Arulraj, Anthony ; Biswas, Amlan ; Raychaudhuri, A. K. ; Rao, C. N. R. ; Woodward, P. M. ; Vogt, T. ; Cox, D. E. ; Cheetham, A. K. (1998) Reentrant transition from an incipient charge-ordered state to a ferromagnetic metallic state in a rare-earth manganate Physical Review B: Condensed Matter and Materials Physics, 57 (14). R8115-R8118. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v57/i14/pR8115_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.57.R8115
Abstract
A reentrant transition from an incipient charge-ordered (CO) state to a charge-delocalized ferromagnetic (CDFM) state has been established in the manganate Nd0.25La0.25Ca0.5MnO3, in which the average A-site ionic radius is 1.19 Å. The reentrant CDFM phase is associated with a first-order phase transition that reduces the orthorhombic distortion of the lattice, in contrast to the CO transition in other manganates where the orthorhombically distorted CO state is stabilized at low temperatures. At the CO-CDFM transition, there is a collapse of the charge-ordering gap as measured by vacuum tunneling spectroscopy.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 39935 |
| Deposited On: | 20 May 2011 07:50 |
| Last Modified: | 05 Jul 2012 04:01 |
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