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Title: Lattice Location Effect of Ni{sub 50}Mn{sub 36}Sn{sub 14} Heusler Alloy

Abstract

The magnetic properties of Ni{sub 50}Mn{sub 36}Sn{sub 14} Heusler alloy with L{sub 21} structure (L{sub 21}-NiMnSn HA) are investigated by using the Kaneyoshi approach (KA) within the effective field theory. Mn atoms have two different magnetic properties, and Sn atoms also have two different magnetic properties, according to the lattice location. The L{sub 21}-NiMnSn HA and its components (Mn1, Mn2, Sn1, Sn2, and Ni) exhibit a second-order phase transition from the ferromagnetic phase to the paramagnetic phase at T{sub C} = 2.824. The magnetizations of the HA are obtained as Sn2 > Ni > Mn2 > L{sub 21}-NiMnSn HA > Sn1 > Mn1 at T < T{sub C}. We suggest that the magnetizations of the HA decrease from that of its core atom to its corner atoms. We refer to the different magnetization behavior of the Mn atoms and the Sn atoms of the HA as “lattice location effect (LLE)” because the magnetic difference of the Mn atoms and the Sn atoms of the HA results from their lattice location on the L{sub 21} structure. While the coercive fields are the same with each other, their remanence magnetizations are different. Our theoretical results of M(T) and M(H) of L{sub 21}-NiMnSnmore » HA are in quantitatively good agreement with some experimental results of NiMnSn alloys. Furthermore, the magnetization critical exponent is obtained. Its value is in good agreement with some experimental results and the mean field theory. This case indicates that the model exhibits a universal critical behavior.« less

Authors:
 [1]
  1. Dumlupınar University, Department of Electronics and Automation, Kutahya Vocational School of Technical Sciences (Turkey)
Publication Date:
OSTI Identifier:
22776977
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 4; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2017 Springer Science+Business Media, LLC; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; FIELD THEORIES; HEUSLER ALLOYS; HYSTERESIS; MAGNETIC PROPERTIES; MAGNETIZATION; MANGANESE; MEAN-FIELD THEORY; NICKEL; PARAMAGNETISM; PHASE TRANSFORMATIONS; TIN

Citation Formats

Duran, Ayşe. Lattice Location Effect of Ni{sub 50}Mn{sub 36}Sn{sub 14} Heusler Alloy. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4274-3.
Duran, Ayşe. Lattice Location Effect of Ni{sub 50}Mn{sub 36}Sn{sub 14} Heusler Alloy. United States. doi:10.1007/S10948-017-4274-3.
Duran, Ayşe. Sun . "Lattice Location Effect of Ni{sub 50}Mn{sub 36}Sn{sub 14} Heusler Alloy". United States. doi:10.1007/S10948-017-4274-3.
@article{osti_22776977,
title = {Lattice Location Effect of Ni{sub 50}Mn{sub 36}Sn{sub 14} Heusler Alloy},
author = {Duran, Ayşe},
abstractNote = {The magnetic properties of Ni{sub 50}Mn{sub 36}Sn{sub 14} Heusler alloy with L{sub 21} structure (L{sub 21}-NiMnSn HA) are investigated by using the Kaneyoshi approach (KA) within the effective field theory. Mn atoms have two different magnetic properties, and Sn atoms also have two different magnetic properties, according to the lattice location. The L{sub 21}-NiMnSn HA and its components (Mn1, Mn2, Sn1, Sn2, and Ni) exhibit a second-order phase transition from the ferromagnetic phase to the paramagnetic phase at T{sub C} = 2.824. The magnetizations of the HA are obtained as Sn2 > Ni > Mn2 > L{sub 21}-NiMnSn HA > Sn1 > Mn1 at T < T{sub C}. We suggest that the magnetizations of the HA decrease from that of its core atom to its corner atoms. We refer to the different magnetization behavior of the Mn atoms and the Sn atoms of the HA as “lattice location effect (LLE)” because the magnetic difference of the Mn atoms and the Sn atoms of the HA results from their lattice location on the L{sub 21} structure. While the coercive fields are the same with each other, their remanence magnetizations are different. Our theoretical results of M(T) and M(H) of L{sub 21}-NiMnSn HA are in quantitatively good agreement with some experimental results of NiMnSn alloys. Furthermore, the magnetization critical exponent is obtained. Its value is in good agreement with some experimental results and the mean field theory. This case indicates that the model exhibits a universal critical behavior.},
doi = {10.1007/S10948-017-4274-3},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 4,
volume = 31,
place = {United States},
year = {2018},
month = {4}
}