Tailoring structure and magnetic properties of NixCo1−x(N(CN)2)2 molecular magnets

Dooyong Lee; D. J. Williams; S. C. Vogel; Th Proffen; J. D. Thompson; L. L. Daemen; Sungkyun Park

doi:10.1016/j.cap.2016.06.015

Tailoring structure and magnetic properties of Ni_xCo_1−x(N(CN)₂)₂ molecular magnets

Dooyong Lee
, D. J. Williams
, S. C. Vogel
, Th Proffen
, J. D. Thompson
, L. L. Daemen
, Sungkyun Park

Los Alamos National Laboratory
Oak Ridge National Laboratory
Pusan National University

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

2 Scopus citations

Abstract

A series of transition metal Ni_xCo_1−x(N(CN)₂)₂ dicyanamide molecular magnet, 0 ≤ x ≤ 1, was chemically synthesized. Structure and magnetic properties were investigated by IR spectroscopy, neutron powder diffraction and temperature-dependent magnetization measurement. The neutron powder diffraction measurement established that all samples showed the rutile structure with Pnnm space group. The detailed Rietveld refinement results revealed a systematic decrease of unit-cell volume with increasing Ni content. We also observed a concurrent increase of the Curie temperature with Ni content due to the increase of superexchange interaction.

Original language	English
Pages (from-to)	1100-1104
Number of pages	5
Journal	Current Applied Physics
Volume	16
Issue number	9
DOIs	https://doi.org/10.1016/j.cap.2016.06.015
State	Published - 1 Sep 2016

Keywords

Molecular magnets
Neutron diffraction
Transition metal dicyanamide

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10.1016/j.cap.2016.06.015

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title = "Tailoring structure and magnetic properties of NixCo1−x(N(CN)2)2 molecular magnets",

abstract = "A series of transition metal NixCo1−x(N(CN)2)2 dicyanamide molecular magnet, 0 ≤ x ≤ 1, was chemically synthesized. Structure and magnetic properties were investigated by IR spectroscopy, neutron powder diffraction and temperature-dependent magnetization measurement. The neutron powder diffraction measurement established that all samples showed the rutile structure with Pnnm space group. The detailed Rietveld refinement results revealed a systematic decrease of unit-cell volume with increasing Ni content. We also observed a concurrent increase of the Curie temperature with Ni content due to the increase of superexchange interaction.",

keywords = "Molecular magnets, Neutron diffraction, Transition metal dicyanamide",

author = "Dooyong Lee and Williams, \{D. J.\} and Vogel, \{S. C.\} and Th Proffen and Thompson, \{J. D.\} and Daemen, \{L. L.\} and Sungkyun Park",

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doi = "10.1016/j.cap.2016.06.015",

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T1 - Tailoring structure and magnetic properties of NixCo1−x(N(CN)2)2 molecular magnets

AU - Lee, Dooyong

AU - Williams, D. J.

AU - Vogel, S. C.

AU - Proffen, Th

AU - Thompson, J. D.

AU - Daemen, L. L.

AU - Park, Sungkyun

PY - 2016/9/1

Y1 - 2016/9/1

N2 - A series of transition metal NixCo1−x(N(CN)2)2 dicyanamide molecular magnet, 0 ≤ x ≤ 1, was chemically synthesized. Structure and magnetic properties were investigated by IR spectroscopy, neutron powder diffraction and temperature-dependent magnetization measurement. The neutron powder diffraction measurement established that all samples showed the rutile structure with Pnnm space group. The detailed Rietveld refinement results revealed a systematic decrease of unit-cell volume with increasing Ni content. We also observed a concurrent increase of the Curie temperature with Ni content due to the increase of superexchange interaction.

AB - A series of transition metal NixCo1−x(N(CN)2)2 dicyanamide molecular magnet, 0 ≤ x ≤ 1, was chemically synthesized. Structure and magnetic properties were investigated by IR spectroscopy, neutron powder diffraction and temperature-dependent magnetization measurement. The neutron powder diffraction measurement established that all samples showed the rutile structure with Pnnm space group. The detailed Rietveld refinement results revealed a systematic decrease of unit-cell volume with increasing Ni content. We also observed a concurrent increase of the Curie temperature with Ni content due to the increase of superexchange interaction.

KW - Molecular magnets

KW - Neutron diffraction

KW - Transition metal dicyanamide

UR - https://www.scopus.com/pages/publications/84976614133

U2 - 10.1016/j.cap.2016.06.015

DO - 10.1016/j.cap.2016.06.015

M3 - Article

AN - SCOPUS:84976614133

SN - 1567-1739

VL - 16

SP - 1100

EP - 1104

JO - Current Applied Physics

JF - Current Applied Physics

IS - 9

ER -

Tailoring structure and magnetic properties of Ni_xCo_1−x(N(CN)₂)₂ molecular magnets

Abstract

Keywords

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