Cobalt-Based Single-Ion Magnets on an Apatite Lattice: Toward Patterned Arrays for Magnetic Memories | Sciact - CRIS-system of Boreskov Institute of Catalysis

Cobalt-Based Single-Ion Magnets on an Apatite Lattice: Toward Patterned Arrays for Magnetic Memories Full article

Journal

Inorganic Chemistry
ISSN: 0020-1669 , E-ISSN: 1520-510X

Output data

Year: 2017, Volume: 56, Number: 3, Pages: 1232-1240 Pages count : 9 DOI: 10.1021/acs.inorgchem.6b02348

Tags

RAY-ABSORPTION-SPECTROSCOPY; MOLECULE MAGNETS; AMIDO COMPLEXES; LINEAR IRON(I); ANISOTROPY; BEHAVIOR; BARRIER; LIGAND; RELAXATION; BENT

Authors

Kazin Pavel E. ¹ , Zykin Mikhail A. ² , Schnelle Walter ³ , Zubavichus Yan V. ⁴ , Babeshkin Konstantin A. ¹ , Tafeenko Victor A. ¹ , Felser Claudia ³ , Jansen Martin ^3,5

Affiliations

1	Department of Chemistry, Moscow State University
2	Department of Materials Science, Moscow State University
3	Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
4	National Research Centre “Kurchatov Institute”
5	Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany

Single-ion magnets (SIMs) that can maintain magnetization direction on an individual transition metal atom represent the smallest atomic-scale units for future magnetic data storage devices and molecular electronics. Here we present a robust extended inorganic solid hosting efficient SIM centers, as an alternative to molecular SIM crystals. We show that unique dioxocobaltate(II) ions, confined in the channels of strontium hydroxyapatite, exhibit classical SIM features with a large energy barrier for magnetization reversal (Ueff) of 51–59 cm–1. The samples have been tuned such that a magnetization hysteresis opens below 8 K and Ueff increases by a factor of 4 and can be further enhanced to the highest values among 3d metal complexes of 275 cm–1 when Ba is substituted for Sr. The SIM properties are preserved without any tendency toward spin ordering up to a high Co concentration. At a maximal Co content, a hypothetical regular hexagonal grid of SIMs with a 1 nm interspacing on the (001) crystal facet would allow a maximal magnetic recording density of 105 Gb/cm2.

Kazin P.E. , Zykin M.A. , Schnelle W. , Zubavichus Y.V. , Babeshkin K.A. , Tafeenko V.A. , Felser C. , Jansen M.
Cobalt-Based Single-Ion Magnets on an Apatite Lattice: Toward Patterned Arrays for Magnetic Memories
Inorganic Chemistry. 2017. V.56. N3. P.1232-1240. DOI: 10.1021/acs.inorgchem.6b02348 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Sep 27, 2016
Published online:	Jan 10, 2017
Published print:	Feb 6, 2017

Web of science:	WOS:000393630300028
Scopus:	2-s2.0-85011954299
Elibrary:	29477608
Chemical Abstracts:	2017:53813
Chemical Abstracts (print):	166:313585
OpenAlex:	W2568632561

DB	Citing
Web of science	24
Scopus	26
OpenAlex	26