Pulsed-magnetic-field measurements of Hall potential oscillations in {alpha}-(BEDT-TTF){sub 2}TlHg(SCN){sub 4} within the quantum Hall regime

Journal Article · Thu Apr 01 04:00:00 EST 1999 · Physical Review, B: Condensed Matter

OSTI ID:347060

Honold, M M ^[1]; Harrison, N ^[2]; Singleton, J; Nam, M; Blundell, S J ^[1]; Mielke, C H ^[2]; Kartsovnik, M V ^[3]; Kushch, N D ^[4]

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1. Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU (United Kingdom)
2. National High Magnetic Field Laboratory (NHMFL), LANL, MS-E536, Los Alamos, New Mexico 87545 (United States)
3. Walther-Meissner-Institut, Walther-Meissner-Strasse 8, D-85748 Garching (Germany)
4. Institute of Chemical Physics Research, Russian Academy of Science, Chernogolovka, 142432 (Russian Federation)

Using a variant of the Corbino geometry in pulsed magnetic fields of up to 60 T, we have made direct measurements of the Hall potential in {alpha}-(BEDT-TTF){sub 2}TlHg(SCN){sub 4} within the quantum Hall regime. This method enables the in-plane components of the resistivity tensor, which are normally very difficult to measure, to be investigated and the nonlinear behavior of the sample{close_quote}s I-V characteristics to be studied. It is found that an increasing probability of magnetic breakdown at higher fields leads to a degradation of the quantum Hall effect. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 347060
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 16 Vol. 59; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BEDT-TTF
ELECTRICAL PROPERTIES
HALL EFFECT
MAGNETIC FIELDS
MERCURY COMPOUNDS
ORGANIC COMPOUNDS
THALLIUM COMPOUNDS