Electronic structures of Sr14-xCaxCu24O41

被引：47

作者：

Arai, M ^{[1
]}

Tsunetsugu, H ^{[1
]}

机构：

[1] UNIV TSUKUBA, INST PHYS APPL, TSUKUBA, IBARAKI 305, JAPAN

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.56.R4305

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structures of Sr14-xCaxCu24O41 are calculated within the local-density approximation. Around the Fermi energy there exist quasi-one-dimensional bands originated from the ladder and chain layers. The nearest-neighbor interladder hoppings are estimated to be 5-20 % of the intraladder ones. Possible effects of Ca substitution on electronic structures and charge distribution are also discussed.

引用

页码：R4305 / R4308

页数：4

共 19 条

[1] LINEAR METHODS IN BAND THEORY [J].

ANDERSEN, OK .

PHYSICAL REVIEW B, 1975, 12 (08) :3060-3083

[2] SUPERCONDUCTIVITY IN LADDERS AND COUPLED PLANES [J].

DAGOTTO, E ;

RIERA, J ;

SCALAPINO, D .

PHYSICAL REVIEW B, 1992, 45 (10) :5744-5745

[3] CALCULATED ELECTRONIC-STRUCTURE OF THE SANDWICH D(1) METALS LAI2 AND CEI2 - APPLICATION OF NEW LMTO TECHNIQUES [J].

JEPSEN, O ;

ANDERSEN, OK .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1995, 97 (01) :35-47

[4] THE DENSITY FUNCTIONAL FORMALISM, ITS APPLICATIONS AND PROSPECTS [J].

JONES, RO ;

GUNNARSSON, O .

REVIEWS OF MODERN PHYSICS, 1989, 61 (03) :689-746

[5] STRUCTURE OF THE ALKALINE-EARTH METAL OXOCUPRATE M10CU17O29 [J].

KATO, K ;

TAKAYAMAMUROMACHI, E ;

KOSUDA, K ;

UCHIDA, Y .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1988, 44 :1881-1884

[6] STRUCTURE REFINEMENT OF COMPOSITE CRYSTALS IN MULTIDIMENSIONAL SPACE [J].

KATO, K .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1990, 46 :39-44

[7] Metal-insulator transition and spin gap in the spin-1/2 ladder system Sr(14-x)A(x)Cu(24)O(41) (A=Ba and Ca) [J].

Kato, M ;

Shiota, K ;

Koike, Y .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1996, 258 (3-4) :284-292

[8] THE INCOMMENSURATE STRUCTURE OF (SR14-XCAX)CU24O41 (0 LESS-THAN X APPROXIMATELY 8) A SUPERCONDUCTOR BY-PRODUCT [J].

MCCARRON, EM ;

SUBRAMANIAN, MA ;

CALABRESE, JC ;

HARLOW, RL .

MATERIALS RESEARCH BULLETIN, 1988, 23 (09) :1355-1365

[9] Electronic states of doped spin ladders (Sr,Ca)(14)Cu24O41 [J].

Mizuno, Y ;

Tohyama, T ;

Maekawa, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1997, 66 (04) :937-940

[10] Effect of Ca substitution and pressure on the transport and magnetic properties of Sr14Cu24O41 with doped two-leg Cu-O ladders [J].

Motoyama, N ;

Osafune, T ;

Kakeshita, T ;

Eisaki, H ;

Uchida, S .

PHYSICAL REVIEW B, 1997, 55 (06) :R3386-R3389

← 1 2 →