TY - JOUR

T1 - Broadening of the magnetic entropy change in La0.75Ca0.15Sr0.10MnO3

A1 - Krishnan Venkatesh,Radha

A1 - Kuhn,Luise Theil

A1 - Pryds,Nini

A1 - Bahl,Christian Robert Haffenden

A1 - Bohr,Jakob

AU - Krishnan Venkatesh,Radha

AU - Kuhn,Luise Theil

AU - Pryds,Nini

AU - Bahl,Christian Robert Haffenden

AU - Bohr,Jakob

PB - Elsevier S.A.

PY - 2012

Y1 - 2012

N2 - A broad table-like entropy change (ΔS) at room temperature has been observed in the ferromagnetic compound La0.75Ca0.15Sr0.10MnO3, which is analyzed in the concept of Landau theory and with critical exponent analysis obtained from the magnetization measurements. The change in entropy in La0.75Ca0.15Sr0.10MnO3 is discussed in the light of magnetoelastic coupling between the magnetization and the lattice distortion. Application aspects of this unusual broad magnetocaloric effect with relative cooling power of 107 J kg−1 in an applied magnetic field of 1.6 T with an operating temperature range of 93 K around the room temperature are also discussed.

AB - A broad table-like entropy change (ΔS) at room temperature has been observed in the ferromagnetic compound La0.75Ca0.15Sr0.10MnO3, which is analyzed in the concept of Landau theory and with critical exponent analysis obtained from the magnetization measurements. The change in entropy in La0.75Ca0.15Sr0.10MnO3 is discussed in the light of magnetoelastic coupling between the magnetization and the lattice distortion. Application aspects of this unusual broad magnetocaloric effect with relative cooling power of 107 J kg−1 in an applied magnetic field of 1.6 T with an operating temperature range of 93 K around the room temperature are also discussed.

KW - Manganites

KW - Magnetocaloric effect

KW - Magnetoelastic coupling

U2 - 10.1016/j.matchemphys.2011.11.030

DO - 10.1016/j.matchemphys.2011.11.030

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

SN - 0254-0584

IS - 1

VL - 32

SP - 192

EP - 195

ER -