Geodesic
Low-temperature properties of quasione-dimensional magnetic systems
Teoretičeskaâ i matematičeskaâ fizika, Tome 70 (1987) no. 3, pp. 443-453 
M. E. Palistrant; I. V. Pédure. Low-temperature properties of quasione-dimensional magnetic systems. Teoretičeskaâ i matematičeskaâ fizika, Tome 70 (1987) no. 3, pp. 443-453. http://geodesic.mathdoc.fr/item/TMF_1987_70_3_a11/
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     author = {M. E. Palistrant and I. V. P\'edure},
     title = {Low-temperature properties of quasione-dimensional magnetic systems},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {443--453},
     year = {1987},
     volume = {70},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1987_70_3_a11/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

Detailed analysis of low-temperature properties of quasi-one-dimensional magnetic systems with a non-symmetrical half filling of the energetic band ($\mu\neq 0$, $\mu$ being the deviation from the half filling of the band) is carried out. It is shown that in such a system the coexistence of superconductivity (SC) and spin density wave (SDW) is possible. The behaviour of the system essentially depends on the theory parameters $\mu$ and $t=T_{c0}/T_{s0}$. Depending on the values of these parameters the following situations are possible: 1) SC and SDW coexist in a large temperature region $0 $(T_c\sim T_s)$; 2) SC and SDW coexist in a small temperature region near $T=0$; 3) the appearance of SC in $T=T_{c1}$ and its vanishing in $T=T_{c2}$, i.e. the reentrance of the system in the normal state with a diminishing temperature, is observed.

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