Strong Magnetocrystalline Anisotropy Arising from Metal–Ligand Covalency in a Metal–Organic Candidate for 2D Magnetic Order

Wang, Yiran; Ziebel, Michael E.; Sun, Lei; Gish, J. Tyler; Pearson, Tyler J.; Lu, Xue-Zeng; Thorarinsdottir, Agnes E.; Hersam, Mark C.; Long, Jeffrey R.; Freedman, Danna E.; Rondinelli, James M.; Puggioni, Danilo; Harris, T. David

doi:10.1021/acs.chemmater.1c02670

Title: Strong Magnetocrystalline Anisotropy Arising from Metal–Ligand Covalency in a Metal–Organic Candidate for 2D Magnetic Order

Abstract

Layered metal-organic frameworks are promising candidates for new two-dimensional (2D) magnets, as the synthetic programmability of these materials can provide a route to diverse structural and electronic properties. However, such framework materials typically lack the heavy elements that engender magnetocrystalline anisotropy in the monolayer ferromagnets reported to date. Alternative sources of magnetic anisotropy are therefore needed in these materials. Here, we report the synthesis of single crystals of the framework material (NMe4)2[Fe2L3] (H2L = 3,6-dichloro-2,5-dihydroxybenzoquinone) and evaluate the angular dependence of its magnetic properties. Oriented-crystal magnetization measurements reveal strong uniaxial anisotropy, where the easy axis is aligned with the crystallographic c axis. While the spin carriers of this structure are isotropic S = 5/2 FeIII metal centers and S = 1/2 organic linkers, the anisotropy energy of the framework material is comparable to that of reported 2D ferromagnets. Density functional theory calculations indicate that the observed magnetocrystalline anisotropy arises from ligand-to-metal charge transfer that enhances the magnetic anisotropy of the otherwise-isotropic Fe centers, suggesting that metal-ligand covalency can be utilized as a general additive for the development of 2D magnets. These results show the possibility for (NMe4)2[Fe2L3] to retain magnetic order down to the 2D monolayer limit. In addition, themore »« less

Authors:

^[1];

^[2];

^[1]; Gish, J. Tyler ^[1]; Pearson, Tyler J. ^[1]; Lu, Xue-Zeng ^[1]; Thorarinsdottir, Agnes E. ^[1];

^[1];

^[3];

^[4];

^[1];

^[5]

Northwestern Univ., Evanston, IL (United States)
Univ. of California, Berkeley, CA (United States)
Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Northwestern Univ., Evanston, IL (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Northwestern Univ., Evanston, IL (United States); Univ. of California, Berkeley, CA (United States)

Publication Date:: Tue Nov 02 00:00:00 EDT 2021

Research Org.:: Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Northwestern Univ., Evanston, IL (United States)

Sponsoring Org.:: Camille and Henry Dreyfus Foundation; National Science Foundation (NSF); State of Illinois; Institute of Nanotechnology (IIN); USDOE Office of Science (SC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division

OSTI Identifier:: 1865140

Alternate Identifier(s):: OSTI ID: 1905576; OSTI ID: 1961803

Grant/Contract Number:: SC0019356; AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Chemistry of Materials

Additional Journal Information:: Journal Volume: 33; Journal Issue: 22; Journal ID: ISSN 0897-4756

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Two dimensional materials; Magnetic properties; Crystals; Crystal structure; Layered materials

Citation Formats


                    Wang, Yiran, Ziebel, Michael E., Sun, Lei, Gish, J. Tyler, Pearson, Tyler J., Lu, Xue-Zeng, Thorarinsdottir, Agnes E., Hersam, Mark C., Long, Jeffrey R., Freedman, Danna E., Rondinelli, James M., Puggioni, Danilo, and Harris, T. David. Strong Magnetocrystalline Anisotropy Arising from Metal–Ligand Covalency in a Metal–Organic Candidate for 2D Magnetic Order.  United States: N. p., 2021. 
Web.  doi:10.1021/acs.chemmater.1c02670.

