CHARGE SUSCEPTIBILITY AND CHARGE CORRELATION-FUNCTION IN THE D-P MODEL

被引:9
作者
KOBAYASHI, A [1 ]
AZAMI, M [1 ]
ONO, Y [1 ]
MATSUURA, T [1 ]
KURODA, Y [1 ]
MIURA, K [1 ]
机构
[1] KYUSHU INST TECHNOL,DEPT MECH SYST ENGN,FUKUOKA 820,JAPAN
来源
PHYSICA C | 1995年 / 250卷 / 3-4期
关键词
D O I
10.1016/0921-4534(95)00360-6
中图分类号
O59 [应用物理学];
学科分类号
摘要
The properties of the charge fluctuation are investigated in the d-p model with the repulsion U-pd between holes on the nearest-neighbor Cu and O sites and the infinite on-site repulsion U-d at the Cu site. We calculate the charge susceptibility chi(c)(q, i omega(n)) and the charge correlation function S-c(q)=T Sigma(omega n)chi(c)(q, i omega(n)). It is found that S-c(q) has a peak at the Gamma point and a maximum in a ring around the Gamma point. The former is due to T chi(c)(q, 0). Its intensity is proportional to temperature T and strongly enhanced by U-pd. The latter is due to T Sigma(omega n not equal 0)chi(c)(q, i omega(n)) and shows a weak T and U-pd dependence. The intensity of the diffuse X-ray scattering on taking the charge fluctuation into account is also calculated. The result is consistent with the experiments in La2-deltaSrdeltaCuO4.
引用
收藏
页码:307 / 319
页数:13
相关论文
共 33 条
[11]  
JICHU H, 1990, J PHYS SOC JPN, V59, P2822
[12]   PAIRING INSTABILITIES OF THE EXTENDED HUBBARD-MODEL FOR CU-O-BASED SUPERCONDUCTORS [J].
LITTLEWOOD, PB ;
VARMA, CM ;
ABRAHAMS, E .
PHYSICAL REVIEW LETTERS, 1989, 63 (23) :2602-2605
[13]   COLLECTIVE MODES AND SUPERCONDUCTIVITY IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS [J].
LITTLEWOOD, PB .
PHYSICAL REVIEW B, 1990, 42 (16) :10075-10089
[14]   IMPURITY-STATE-LIKE NATURE OF FERMI-LIQUID STATES IN BI2SR2CACU2O8 OBSERVED BY PHOTOEMISSION AND X-RAY ABSORPTION [J].
MATSUYAMA, H ;
TAKAHASHI, T ;
KATAYAMAYOSHIDA, H ;
KASHIWAKURA, T ;
OKABE, Y ;
SATO, S ;
KOSUGI, N ;
YAGISHITA, A ;
TANAKA, K ;
FUJIMOTO, H ;
INOKUCHI, H .
PHYSICA C, 1989, 160 (5-6) :567-570
[15]   QUASI-PARTICLE INTERACTION IN STRONGLY CORRELATED SYSTEMS - DEGENERATE ANDERSON LATTICE [J].
MIURA, K ;
MATSUURA, T ;
KURODA, Y .
PHYSICA C, 1991, 179 (4-6) :411-429
[16]   ASPECT OF SPIN-CHARGE SEPARATION DUE TO ANTIFERROMAGNETIC SPIN FLUCTUATIONS IN TECHNICALLY NESTED 2D METALS [J].
MIYAKE, K ;
NARIKIYO, O .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (06) :2042-2046
[17]  
MONTHOUX P, PHYS REV LETT, V72, P1874
[18]  
MONTHOUX P, 1933, PHYS REV B, V47, P6069
[19]   SPIN FLUCTUATION SPECTRA AND HIGH-TEMPERATURE SUPERCONDUCTIVITY [J].
MORIYA, T ;
UEDA, K .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (05) :1871-1880
[20]   SADDLE-POINT PAIRING - AN ELECTRONIC MECHANISM FOR SUPERCONDUCTIVITY [J].
NEWNS, DM ;
KRISHNAMURTHY, HR ;
PATTNAIK, PC ;
TSUEI, CC ;
KANE, CL .
PHYSICAL REVIEW LETTERS, 1992, 69 (08) :1264-1267