Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Bertina Fisher"'
Autor:
Bertina Fisher, Larisa Patlagan
Publikováno v:
Materials, Vol 10, Iss 5, p 554 (2017)
VO2 is the prototype material for insulator–metal transition (IMT). Its transition at TIMT = 340 K is fast and consists of a large resistance jump (up to approximately five orders of magnitude), a large change in its optical properties in the visib
Externí odkaz:
https://doaj.org/article/9c6204c17a1948b6b567988bf65a4ffb
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
The prototypical metal-insulator transition in VO2 at 340 K is from a high-temperature rutile phase to a low-temperature monoclinic phase. The lower symmetry of the monoclinic structure removes the degeneracy of the two equivalent directions of the t
Publikováno v:
Scientific Reports
The prototypical metal-insulator transition in VO2 at 340 K is from a high-temperature rutile phase to a low-temperature monoclinic phase. The lower symmetry of the monoclinic structure removes the degeneracy of the two equivalent directions of the t
Publikováno v:
Applied Physics Letters. 119:221901
Publikováno v:
physica status solidi (a). 218:2000820
Publikováno v:
physica status solidi (b). 257:2000074
Publikováno v:
Applied Physics A. 120:435-442
We report on DC I–V characteristics of two crystalline V2O5 fibers measured at room temperature over a range of currents of more than four orders of magnitude. At low currents, the resistances of the samples decrease exponentially with voltage, a b
Publikováno v:
Journal of Magnetism and Magnetic Materials. 322:1239-1242
We report on the linear and nonlinear conductivity measurements on charge-ordered La 1− x Ca x MnO 3 ( x ≈0.5 and x =0.75). Upon cooling below room temperature, the onset of charge ordering— T co is marked by a peak in the logarithmic derivativ
Publikováno v:
Journal of Magnetism and Magnetic Materials. 316:e713-e716
We report on the thermopower ( S ( T )) of Ca 2 FeReO 6 (CFRO) up to 400 K. The resistivity ( ρ ( T )) measurements carried out on our samples reproduced with high accuracy previous results showing a negative d ρ /d T at all T . At very low- T , S
Publikováno v:
Current Applied Physics. 7:151-155
We report on a comparative study of S ( T ) for a series of transition-metal double-perovskites A 2 BB′O 6 (A – Ca, Sr, Ba, and B, B′ = transition metal ions), some of them known to have half-metallic ground states. For Sr 2 BB′O 6 with BB′