Pr1.33Pt4Ga10: Superstructure and magnetism

Sau Doan Nguyen; Kevin Ryan; Ping Chai; Michael Shatruk; Yan Xin; Karena W. Chapman; Peter J. Chupas; Frank R. Fronczek; Robin T. Macaluso

doi:10.1016/j.jssc.2014.07.033

Pr_1.33Pt₄Ga₁₀: Superstructure and magnetism

Sau Doan Nguyen
, Kevin Ryan
, Ping Chai
, Michael Shatruk
, Yan Xin
, Karena W. Chapman
, Peter J. Chupas
, Frank R. Fronczek
, Robin T. Macaluso

Chemistry

Stony Brook University

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Pr_1.33Pt₄Ga₁₀ crystals were prepared by Ga-flux method. The superstructure of this compound was studied by single-crystal X-ray diffraction (XRD), transmission electron microscopy (TEM), and diffuse X-ray scattering. Pr_1.33Pt₄Ga₁₀ adopts the P6₃/mmc space group with a=b=4.3227(5) Å, c=16.485(3) Å: the structure features Pr₂Ga₃ layers alternating with Pt₂Ga₄ layers along the c-axis. TEM studies and pair distribution function (PDF) analysis of X-ray total scattering data show that Pr₂Ga₃ layers possess an ordered superstructure (of dimension a′=a√3) in which Pr vacancies and Ga atoms are ordered within the ab-plane but disordered along the c-direction. PDF analysis also shows temperature-dependent structural features local to the Pr³⁺ ion. Magnetic measurements reveal that Pr³⁺ ions order ferrimagnetically below 12.5(2) K.

Original language	English
Pages (from-to)	9-16
Number of pages	8
Journal	Journal of Solid State Chemistry
Volume	220
Issue number	1
DOIs	https://doi.org/10.1016/j.jssc.2014.07.033
State	Published - Dec 2014

Keywords

Intermetallic
Magnetism
Pair distribution function
PrPtGa
Superstructure
Transmission electron microscopy

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10.1016/j.jssc.2014.07.033

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@article{8396bf78ed4843f88e5014668eaecdee,

title = "Pr1.33Pt4Ga10: Superstructure and magnetism",

abstract = "Pr1.33Pt4Ga10 crystals were prepared by Ga-flux method. The superstructure of this compound was studied by single-crystal X-ray diffraction (XRD), transmission electron microscopy (TEM), and diffuse X-ray scattering. Pr1.33Pt4Ga10 adopts the P63/mmc space group with a=b=4.3227(5) {\AA}, c=16.485(3) {\AA}: the structure features Pr2Ga3 layers alternating with Pt2Ga4 layers along the c-axis. TEM studies and pair distribution function (PDF) analysis of X-ray total scattering data show that Pr2Ga3 layers possess an ordered superstructure (of dimension a′=a√3) in which Pr vacancies and Ga atoms are ordered within the ab-plane but disordered along the c-direction. PDF analysis also shows temperature-dependent structural features local to the Pr3+ ion. Magnetic measurements reveal that Pr3+ ions order ferrimagnetically below 12.5(2) K.",

keywords = "Intermetallic, Magnetism, Pair distribution function, PrPtGa, Superstructure, Transmission electron microscopy",

author = "Nguyen, \{Sau Doan\} and Kevin Ryan and Ping Chai and Michael Shatruk and Yan Xin and Chapman, \{Karena W.\} and Chupas, \{Peter J.\} and Fronczek, \{Frank R.\} and Macaluso, \{Robin T.\}",

year = "2014",

month = dec,

doi = "10.1016/j.jssc.2014.07.033",

language = "English",

volume = "220",

pages = "9--16",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "1",

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TY - JOUR

T1 - Pr1.33Pt4Ga10

T2 - Superstructure and magnetism

AU - Nguyen, Sau Doan

AU - Ryan, Kevin

AU - Chai, Ping

AU - Shatruk, Michael

AU - Xin, Yan

AU - Chapman, Karena W.

AU - Chupas, Peter J.

AU - Fronczek, Frank R.

AU - Macaluso, Robin T.

PY - 2014/12

Y1 - 2014/12

N2 - Pr1.33Pt4Ga10 crystals were prepared by Ga-flux method. The superstructure of this compound was studied by single-crystal X-ray diffraction (XRD), transmission electron microscopy (TEM), and diffuse X-ray scattering. Pr1.33Pt4Ga10 adopts the P63/mmc space group with a=b=4.3227(5) Å, c=16.485(3) Å: the structure features Pr2Ga3 layers alternating with Pt2Ga4 layers along the c-axis. TEM studies and pair distribution function (PDF) analysis of X-ray total scattering data show that Pr2Ga3 layers possess an ordered superstructure (of dimension a′=a√3) in which Pr vacancies and Ga atoms are ordered within the ab-plane but disordered along the c-direction. PDF analysis also shows temperature-dependent structural features local to the Pr3+ ion. Magnetic measurements reveal that Pr3+ ions order ferrimagnetically below 12.5(2) K.

AB - Pr1.33Pt4Ga10 crystals were prepared by Ga-flux method. The superstructure of this compound was studied by single-crystal X-ray diffraction (XRD), transmission electron microscopy (TEM), and diffuse X-ray scattering. Pr1.33Pt4Ga10 adopts the P63/mmc space group with a=b=4.3227(5) Å, c=16.485(3) Å: the structure features Pr2Ga3 layers alternating with Pt2Ga4 layers along the c-axis. TEM studies and pair distribution function (PDF) analysis of X-ray total scattering data show that Pr2Ga3 layers possess an ordered superstructure (of dimension a′=a√3) in which Pr vacancies and Ga atoms are ordered within the ab-plane but disordered along the c-direction. PDF analysis also shows temperature-dependent structural features local to the Pr3+ ion. Magnetic measurements reveal that Pr3+ ions order ferrimagnetically below 12.5(2) K.

KW - Intermetallic

KW - Magnetism

KW - Pair distribution function

KW - PrPtGa

KW - Superstructure

KW - Transmission electron microscopy

UR - https://www.scopus.com/pages/publications/84906751794

U2 - 10.1016/j.jssc.2014.07.033

DO - 10.1016/j.jssc.2014.07.033

M3 - Article

SN - 0022-4596

VL - 220

SP - 9

EP - 16

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 1

ER -

Pr_1.33Pt₄Ga₁₀: Superstructure and magnetism

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Keywords

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