Hall effect and thermoelectric power in UNiGa

Journal Article · Sun Dec 01 04:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.15330· OSTI ID:401146

Kobayashi, Y; Aoki, Y; Sugawara, H; Sato, H ^[1]; Sechovsky, V; Havela, L ^[2]; Prokes, K; Mihalik, M; Menovsky, A ^[3]

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1. Department of Physics, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-03 (Japan)
2. Department of Metal Physics, Charles University, CZ-12 116 Prague 2, The Czech Republic (Japan)
3. Van der Waals-Zeeman Institute, University of Amsterdam, NL-1018 XE Amsterdam (The Netherlands)

We report on simultaneous measurements of the magnetization, magnetoresistance, Hall effect and thermoelectric power on single-crystal UNiGa to investigate the origin of giant magnetoresistance phenomena. The normal part of Hall coefficient is markedly different above and below the metamagnetic transition at low temperatures. The thermoelectric power at 4.2 K changes its sign between the two magnetic states. These results imply that the strong resistivity variations are intimately connected with a reconstruction of the Fermi surface across the transition. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 401146
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 21 Vol. 54; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRONIC STRUCTURE
GALLIUM COMPOUNDS
HALL EFFECT
INTERMETALLIC COMPOUNDS
MAGNETIZATION
NICKEL COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SEEBECK EFFECT
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0-13 K
TEMPERATURE RANGE 13-65 K
URANIUM COMPOUNDS