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                    Wang, Yiran, Ziebel, Michael E., Sun, Lei, Gish, J. Tyler, Pearson, Tyler J., Lu, Xue-Zeng, Thorarinsdottir, Agnes E., Hersam, Mark C., Long, Jeffrey R., Freedman, Danna E., Rondinelli, James M., Puggioni, Danilo, & Harris, T. David. Strong Magnetocrystalline Anisotropy Arising from Metal–Ligand Covalency in a Metal–Organic Candidate for 2D Magnetic Order.  United States.  https://doi.org/10.1021/acs.chemmater.1c02670

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                    Wang, Yiran, Ziebel, Michael E., Sun, Lei, Gish, J. Tyler, Pearson, Tyler J., Lu, Xue-Zeng, Thorarinsdottir, Agnes E., Hersam, Mark C., Long, Jeffrey R., Freedman, Danna E., Rondinelli, James M., Puggioni, Danilo, and Harris, T. David. Tue .  
"Strong Magnetocrystalline Anisotropy Arising from Metal–Ligand Covalency in a Metal–Organic Candidate for 2D Magnetic Order".  United States.  https://doi.org/10.1021/acs.chemmater.1c02670.  https://www.osti.gov/servlets/purl/1865140.

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@article{osti_1865140,

  title        = {Strong Magnetocrystalline Anisotropy Arising from Metal–Ligand Covalency in a Metal–Organic Candidate for 2D Magnetic Order},

  author       = {Wang, Yiran and Ziebel, Michael E. and Sun, Lei and Gish, J. Tyler and Pearson, Tyler J. and Lu, Xue-Zeng and Thorarinsdottir, Agnes E. and Hersam, Mark C. and Long, Jeffrey R. and Freedman, Danna E. and Rondinelli, James M. and Puggioni, Danilo and Harris, T. David},

  abstractNote = {Layered metal-organic frameworks are promising candidates for new two-dimensional (2D) magnets, as the synthetic programmability of these materials can provide a route to diverse structural and electronic properties. However, such framework materials typically lack the heavy elements that engender magnetocrystalline anisotropy in the monolayer ferromagnets reported to date. Alternative sources of magnetic anisotropy are therefore needed in these materials. Here, we report the synthesis of single crystals of the framework material (NMe4)2[Fe2L3] (H2L = 3,6-dichloro-2,5-dihydroxybenzoquinone) and evaluate the angular dependence of its magnetic properties. Oriented-crystal magnetization measurements reveal strong uniaxial anisotropy, where the easy axis is aligned with the crystallographic c axis. While the spin carriers of this structure are isotropic S = 5/2 FeIII metal centers and S = 1/2 organic linkers, the anisotropy energy of the framework material is comparable to that of reported 2D ferromagnets. Density functional theory calculations indicate that the observed magnetocrystalline anisotropy arises from ligand-to-metal charge transfer that enhances the magnetic anisotropy of the otherwise-isotropic Fe centers, suggesting that metal-ligand covalency can be utilized as a general additive for the development of 2D magnets. These results show the possibility for (NMe4)2[Fe2L3] to retain magnetic order down to the 2D monolayer limit. In addition, the combination of large magnetic anisotropy and semiconducting character in (NMe4)2[Fe2L3] highlights its potential as a new 2D magnetic semiconductor.},

  doi          = {10.1021/acs.chemmater.1c02670},

  journal      = {Chemistry of Materials},

  number       = 22,

  volume       = 33,

  place        = {United States},

  year         = {Tue Nov 02 00:00:00 EDT 2021},

  month        = {Tue Nov 02 00:00:00 EDT 2021}

}

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Nature, Vol. 563, Issue 7729
DOI: 10.1038/s41586-018-0626-9

A Ferric Semiquinoid Single-Chain Magnet via Thermally-Switchable Metal–Ligand Electron Transfer
journal, May 2018

DeGayner, Jordan A.; Wang, Kunyu; Harris, T. David
Journal of the American Chemical Society, Vol. 140, Issue 21
DOI: 10.1021/jacs.8b03949

Diamagnetic Corrections and Pascal's Constants
journal, April 2008

Bain, Gordon A.; Berry, John F.
Journal of Chemical Education, Vol. 85, Issue 4
DOI: 10.1021/ed085p532

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Title: Strong Magnetocrystalline Anisotropy Arising from Metal–Ligand Covalency in a Metal–Organic Candidate for 2D Magnetic Order

