymmetrical ferromagnetic next-nearest-neighbour exchange interactions in an antiferromagnetic spin-1/2 zigzag chain
Wang Zhong-Long(王忠龙) and Fu Hua-Hua(傅华华) . Chin. Phys. B, 2011, 20(9): 097502.
No Suggested Reading articles found!