Magnetic order and competition with superconductivity in (Ho-Er)Ni2B2C

Suleyman Gundogdu, J. Patrick Clancy, Guangyong Xu, Yang Zhao, Paul A. Dube, Tufan C. Karalar, Beong Ki Cho, Jeffrey W. Lynn, M. Ramazanoglu*

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2 Atıf (Scopus)

Özet

The rare earth magnetic order in pure and doped Ho(1-x)Er x Ni2B2C (x = 0, 0.25, 0.50, 0.75, 1) single crystal samples was investigated using magnetization and neutron diffraction measurements. Superconducting quaternary borocarbides, RNi2B2C where R = Ho, Er, are magnetic intermetallic superconductors with the transition temperatures ∼10 K in which long range magnetic order develops in the same temperature range and competes with superconductivity. Depending on the rare earth composition the coupling between superconductivity and magnetism creates several phases, ranging from a near reentrant superconductor with a mixture of commensurate and incommensurate antiferromagnetism to an incommensurate antiferromagnetic spin modulation with a weak ferromagnetic component. All of these phases coexist with superconductivity. RKKY magnetic interactions are used to describe the magnetic orders in the pure compounds. However, the doping of Er on Ho sites which have two strong magnetic moments with two different easy directions creates new and complicated magnetic modulations with possible local disorder effects. One fascinating effect is the development of an induced magnetic state resembling the pure and doped R 2CuO4 cuprate with R = Nd and Pr.

Orijinal dilİngilizce
Makale numarası116002
DergiMaterials Research Express
Hacim7
Basın numarası11
DOI'lar
Yayın durumuYayınlandı - 1 Kas 2020

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Publisher Copyright:
© 2020 The Author(s). Published by IOP Publishing Ltd.

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