Ising-type Magnetic Anisotropy in CePd2As2

Abstract We investigated the anisotropic magnetic properties of CePd2As2 by magnetic, thermal and electrical transport studies. X-ray diffraction confirmed the tetragonal ThCr2Si2-type structure and the high-quality of the single crystals. Magnetisation and magnetic susceptibility data taken along t...

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Autores principales:	M. O. Ajeesh, T. Shang, W. B. Jiang, W. Xie, R. D. dos Reis, M. Smidman, C. Geibel, H. Q. Yuan, M. Nicklas
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7360fb598c9a407c915fba6ff11d4344
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spelling	oai:doaj.org-article:7360fb598c9a407c915fba6ff11d43442021-12-02T16:06:29ZIsing-type Magnetic Anisotropy in CePd2As210.1038/s41598-017-07595-w2045-2322https://doaj.org/article/7360fb598c9a407c915fba6ff11d43442017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07595-whttps://doaj.org/toc/2045-2322Abstract We investigated the anisotropic magnetic properties of CePd2As2 by magnetic, thermal and electrical transport studies. X-ray diffraction confirmed the tetragonal ThCr2Si2-type structure and the high-quality of the single crystals. Magnetisation and magnetic susceptibility data taken along the different crystallographic directions evidence a huge crystalline electric field (CEF) induced Ising-type magneto-crystalline anisotropy with a large c-axis moment and a small in-plane moment at low temperature. A detailed CEF analysis based on the magnetic susceptibility data indicates an almost pure \|±5/2〉 CEF ground-state doublet with the dominantly \|±3/2〉 and the \|±1/2〉 doublets at 290 K and 330 K, respectively. At low temperature, we observe a uniaxial antiferromagnetic (AFM) transition at T N = 14.7 K with the crystallographic c-direction being the magnetic easy-axis. The magnetic entropy gain up to T N reaches almost R ln 2 indicating localised 4 f-electron magnetism without significant Kondo-type interactions. Below T N , the application of a magnetic field along the c-axis induces a metamagnetic transition from the AFM to a field-polarised phase at μ 0 H c0 = 0.95 T, exhibiting a text-book example of a spin-flip transition as anticipated for an Ising-type AFM.M. O. AjeeshT. ShangW. B. JiangW. XieR. D. dos ReisM. SmidmanC. GeibelH. Q. YuanM. NicklasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q M. O. Ajeesh T. Shang W. B. Jiang W. Xie R. D. dos Reis M. Smidman C. Geibel H. Q. Yuan M. Nicklas Ising-type Magnetic Anisotropy in CePd2As2
description	Abstract We investigated the anisotropic magnetic properties of CePd2As2 by magnetic, thermal and electrical transport studies. X-ray diffraction confirmed the tetragonal ThCr2Si2-type structure and the high-quality of the single crystals. Magnetisation and magnetic susceptibility data taken along the different crystallographic directions evidence a huge crystalline electric field (CEF) induced Ising-type magneto-crystalline anisotropy with a large c-axis moment and a small in-plane moment at low temperature. A detailed CEF analysis based on the magnetic susceptibility data indicates an almost pure \|±5/2〉 CEF ground-state doublet with the dominantly \|±3/2〉 and the \|±1/2〉 doublets at 290 K and 330 K, respectively. At low temperature, we observe a uniaxial antiferromagnetic (AFM) transition at T N = 14.7 K with the crystallographic c-direction being the magnetic easy-axis. The magnetic entropy gain up to T N reaches almost R ln 2 indicating localised 4 f-electron magnetism without significant Kondo-type interactions. Below T N , the application of a magnetic field along the c-axis induces a metamagnetic transition from the AFM to a field-polarised phase at μ 0 H c0 = 0.95 T, exhibiting a text-book example of a spin-flip transition as anticipated for an Ising-type AFM.
format	article
author	M. O. Ajeesh T. Shang W. B. Jiang W. Xie R. D. dos Reis M. Smidman C. Geibel H. Q. Yuan M. Nicklas
author_facet	M. O. Ajeesh T. Shang W. B. Jiang W. Xie R. D. dos Reis M. Smidman C. Geibel H. Q. Yuan M. Nicklas
author_sort	M. O. Ajeesh
title	Ising-type Magnetic Anisotropy in CePd2As2
title_short	Ising-type Magnetic Anisotropy in CePd2As2
title_full	Ising-type Magnetic Anisotropy in CePd2As2
title_fullStr	Ising-type Magnetic Anisotropy in CePd2As2
title_full_unstemmed	Ising-type Magnetic Anisotropy in CePd2As2
title_sort	ising-type magnetic anisotropy in cepd2as2
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/7360fb598c9a407c915fba6ff11d4344
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Ising-type Magnetic Anisotropy in CePd2As2

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