Magnetocaloric Effect and Transition Order in HoAl

• Authors: S. Baran , R. Duraj , A. Szytuła
• Languages of publication: EN

Abstracts

EN

Magnetic measurements of HoAl_{2} are reported. The compound crystallizes in the cubic MgCu_{2}-type crystal structure. HoAl_{2} exhibits two successive magnetic transitions: below T_{c} = 29 K a ferromagnetic order is formed while anomaly at T_{t} = 20 K is related to reorientation of magnetic moment. Near transition temperatures a magnetocaloric effect with magnetic entropy changes -ΔS_{m} equal to 6.3 J/(mol K) at T_{c} and 5.0 J/(mol K) at T_{t} for an external field μ_{0}H = 9 T is observed.

Keywords

EN

75.30.Cr; 75.30.Kz; 75.30.Sg

Discipline

• 75.30.Cr: Saturation moments and magnetic susceptibilities
• 75.30.Sg: Magnetocaloric effect, magnetic cooling(for cryogenics, see 07.20.Mc)
• 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 3
• Pages: 815-817

Dates

published

2015-03

received

2014-07-18

(unknown)

2014-11-18

(unknown)

2015-01-20

Contributors

author

S. Baran

• M. Smoluchowski Institute of Physics, Jagiellonian University, S. Łojasiewicza 11, PL-30348 Kraków, Poland

author

R. Duraj

• Institute of Physics, Technical University of Cracow, Podchorążych 1, PL-30-084 Kraków, Poland

author

A. Szytuła

• M. Smoluchowski Institute of Physics, Jagiellonian University, S. Łojasiewicza 11, PL-30348 Kraków, Poland

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Identifiers

DOI

10.12693/APhysPolA.127.815