Tricritical Point And The Doping Dependence Of The Order Of The Ferromagnetic Phase Transition Of La1-Xcaxmno3

PHYSICAL REVIEW LETTERS, no. 22 (2002): 227202-227202

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We report on the doping dependence of the order of the ferromagnetic metal to paramagnetic insulator phase transition in La1-xCaxMnO3. At x=0.33, magnetization and specific heat data show a first order transition, with an entropy change (2.3 J/mol K) accounted for by both volume expansion and the discontinuity of Msimilar to1.7mu(B) via t...更多

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