Naslov
Unusual magnetic field-induced phase transition in the mixed state of superconducting NbSe2

Autori
Sologubenko, A.V. ; Landau, I.L ; Ott, H.R. ; Bilušić, Ante ; Smontara, Ana ; Berger, H.

Izvornik
Physical Review Letters (0031-9007) 91 (2003), 19;

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
thermal conductivity; superconductivity; anisotropy; NbSe2

Sažetak
The thermal conductivity K in the basal plane of single-crystalline hexagonal NbSe2 has been measured as a function of magnetic field H , oriented both along and perpendicular to the c axis, at several temperatures below Tc . With the magnetic field in the basal plane and oriented parallel to the heat ux we observed, in fields well below Hc 2, an unexpected hysteretic behavior of K( H ) with all the generic features of a first order phase transition. The transition is not manifest in the K ( H ) curves, if H is still in the basal plane but oriented perpendicularly to the heat-x direction. The origin of the transition is not yet understood.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA