Magnetic form factor of Cu in La2CuO

作者: T. Freltoft , G. Shirane , S. Mitsuda , J. P. Remeika , A. S. Cooper

DOI: 10.1103/PHYSREVB.37.137

关键词:

摘要: The magnetic form factor for Cu in a single crystal of the antiferromagnet La/sub 2/CuO/sub 4/ has been measured using neutron diffraction. result is consistent with Calculation Freeman and Watson Cu/sup 2+/ at least up to Q = 4 A/sup -1/, although plateau between 1 3 -1/ suggests small contribution moment out-of-plane oxygen sites. For larger values drops faster than 2+/. sample ordered antiferromagnetically T/sub N/approx. =185 K an average ..mu.. 0.30 ..mu../sub B/ per atom.

参考文章(21)
J. G. Bednorz, K. A. M�ller, Possible high Tc superconductivity in the Ba-La-Cu-O system European Physical Journal B. ,vol. 64, pp. 189- 193 ,(1986) , 10.1007/BF01303701
PW Anderson, K Horigane, N Takeshita, CH Lee, The resonating valence bond state in La2CuO4 and superconductivity Science. ,vol. 235, pp. 1196- 1198 ,(1987) , 10.1126/SCIENCE.235.4793.1196
P. W. Anderson, G. Baskaran, Z. Zou, T. Hsu, Resonating–valence-bond theory of phase transitions and superconductivity inLa2CuO4-based compounds Physical Review Letters. ,vol. 58, pp. 2790- 2793 ,(1987) , 10.1103/PHYSREVLETT.58.2790
V. J. Emery, Theory of high-Tcsuperconductivity in oxides Physical Review Letters. ,vol. 58, pp. 2794- 2797 ,(1987) , 10.1103/PHYSREVLETT.58.2794
Yasumasa Hasegawa, Hidetoshi Fukuyama, Fermi Surface Instability of Quasi-Two-Dimensional Tight Binding Electrons : A Possible Phase Diagram of (La1-xMx)2CuO4 Japanese Journal of Applied Physics. ,vol. 26, pp. L322- L324 ,(1987) , 10.1143/JJAP.26.L322
P. A. Lee, N. Read, Why isTcof the oxide superconductors so low? Physical Review Letters. ,vol. 58, pp. 2691- 2694 ,(1987) , 10.1103/PHYSREVLETT.58.2691
Steven A. Kivelson, Daniel S. Rokhsar, James P. Sethna, Topology of the resonating valence-bond state: Solitons and high-T c superconductivity Physical Review B. ,vol. 35, pp. 8865- 8868 ,(1987) , 10.1103/PHYSREVB.35.8865
D. Vaknin, S. K. Sinha, D. E. Moncton, D. C. Johnston, J. M. Newsam, C. R. Safinya, H. E. King, Antiferromagnetism inLa2CuO4−y Physical Review Letters. ,vol. 58, pp. 2802- 2805 ,(1987) , 10.1103/PHYSREVLETT.58.2802
S. Mitsuda, G. Shirane, S. K. Sinha, D. C. Johnston, M. S. Alvarez, D. Vaknin, D. E. Moncton, Confirmation of antiferromagnetism in La2CuO Physical Review B. ,vol. 36, pp. 822- 825 ,(1987) , 10.1103/PHYSREVB.36.822
Bingxin X. Yang, Setsuo Mitsuda, Gen Shirane, Yasuo Yamaguchi, Hiroshi Yamauchi, Yasuhiko Syono, Search for Magnetic Scattering in La2CuO4 Journal of the Physical Society of Japan. ,vol. 56, pp. 2283- 2286 ,(1987) , 10.1143/JPSJ.56.2283