Low temperature magneto-transport properties of the I-AI6Ru quasicrystalline alloy

被引：1

作者：

De Medeiros, SN ^{[1
]}

Machado, FLA ^{[1
]}

Acioli, LH ^{[1
]}

机构：

[1] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

来源：

FERROELECTRICS | 2004年 / 305卷

关键词：

quasicrystal; superconductivity; magnetoresitance; phase diagram;

D O I：

10.1080/00150190490462748

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magneto-transport properties of the I-Al6Ru alloy were investigated in a broad range of temperature (T), applied magnetic field (H), and the amplitude of the electrical current. Type II superconductivity was observed below 1.66 K with the transition to the superconducting state taking place in a broad range of T (deltaT(C) = 0.86 K). An Abrikosov to a vortex-liquid phase line was also observed and the data were nicely fitted to a de Almeida-Thouless line, H-C(T) = H-C(0)[1 - T-C (H)/T-C(0)](phi)/2, yielding phi = 3, H-C(0) = 140 mT and T-C (0) = 0.83 K. The influence of the DOS on deltaT(C) is also addressed in this work.

引用

页码：193 / 198

页数：6

共 10 条

[1] NONUNIVERSAL CRITICAL-DYNAMICS ON THE FIBONACCI-CHAIN QUASICRYSTAL [J].

ASHRAFF, JA ;

STINCHCOMBE, RB .

PHYSICAL REVIEW B, 1989, 40 (04) :2278-2283

[2] Superconductivity of Ti-Zr-Ni alloys containing quasicrystals [J].

Azhazha, V ;

Grib, A ;

Khadzhay, G ;

Malikhin, S ;

Merisov, B ;

Pugachov, A .

PHYSICS LETTERS A, 2002, 303 (01) :87-90

[3] Self-similar magnetoresistance of Fibonacci ultrathin magnetic films [J].

Bezerra, CG ;

de Araújo, JM ;

Chesman, C ;

Albuquerque, EL .

PHYSICAL REVIEW B, 1999, 60 (13) :9264-9267

[4] Measurement of the density of states of a Al6Ru quasicrystalline alloy by ultrafast thermomodulation [J].

Ferreira, TAE ;

Acioli, LH ;

Machado, FLA .

SOLID STATE COMMUNICATIONS, 2001, 118 (01) :37-41

[5] Reentrant peak effect and melting of a flux line lattice in 2H-NbSe2 [J].

Ghosh, K ;

Ramakrishnan, S ;

Grover, AK ;

Menon, GI ;

Chandra, G ;

Rao, TVC ;

Ravikumar, G ;

Mishra, PK ;

Sahni, VC ;

Tomy, CV ;

Balakrishnan, G ;

Paul, DM ;

Bhattacharya, S .

PHYSICAL REVIEW LETTERS, 1996, 76 (24) :4600-4603

[6] SPECIFIC-HEAT OF AN ICOSAHEDRAL SUPERCONDUCTOR, MG3ZN3AL2 [J].

GRAEBNER, JE ;

CHEN, HS .

PHYSICAL REVIEW LETTERS, 1987, 58 (19) :1945-1948

[7] LOW-TEMPERATURE HEAT-CAPACITY AND MAGNETIC STUDY OF THE AL80MN20 ICOSAHEDRAL ALLOY [J].

MACHADO, FLA ;

CLARK, WG ;

AZEVEDO, LJ ;

YANG, DP ;

HINES, WA ;

BUDNICK, JI ;

QUAN, MX .

SOLID STATE COMMUNICATIONS, 1987, 61 (02) :145-149

[8] Fracton superconductivity in quasicrystals - a theoretical possibility suggested by experiment [J].

Moulopoulos, K ;

Cyrot-Lackmann, F .

PHYSICS LETTERS A, 1999, 261 (1-2) :119-124

[9] PHYSICS OF COMPLEX METALS - TEMPERATURE-DEPENDENT RESISTIVITIES IN IONIC SUPERCONDUCTORS AND STABLE QUASI-CRYSTALS [J].

PHILLIPS, JC .

PHYSICAL REVIEW B, 1992, 46 (13) :8542-8558

[10]

Schechtmann D., 1984, PHYS REV LETT, V53, P1951

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