Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2006-03-31
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 6 figures, corresponding author: C. Acha (acha@df.uba.ar)
Scientific paper
10.1103/PhysRevB.74.100401
We report on DC and pulsed electric field sensitivity of the resistance of mixed valent Mn oxide based La(5/8-y)Pr(y)Ca(3/8)MnO(3) (y = 0.4) single crystals as a function of temperature. The low temperature regime of the resistivity is highly current and voltage dependent. An irreversible transition from high (HR) to a low resistivity (LR) is obtained upon the increase of the electric field up to a temperature dependent critical value (V_c). The current-voltage characteristics in the LR regime as well as the lack of a variation in the magnetization response when V_c is reached indicate the formation of a non-single connected filamentary conducting path. The temperature dependence of V_c indicates the existence of a consolute point where the conducting and insulating phases produce a critical behavior as a consequence of their separation.
Acha C.
Cheong Sang-Wook
Garbarino Gaston
Koo Tae-Yeong
Levy Patrick
No associations
LandOfFree
Evidences of a consolute critical point in the Phase Separation regime of La(5/8-y)Pr(y)Ca(3/8)MnO(3) (y = 0.4) single crystals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Evidences of a consolute critical point in the Phase Separation regime of La(5/8-y)Pr(y)Ca(3/8)MnO(3) (y = 0.4) single crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidences of a consolute critical point in the Phase Separation regime of La(5/8-y)Pr(y)Ca(3/8)MnO(3) (y = 0.4) single crystals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-332216