Crystallographic direction dependence of electrical-transport, magneto-transport, magnetic and thermal properties of La 0.7 Ca 0.3 MnO 3 single crystal
Source abstract
Abstract
Abstract The crystallographic direction dependence of the electrical-transport, magneto-transport, magnetic and thermal properties of La0.7Ca0.3MnO3 (LCMO) single crystal along c-axis and ab-plane are investigated. The resistivity data shows the metal-insulator transition (TMI) occurs at 211 K along c-axis and 185 K along ab-plane. The electrical resistivity results are investigated by various theoretical models below and above TMI. The dc-magnetization shows ferromagnetic-paramagnetic transition (TC) at 208 K along c-axis and at 190 K along ab-plane. Moreover, ac-susceptibility and specific heat measurements reveal the phase transition temperature are in close agreement with the resistivity and magnetization measurements. To implement sensor application and data storage capacity, the temperature coefficient of resistance (TCR) and magnetoresistance (MR) are found to ⿼17% K⿿1 and 98% respectively.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics · Rare-earth and actinide compounds
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
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