Magnetic, magnetocaloric and magnetoresistance properties of Nd 7Pd3

Niraj K. Singh; Pramod Kumar; Z. Mao; Durga Paudyal; V. Neu; K. G. Suresh; V. K. Pecharsky; K. A. Gschneidner

doi:10.1088/0953-8984/21/45/456004

Magnetic, magnetocaloric and magnetoresistance properties of Nd ₇Pd₃

Niraj K. Singh, Pramod Kumar, Z. Mao, Durga Paudyal, V. Neu, K. G. Suresh, V. K. Pecharsky, K. A. Gschneidner

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Abstract

Magnetic, magnetocaloric and magnetoresistance properties of the intermetallic compound Nd₇Pd₃ have been investigated. It exhibits a first-order magnetic phase transition at its ferromagnetic ordering temperature (T_C = 34K). Just above the T_C, the magnetization isotherms exhibit a metamagnetic transition from the paramagnetic to a ferromagnetic state. In the immediate vicinity of T_C, a field change of only 10kOe leads to the giant magnetocaloric effect of 13 J mol ^-1 K^-1. For a field change of 50kOe a large magnetoresistance of ∼21% is observed near T_C. First-principles electronic structure calculations indicate that the first-order phase transition in Nd₇Pd₃ may originate from the peculiar nature of the density of states near the Fermi level.

Original language	English (US)
Article number	456004
Journal	Journal of Physics Condensed Matter
Volume	21
Issue number	45
DOIs	https://doi.org/10.1088/0953-8984/21/45/456004
State	Published - 2009

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics

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title = "Magnetic, magnetocaloric and magnetoresistance properties of Nd 7Pd3",

abstract = "Magnetic, magnetocaloric and magnetoresistance properties of the intermetallic compound Nd7Pd3 have been investigated. It exhibits a first-order magnetic phase transition at its ferromagnetic ordering temperature (TC = 34K). Just above the TC, the magnetization isotherms exhibit a metamagnetic transition from the paramagnetic to a ferromagnetic state. In the immediate vicinity of TC, a field change of only 10kOe leads to the giant magnetocaloric effect of 13 J mol -1 K-1. For a field change of 50kOe a large magnetoresistance of ∼21% is observed near TC. First-principles electronic structure calculations indicate that the first-order phase transition in Nd7Pd3 may originate from the peculiar nature of the density of states near the Fermi level.",

author = "Singh, {Niraj K.} and Pramod Kumar and Z. Mao and Durga Paudyal and V. Neu and Suresh, {K. G.} and Pecharsky, {V. K.} and Gschneidner, {K. A.}",

note = "Funding Information: This work was produced during the joint project between USATU (Ufa State Aviation Technical University) and UMPO (Ufa Engine Industrial Association) with title “Elaboration and industrial development of high-precision shaping coordinated technologies and superficial hardening of responsible details from Al-alloys with heightened constructional energy efficiency”, governed by the contract №40/10-30976/НЧ-НЧ-01-13-ХГ which was sponsored by the Ministry of Education and Science of the Russian Federation (contract №02.G25.31.0010 between UMPO and the Ministry of Education and Science of the Russian Federation) through the Resolution of the Russian Federation Government № 218 from April 9, 2010.",

year = "2009",

doi = "10.1088/0953-8984/21/45/456004",

language = "English (US)",

volume = "21",

journal = "Journal of Physics Condensed Matter",

issn = "0953-8984",

publisher = "IOP Publishing Ltd.",

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AU - Singh, Niraj K.

AU - Kumar, Pramod

AU - Mao, Z.

AU - Paudyal, Durga

AU - Neu, V.

AU - Suresh, K. G.

AU - Pecharsky, V. K.

AU - Gschneidner, K. A.

N1 - Funding Information: This work was produced during the joint project between USATU (Ufa State Aviation Technical University) and UMPO (Ufa Engine Industrial Association) with title “Elaboration and industrial development of high-precision shaping coordinated technologies and superficial hardening of responsible details from Al-alloys with heightened constructional energy efficiency”, governed by the contract №40/10-30976/НЧ-НЧ-01-13-ХГ which was sponsored by the Ministry of Education and Science of the Russian Federation (contract №02.G25.31.0010 between UMPO and the Ministry of Education and Science of the Russian Federation) through the Resolution of the Russian Federation Government № 218 from April 9, 2010.

PY - 2009

Y1 - 2009

N2 - Magnetic, magnetocaloric and magnetoresistance properties of the intermetallic compound Nd7Pd3 have been investigated. It exhibits a first-order magnetic phase transition at its ferromagnetic ordering temperature (TC = 34K). Just above the TC, the magnetization isotherms exhibit a metamagnetic transition from the paramagnetic to a ferromagnetic state. In the immediate vicinity of TC, a field change of only 10kOe leads to the giant magnetocaloric effect of 13 J mol -1 K-1. For a field change of 50kOe a large magnetoresistance of ∼21% is observed near TC. First-principles electronic structure calculations indicate that the first-order phase transition in Nd7Pd3 may originate from the peculiar nature of the density of states near the Fermi level.

AB - Magnetic, magnetocaloric and magnetoresistance properties of the intermetallic compound Nd7Pd3 have been investigated. It exhibits a first-order magnetic phase transition at its ferromagnetic ordering temperature (TC = 34K). Just above the TC, the magnetization isotherms exhibit a metamagnetic transition from the paramagnetic to a ferromagnetic state. In the immediate vicinity of TC, a field change of only 10kOe leads to the giant magnetocaloric effect of 13 J mol -1 K-1. For a field change of 50kOe a large magnetoresistance of ∼21% is observed near TC. First-principles electronic structure calculations indicate that the first-order phase transition in Nd7Pd3 may originate from the peculiar nature of the density of states near the Fermi level.

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Magnetic, magnetocaloric and magnetoresistance properties of Nd ₇Pd₃

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