# Continuous phase transition in mixed-valent manganite $Nd_{0.6}Pb_{0.4}MnO_{3}$

Sahana, M and Rossler, UK and Ghosh, N and Elizabeth, S and Bhat, HL and Eckert, D (2004) Continuous phase transition in mixed-valent manganite $Nd_{0.6}Pb_{0.4}MnO_{3}$. In: UNSPECIFIED.

 PDF 28.pdf - Published Version Restricted to Registered users only Download (182Kb) | Request a copy

## Abstract

The critical behaviour has been investigated in single crystalline $Nd_{0.6}Pb_{0.4}MnO_{3}$ near the paramagnetic to ferromagnetic transition temperature (TC) by static magnetic measurements. The values of TC and the critical exponents $\beta$, $\gamma$ and $\delta$ are estimated by analysing the data in the critical region. The exponent values are very close to those expected for 3D Heisenberg ferromagnets with short-range interactions. Specific heat measurements show a broad cusp at TC (i.e., exponent $\alpha<0$) being consistent with Heisenberg-like behaviour.

Item Type: Conference Paper copyright of this article belongs to Elsevier. Manganites;CMR;Critical properties. Division of Physical & Mathematical Sciences > Physics 18 Dec 2008 10:05 19 Sep 2010 04:53 http://eprints.iisc.ernet.in/id/eprint/16791