Supercooling transition in phase separated manganite thin films: An electrical transport study | Zendy

Sandeep Singh | Zendy; Pawan Kumar | Zendy; P. K. Siwach | Zendy; Pawan K. Tyagi | Zendy; H. K. Singh | Zendy

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Supercooling transition in phase separated manganite thin films: An electrical transport study

Author(s) -

Sandeep Singh,

Pawan Kumar,

P. K. Siwach,

Pawan K. Tyagi,

H. K. Singh

Publication year - 2014

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4880725

Subject(s) - supercooling , manganite , superheating , condensed matter physics , electrical resistivity and conductivity , materials science , ferromagnetism , hysteresis , phase transition , transition temperature , phase (matter) , thermodynamics , metal–insulator transition , antiferromagnetism , chemistry , metal , superconductivity , metallurgy , physics , organic chemistry , quantum mechanics

The impact of variation in the relative fractions of the ferromagnetic metallic and antiferromagnetic/charge ordered insulator phases on the supercooling/superheating transition in strongly phase separated system, La5/8−yPryCa3/8MnO3 (y ≈ 0.4), has been studied employing magnetotransport measurements. Our study clearly shows that the supercooling transition temperature is non-unique and strongly depends on the magneto-thermodynamic path through which the low temperature state is accessed. In contrast, the superheating transition temperature remains constant. The thermo-magnetic hysteresis, the separation of the two transitions and the associated resistivity, all are functions of the relative fraction of the coexisting phases.

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