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Titolo:
B-T-P phase diagram of alpha-(BEDT-TTF)(2)KHg(SCN)(4)
Autore:
Kartsovnik, MV; Andres, D; Biberacher, W; Christ, P; Steep, E; Balthes, E; Weiss, H; Muller, H; Kushch, ND;
Indirizzi:
Bayer Akad Wissensch, Walther Meissner Inst, D-85748 Garching, Germany Bayer Akad Wissensch Garching Germany D-85748 D-85748 Garching, Germany Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Russia Russian Acad Sci Chernogolovka Russia 142432 hernogolovka 142432, Russia European Synchrotron Radiat Facil, F-38043 Grenoble, France European Synchrotron Radiat Facil Grenoble France F-38043 enoble, France Max Planck Inst Festkorperforsch, High Field Magnet Lab, F-38042 Grenoble,France Max Planck Inst Festkorperforsch Grenoble France F-38042 Grenoble,France CNRS, F-38042 Grenoble, France CNRS Grenoble France F-38042CNRS, F-38042 Grenoble, France Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia Russian Acad Sci Chernogolovka Russia 142432 hernogolovka 142432, Russia
Titolo Testata:
SYNTHETIC METALS
fascicolo: 1-3, volume: 120, anno: 2001,
pagine: 687 - 690
SICI:
0379-6779(20010315)120:1-3<687:BPDOA>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUASI-2-DIMENSIONAL ORGANIC CONDUCTORS; MAGNETIC-FIELD; TEMPERATURE PHASE; DENSITY WAVES; PRESSURE; METAL; OSCILLATIONS; STATE; MAGNETORESISTANCE;
Keywords:
organic conductors based on radical cation salts; phase transitions; magnetic measurements; transport measurements; magnetotransport;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Kartsovnik, MV Bayer Akad Wissensch, Walther Meissner Inst, Walther Meissner Str 8, D-85748 Garching, Germany Bayer Akad Wissensch Walther Meissner Str 8 Garching Germany D-85748
Citazione:
M.V. Kartsovnik et al., "B-T-P phase diagram of alpha-(BEDT-TTF)(2)KHg(SCN)(4)", SYNTH METAL, 120(1-3), 2001, pp. 687-690

Abstract

We present detailed studies of the B-T-P phase diagram of alpha-(BEDT-TTF)(2)KHg(SCN)(4) by means of magnetic torque and magnetoresistance measurements. The phase diagram for magnetic field oriented almost perpendicular to the highly conducting layers closely resembles that expected for a charge-density-wave (CDW) system with an imperfectly nested Fermi surface. The influence of pressure can be readily understood as deteriorating the nesting conditions and thus enhancing the role of the orbital effect of magnetic field. At field strongly tilted from the normal to the layers, both the torque and magnetoresistance display a number of irreversible features that may be associated with a series of first-order phase transitions. This behaviour is not understood within the existing CDW theories.

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Documento generato il 24/09/20 alle ore 21:03:30