Pressure effect on large magnetoresistance in the lower charge-density-wave transition ofNbSe3

Autor:	Nao Takeshita, Kazuhiko Yamaya, Yoshitoshi Okajima, Nobuo Môri, Satoshi Tanda, Syuma Yasuzuka
Rok vydání:	1999
Předmět:	Physics Condensed matter physics Magnetoresistance Condensed Matter::Superconductivity Transition temperature High pressure Phase (matter) Condensed Matter::Strongly Correlated Electrons Fermi surface Charge density wave Magnetic field
Zdroj:	Physical Review B. 60:4406-4409
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.60.4406
Popis:	A large magnetoresistance appearing below the ${T}_{c2}\ensuremath{-}\mathrm{CDW}$ (charge-density wave) transition temperature in ${\mathrm{NbSe}}_{3}$ has been studied under various pressures including pressure above the critical pressure where the ${T}_{c2}\ensuremath{-}\mathrm{CDW}$ phase is suppressed totally. The large magnetoresistance appears as long as the ${T}_{c2}\ensuremath{-}\mathrm{CDW}$ phase exists. However, when the phase is suppressed totally by high pressure, neither large magnetoresistance nor any anomalies are induced by the magnetic field up to 12 T, suggesting that it is negative for the formation of a magnetic-field-induced CDW. The origin of the large magnetoresistance is discussed in terms of normal carriers on the ungapped Fermi surface created on the CDW transition compared with the pressure-induced magnetoresistance observed newly above ${T}_{c2}.$
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8b5a8510e6d969b37bb05890a61cec4d https://doi.org/10.1103/physrevb.60.4406 Zobrazit plný text záznamu