TITLE

Giant magnetocaloric effect of MnAs[sub 1-x]Sb[sub x]

AUTHOR(S)
Wada, H.; Tanabe, Y.
PUB. DATE
November 2001
SOURCE
Applied Physics Letters;11/12/2001, Vol. 79 Issue 20, p3302
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A giant magnetocaloric effect was found in MnAs, which undergoes a first-order ferromagnetic to paramagnetic transition at 318 K. The magnetic entropy change caused by a magnetic field of 5 T is as large as 30 J/K kg at the maximum value, which exceeds that of conventional magnetic refrigerant materials by a factor of 2–4. The adiabatic temperature change reaches 13 K in a field change of 5 T. The substitution of 10% Sb for As reduces the thermal hysteresis and lowers the Curie temperature to 280 K, while the giant magnetocaloric properties are retained. © 2001 American Institute of Physics.
ACCESSION #
5549496

 

Related Articles

  • Magnetic behavior and magnetocaloric effect of neodymium-based amorphous alloy. Gorsse, S.; Orveillon, G.; Chevalier, B. // Journal of Applied Physics;Feb2008, Vol. 103 Issue 4, p044902 

    The Nd49Al13Ni38 amorphous alloy has been prepared by melt-spinning in the form of ribbons. Its magnetic properties have been investigated via superconducting quantum interference device magnetometry and its magnetic phase diagram was established. Hysteresis and temperature-dependent...

  • Effect of tensile stress on the 3D reversible and irreversible differential magnetic susceptibilities. Mao, Weihua; Atherton, David L. // Journal of Applied Physics;6/1/2001, Vol. 89 Issue 11, p7251 

    Magnetic hysteresis loops in three orthogonal directions are measured for a line pipe steel sample while the external magnetic field is applied in a direction perpendicular to the tensile stress direction. The total magnetization vector is calculated. This tends to the stress direction when...

  • Preisach analysis of two ferromagnetic perovskites: La[sub 0.95]Mg[sub 0.05]MnO[sub 3] and La[sub 0.5]Sr[sub 0.5]CoO[sub 3]. Zhao, J. H.; Song, T.; Kunkel, H. P.; Zhou, X. Z.; Williams, G.; Roshko, R. M. // Journal of Applied Physics;6/1/2001, Vol. 89 Issue 11, p7248 

    Measurements of the major hysteresis loop and of the temperature dependence of the field cooled and zero field cooled moment in applied fields less than the coercive field have been performed on two ferromagnetic perovskites La[sub 0.95]Mg[sub 0.05]MnO[sub 3] and La[sub 0.5]Sr[sub 0.5]CoO[sub...

  • New class of magnetic refrigerants based on the Cr(V) tetraperoxides. Cage, Brant; Dalal, Naresh // Journal of Applied Physics;5/1/2000, Vol. 87 Issue 9, p6031 

    We have recently investigated a series of compounds based on the Cr(V) tetraperoxides (general formulas M[sub 3]CrO[sub 8] where M=Li, Na, K, Rb, Cs) that exhibit novel magnetic and heat capacity properties. Chief among them is the promise of superior performance for magnetic refrigeration....

  • Magnetic properties of permalloy multilayers with alternating perpendicular anisotropies. Maicas, M.; Ranchal, R.; Aroca, C.; Sánchez, P.; López, E. // European Physical Journal B -- Condensed Matter;Apr2008, Vol. 62 Issue 3, p267 

    This work reports the magnetic properties of sputtered permalloy (Ni80Fe20) multilayers grown changing the anisotropy direction 90° in successive layers. Magnetic measurements show how the saturating field can be controlled by the thickness ratio between different anisotropy layers and how...

  • Preparation of (FexNi1-x)4N (0.5 ≤ x ≤ 0.8) compounds and evaluation of their magnetic and microwave absorbing properties. Pan, Haoshuai; Cheng, Xiaoqiang; Gong, Chunhong; Yu, Laigui; Zhang, Jingwei; Zhang, Zhijun // Journal of Applied Physics;Mar2013, Vol. 113 Issue 11, p113906 

    (FexNi1-x)4N (0.5 ≤ x ≤ 0.8) compounds were prepared by combining a simple reduction route with nitridation process under flowing ammonia gas at various temperatures. The microstructure as well as magnetic and microwave absorbing properties of as-prepared products was investigated....

  • Mn2PtIn: A tetragonal Heusler compound with exchange bias behavior. Nayak, Ajaya K.; Shekhar, Chandra; Winterlik, Jürgen; Gupta, Arunava; Felser, Claudia // Applied Physics Letters;4/9/2012, Vol. 100 Issue 15, p152404 

    The structural and magnetic properties of a tetragonal Heusler compound Mn2PtIn are reported. Low temperature (5 K) magnetic measurements of the material show a hard magnetic behavior with relatively low saturation magnetization of 1.6 μB/f.u., suggesting ferrimagnetic ordering in the system....

  • Modification of magnetic and magnetocaloric properties of Dy-Co-Al bulk metallic glass introduced by hydrogen. Fu, H.; Zou, M.; Singh, Niraj K. // Applied Physics Letters;12/27/2010, Vol. 97 Issue 26, p262509 

    Dy53.8Co17.3Al28.9 bulk metallic glass with a diameter of 3 mm exhibits spin-glass behavior and large coercivity and remanence. Hydrogenation of Dy53.8Co17.3Al28.9 suppresses the magnetic transition temperature and removes coercivity and remanence because of the expansion of average interatomic...

  • Enhanced differential magnetostrictive response in annealed Terfenol-D. Galloway, N.; Schulze, M.P. // Applied Physics Letters;8/9/1993, Vol. 63 Issue 6, p842 

    Investigates the magnetostrictive response in annealed Terfenol-D, a grain-oriented pseudobinary compound. Impact of heat treatment on the strain coefficient; Increase in maximum strain and hysteresis; Factors affecting the magnetostrictive strain of Terfenol-D.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics