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@ARTICLE{
author={ÕÅĀŲ;},
title={Critical phenomenon in the itinerant ferromagnet Cr11Ge19 studied by scaling of the magnetic entropy change},
keywords={magnetic entropy change; critical phenomenon; itinerant ferromagnetism; single crystal; scaling},
abstracts={Critical phenomenon of the noncentrosymmetric Cr11Ge19, which exhibits an itinerant ferromagnetic
ground state, is investigated by scaling of the magnetic entropy change [ĶĪSM(T;H)]. It is
found that parameters FWHM (the full width at half maximum), ?ĶĪSmax
M (the maximum of the
magnetic entropy change), and RCP (the relative cooling power) of ĶĪSM(T) are governed by the
power law of critical exponents. With the critical exponents, ĶĪSM(T;H) curves are scaled into a
universal curve independent of temperature and field, which suggests that the magnetic transition
is of a second order type. The universal collapse of ĶĪSM(T;H) indicates that the critical behavior
of Cr11Ge19 can be well described by the scaling laws for the critical phenomenon. Moreover, the
ĶĪSM follows the power law of Hn with n(T;H) = dlnjĶĪSMj=dln(H). The temperature dependence
of n values reach minimum at 71.5 K. Based on the magnetic specific change ĶĪCp(T;H),
the actual magnetic transition temperature is strictly determined as TC = 71:3 0:2 K for the
single crystal Cr11Ge19.},
timestamp={2017-11-29},
}