Pressure effect on electrical resistivity of Y1-xGdxCo2
Creators
- 1. Faculty of Science, University of the Ryukyus, Nishihara, Okinawa 903-0213 (Japan)
- 2. Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581 (Japan)
- 3. A. F. Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg 194021 (Russian Federation)
Description
Electrical resistivity of Y1-xGdxCo2 alloy system has been measured at temperatures from 2 to 300K in magnetic field up to 15T and under pressure up to 10GPa. The compounds with the composition near to phase boundary between paramagnetic and ferromagnetic ground state (xc∼0.12) show strong enhancement of electrical resistivity at low temperatures. Large positive magnetoresistance was observed in ferromagnetic alloys in composition range 0.15<x<0.3. The anomalous magnetoresistance as well as the composition dependence of the low-temperature resistivity were explained by an interplay of metamagnetic instability of Co 3d itinerant electrons and structural disorder within rare-earth sublattice. The pressure effect on electrical resistivity for Y1-xGdxCo2 at low temperatures is in agreement with the variation of magnetoresistance with the composition
Additional details
Identifiers
- DOI
- 10.1016/j.physb.2006.01.001;
- PII
- S0921-4526(06)00070-6;
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 378-380
- Journal Page Range
- p. 169-170
- ISSN
- 0921-4526
- CODEN
- PHYBE3
Conference
- Title
- International conference on strongly correlated electron systems
- Acronym
- SCES 2005
- Dates
- 26-30 Jul 2005
- Place
- Vienna (Austria)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38066338
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COBALT; CONCENTRATION RATIO; ELECTRONS; FERROMAGNETISM; GADOLINIUM; GROUND STATES; INTERMETALLIC COMPOUNDS; MAGNETIC FIELDS; MAGNETORESISTANCE; PARAMAGNETISM; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; TEMPERATURE DEPENDENCE; TERNARY ALLOY SYSTEMS; YTTRIUM
- Descriptors DEC
- ALLOY SYSTEMS; ALLOYS; DIMENSIONLESS NUMBERS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; ENERGY LEVELS; FERMIONS; LEPTONS; MAGNETISM; METALS; PHYSICAL PROPERTIES; PRESSURE RANGE; RARE EARTHS; TRANSITION ELEMENTS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.