E VERSUS K RELATIONS AND MANY-BODY EFFECTS IN THE MODEL INSULATING COPPER-OXIDE SR2CUO2CL2

被引：475

作者：

WELLS, BO ^{[1
]}

SHEN, ZX ^{[1
]}

MATSUURA, A ^{[1
]}

KING, DM ^{[1
]}

KASTNER, MA ^{[1
]}

GREVEN, M ^{[1
]}

BIRGENEAU, RJ ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT APPL PHYS,STANFORD,CA 94305

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.74.964

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report angle resolved photoemission measurements on Sr2CuO2Cl2, an insulating layered copper oxide. We find that the overall width of the highest occupied band and the position of the band maximum at (π2, π2) agree with predictions of the t-J model and other calculations based on the Hubbard model. However, in many regions of the Brillouin zone, the shape of the band differs from these predictions. A comparison of our data with spectra previously reported on metallic samples leads to new suggestions for the phenomenology of doping. © 1995 The American Physical Society.

引用

页码：964 / 967

页数：4

共 23 条

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[22] CU-O NETWORK DEPENDENCE OF OPTICAL CHARGE-TRANSFER GAPS AND SPIN-PAIR EXCITATIONS IN SINGLE-CUO2-LAYER COMPOUNDS
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[23] ELECTRONIC-STRUCTURE OF BI2SR2CA1-XYXCU2O8+DELTA - CU 2P X-RAY-PHOTOELECTRON SPECTRA AND OCCUPIED AND UNOCCUPIED LOW-ENERGY STATES
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