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Titolo:
Unusual magnetic quantum oscillations in organic metals at high magnetic fields
Autore:
Wosnitza, J; Wanka, S; Hagel, J; Qualls, JS; Brooks, JS; Harrison, H; Balthes, E; Schweitzer, D; Schlueter, JA; Geiser, U; Mohtashame, J; Winter, RW; Gard, GL;
Indirizzi:
Univ Karlsruhe, Inst Phys, D-76128 Karlsruhe, Germany Univ Karlsruhe Karlsruhe Germany D-76128 hys, D-76128 Karlsruhe, Germany Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA Florida State Univ Tallahassee FL USA 32306 ab, Tallahassee, FL 32306 USA Univ Calif Los Alamos Natl Lab, Natl High Magnet FIeld Lab, Los Alamos, NM87545 USA Univ Calif Los Alamos Natl Lab Los Alamos NM USA 87545 lamos, NM87545 USA Univ Stuttgart, Inst Phys 3, D-70550 Stuttgart, Germany Univ Stuttgart Stuttgart Germany D-70550 s 3, D-70550 Stuttgart, Germany Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA Argonne Natl Lab Argonne IL USA 60439 ab, Div Chem, Argonne, IL 60439 USA Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA Argonne Natl Lab Argonne IL USA 60439 Div Mat Sci, Argonne, IL 60439 USA Portland State Univ, Dept Chem, Portland, OR 97207 USA Portland State Univ Portland OR USA 97207 pt Chem, Portland, OR 97207 USA
Titolo Testata:
PHYSICA B
, volume: 294, anno: 2001,
pagine: 442 - 446
SICI:
0921-4526(200101)294:<442:UMQOIO>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
FERMI-LIQUID; KAPPA-(BEDT-TTF)(2)I-3; BEHAVIOR; ANION;
Keywords:
organic superconductors; Fermi surface; magnetotransport;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Wosnitza, J Univ Karlsruhe, Inst Phys, Engesserstr 7, D-76128 Karlsruhe, Germany Univ Karlsruhe Engesserstr 7 Karlsruhe Germany D-76128 ermany
Citazione:
J. Wosnitza et al., "Unusual magnetic quantum oscillations in organic metals at high magnetic fields", PHYSICA B, 294, 2001, pp. 442-446

Abstract

We report on Shubnikov-de Haas (SdH) and de Haas-van Alphen (dHvA) resultsfor the highly two-dimensional (2D) organic superconductors kappa-(ET)(2)I-3 (T-e = 3.5 K) and beta "-(ET)(2)SF5CH2CF2SO3 (T-c = 4.4 K). The SdH oscillations of both materials show an apparent deviation from the well-understood 2D dHvA signal at low temperatures and high magnetic fields. For kappa-(ET)(2)I-3, the mechanism leading to this behavior still needs to be clarified. For beta "-(ET)(2)SF5CH2CF2SO3, an anomalous steady background part ofthe magnetoresistance seems to account for the observed discrepancies. (C)2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 29/09/20 alle ore 07:39:38