Hostname: page-component-7b7567c8c-7pwfn Total loading time: 0 Render date: 2026-11-14T22:23:37.808Z Has data issue: false hasContentIssue false
  • English
  • Français

Neutron diffraction study of the magnetic refrigerant Mn1.1Fe0.9P0.76Ge0.24

Published online by Cambridge University Press:  06 March 2012

L. J. Liu,
D. M. Liu,
Q. Z. Huang,
T. L. Zhang,
L. Zhang,
M. Yue,
J. W. Lynn and
J. X. Zhang
L. J. Liu
Affiliation:
Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
D. M. Liu*
Affiliation:
Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
Q. Z. Huang
Affiliation:
NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
T. L. Zhang
Affiliation:
Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
L. Zhang
Affiliation:
Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
M. Yue
Affiliation:
College of Material Science and Engineering, Beijing University of Technology, Beijing 100124, China
J. W. Lynn
Affiliation:
NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
J. X. Zhang
Affiliation:
College of Material Science and Engineering, Beijing University of Technology, Beijing 100124, China
*
a)Author to whom correspondence should be addressed. Electronic mail: dmliu@bjut.edu.cn
Get access

Abstract

Polycrystalline Mn1.1Fe0.9P0.76Ge0.24 was prepared by mechanical alloying and spark plasma sintering. Neutron diffraction was used to determine the structure of the title compound, and its nuclear and magnetic structures were refined using the Rietveld method. It is found that temperature and magnetic field can induce phase transition between the paramagnetic and the ferromagnetic phases in the material, and the paramagnetic and ferromagnetic phases have very distinct crystal structures and different Ge contents.

Keywords

neutron diffractioncrystal structuremagnetic refrigerant

Information

Type
Technical Articles
Information
Powder Diffraction , Volume 25 , Supplement S1 , September 2010, pp. S25 - S27
Copyright
Copyright © Cambridge University Press 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

Brück, E., Tegus, O., Zhang, L., Li, X., de Boer, W. F. R., and Buschow, K. H. J. (2004). “Magnetic refrigeration near room temperature with Fe2P-based compounds,” J. Alloys Compd.JALCEU 383, 32–36.10.1016/j.jallcom.2004.04.042CrossRefGoogle Scholar
Cam Thanh, D. T., Brück, E., Tegus, O., Klaasse, J. C. P., Gortenmulder, T. J., and Buschow, K. H. J. (2006). “Magnetocaloric effect in MnFe(P,Si,Ge) compounds,” J. Appl. Phys.JAPIAU 99, 08Q107(1-3).10.1063/1.2170589CrossRefGoogle Scholar
Dagula, W., Tegus, O., Li, X. W., Song, L., Brück, E., Cam Thanh, D. T., de Boer, F. R. and Buschow, K. H. J. (2006). “Magnetic properties and magnetic-entropy change of MnFeP0.5As0.5−xSix (x=0–0.3) compounds,” J. Appl. Phys.JAPIAU 99, 08Q105(1-3).10.1063/1.2158969CrossRefGoogle Scholar
Liu, D. M., Yue, M., Zhang, J. X., McQueen, T. M., Lynn, J. W., Wang, X. L., Chen, Y., Li, J., Cava, R. J., Liu, X., Altounian, Z., and Huang, Q. (2009). “Origin and tuning of the magnetocaloric effect for the magnetic refrigerant Mn1.1Fe0.9(P0.8Ge0.2),” Phys. Rev. BPLRBAQ 79, 014435(1-7).10.1103/PhysRevB.79.014435Google Scholar
Ou, Z. Q., Wang, G., Lin, S., Tegus, O., Brück, E., and Buschow, K. H. J. (2006). “Magnetic properties and magnetocaloric effects in Mn1.2Fe0.8P1−xGex compounds,” J. Phys.: Condens. MatterJCOMEL 18, 11577–11584.10.1088/0953-8984/18/50/012Google Scholar
Tegus, O., Brück, E., Buschow, K. H. J., and de Boer, F. R. (2002). “Transition-metal-based magnetic refrigerants for temperature applications,” Nature (London)NATUAS 415, 150–152.10.1038/415150aCrossRefGoogle ScholarPubMed
Tegus, O., Fuquan, B., Dagula, W., Zhang, W. L., Brück, E., Si, P. Z., de Boer, F. R., and Buschow, K. H. J. (2005). “Magnetic-entropy change in Mn1.1Fe0.9P0.7As0.3−xGex,” J. Alloys Compd.JALCEU 396, 6–9.10.1016/j.jallcom.2004.12.001CrossRefGoogle Scholar
Yue, M., Li, Z. Q., Wang, X. L., Liu, D. M., Zhang, J. X., and Liu, X. B. (2009). “Crystal structure and magnetic transition of MnFePGe compound prepared by spark plasma sintering,” J. Appl. Phys.JAPIAU 105, 07A915(1-3).10.1063/1.3056157CrossRefGoogle Scholar