Competition of antiferromagnetism and superconductivity in Cr-Ru alloys

被引：12

作者：

Chatani, K

Endoh, Y

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[2] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2003年 / 72卷 / 01期

关键词：

Cr-Ru alloy; spin density wave; superconductivity; phase transition;

D O I：

10.1143/JPSJ.72.17

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report experimental results from systematic studies on the interplay between the antiferromagnetic spin density wave and the superconductivity in Cr1-xRux alloys. Unlike previous reports, the two phases never coexist and the phase transition as the function of x appears to be of the first order. This clean evidence leads to a conclusion that the antiferromagnetic SDW is stabilized by the excitonic phase formation competing with the Bose condensation of the superconductivity in Cr1-xRux alloys.

引用

页码：17 / 20

页数：4

共 12 条

[1] POSSIBLE HIGH-TC SUPERCONDUCTIVITY IN THE BA-LA-CU-O SYSTEM [J].

BEDNORZ, JG ;

MULLER, KA .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 64 (02) :189-193

[2] TEMPERATURE-DEPENDENCE OF HALL-EFFECT AND RESISTIVITY IN SINGLE-CRYSTALS OF MO AND NB AND OF MO-RICH-RE, MO-NB, AND NB-RICH-ZR ALLOYS [J].

COX, WR ;

HAYES, DJ ;

BROTZEN, FR .

PHYSICAL REVIEW B, 1973, 7 (08) :3580-3588

[3] SPIN-DENSITY-WAVE ANTIFERROMAGNETISM IN CHROMIUM-ALLOYS [J].

FAWCETT, E ;

ALBERTS, HL ;

GALKIN, VY ;

NOAKES, DR ;

YAKHMI, JV .

REVIEWS OF MODERN PHYSICS, 1994, 66 (01) :25-127

[4] ITINERANT ANTIFERROMAGNETISM [J].

FEDDERS, PA ;

MARTIN, PC .

PHYSICAL REVIEW, 1966, 143 (01) :245-&

[5] DESTRUCTION OF SUPERCONDUCTIVITY AT ONSET OF LONG-RANGE MAGNETIC ORDER IN COMPOUND ERRH4B4 [J].

FERTIG, WA ;

JOHNSTON, DC ;

DELONG, LE ;

MCCALLUM, RW ;

MAPLE, MB .

PHYSICAL REVIEW LETTERS, 1977, 38 (17) :987-990

[6] THEORY OF COEXISTENCE BETWEEN ITINERANT-ELECTRON ANTIFERROMAGNETISM AND SUPERCONDUCTIVITY [J].

GULACSI, M ;

GULACSI, Z .

PHYSICAL REVIEW B, 1986, 33 (09) :6147-6156

[7] Magnetic, transport, and optical properties of monolayer copper oxides [J].

Kastner, MA ;

Birgeneau, RJ ;

Shirane, G ;

Endoh, Y .

REVIEWS OF MODERN PHYSICS, 1998, 70 (03) :897-928

[8] ELECTRONIC STRUCTURE OF CHROMIUM GROUP METALS [J].

LOMER, WM .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1962, 80 (514) :489-&

[9]

MUHEIM J, 1964, PHYS KONDENS MATER, V2, P377

[10] SUPERCONDUCTIVITY AND MAGNETISM OF BCC CR-RU ALLOYS [J].

NISHIHARA, Y ;

YAMAGUCHI, Y ;

TOKUMOTO, M ;

TAKEDA, K ;

FUKAMICHI, K .

PHYSICAL REVIEW B, 1986, 34 (05) :3446-3449

← 1 2 →