Abstract

Citation Formats

Electric Field Effect in Atomically Thin Carbon Films journal, October 2004

Two-dimensional atomic crystals journal, July 2005

Two-dimensional van der Waals materials journal, September 2016

Two-dimensional gas of massless Dirac fermions in graphene journal, November 2005

Atomically Thin MoS2 A New Direct-Gap Semiconductor journal, September 2010

Heterointerface effects in the electrointercalation of van der Waals heterostructures journal, June 2018

Van der Waals heterostructures journal, July 2013

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Superconductivity and strong correlations in moiré flat bands journal, May 2020

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Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit journal, June 2017

Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals journal, April 2017

Two-dimensional itinerant ferromagnetism in atomically thin Fe3GeTe2 journal, August 2018

Electrical control of 2D magnetism in bilayer CrI3 journal, April 2018

Electric-field switching of two-dimensional van der Waals magnets journal, March 2018

Giant tunneling magnetoresistance in spin-filter van der Waals heterostructures journal, May 2018

Gate-tunable spin waves in antiferromagnetic atomic bilayers journal, June 2020

Electrical spin injection in a ferromagnetic semiconductor heterostructure journal, December 1999

Current-induced domain-wall switching in a ferromagnetic semiconductor structure journal, April 2004

Challenges for semiconductor spintronics journal, March 2007

Electric-field control of ferromagnetism journal, December 2000

Electrical Manipulation of Magnetization Reversal in a Ferromagnetic Semiconductor journal, August 2003

Magnetic 2D materials and heterostructures journal, May 2019

Intrinsic Van Der Waals Magnetic Materials from Bulk to the 2D Limit: New Frontiers of Spintronics journal, May 2019

Layered Antiferromagnetism Induces Large Negative Magnetoresistance in the van der Waals Semiconductor CrSBr journal, August 2020

Introduction to Metal–Organic Frameworks journal, September 2011

Electrically Conductive Metal–Organic Frameworks journal, April 2020

Engineering the Optical Response of the Titanium-MIL-125 Metal–Organic Framework through Ligand Functionalization journal, July 2013

Reversible Magnetism between an Antiferromagnet and a Ferromagnet Related to Solvation/Desolvation in a Robust Layered [Ru 2 ] 2 TCNQ Charge-Transfer System journal, August 2010

Half-metallicity of a kagome spin lattice: the case of a manganese bis-dithiolene monolayer journal, January 2013

2D Conductive Iron-Quinoid Magnets Ordering up to T c = 105 K via Heterogenous Redox Chemistry journal, March 2017

Isoreticular two-dimensional magnetic coordination polymers prepared through pre-synthetic ligand functionalization journal, August 2018

Formation of the layered conductive magnet CrCl2(pyrazine)2 through redox-active coordination chemistry journal, September 2018

A semiconducting layered metal-organic framework magnet journal, July 2019

Metal–Organic Framework Magnets journal, February 2020

Metal-organic magnets with large coercivity and ordering temperatures up to 242°C journal, October 2020

Ferromagnetic-resonance study of ultrathin bcc Fe(100) films grown epitaxially on fcc Ag(100) substrates journal, October 1987

On the origin of magnetic anisotropy in two dimensional CrI 3 journal, June 2017

Temperature-dependent magnetic anisotropy in the layered magnetic semiconductors Cr I 3 and CrB r 3 journal, February 2018

Nearly room temperature ferromagnetism in a magnetic metal-rich van der Waals metal journal, January 2020

Anisotropy of rare-earth magnets journal, August 2009

Nonmetallic Atoms Induced Magnetic Anisotropy in Monolayer Chromium Trihalides journal, December 2018

Coordination compounds of 1,4-dihydroxybenzoquinone and its homologues. Structures and properties journal, January 2002

Phenazineoxonium chloranilatomanganate and chloranilatoferrate: synthesis, structure, magnetic properties, and Mössbauer spectra journal, June 2011

A Family of Layered Chiral Porous Magnets Exhibiting Tunable Ordering Temperatures journal, August 2013

A 2D Semiquinone Radical-Containing Microporous Magnet with Solvent-Induced Switching from T c = 26 to 80 K journal, December 2015

Control of Electronic Structure and Conductivity in Two-Dimensional Metal–Semiquinoid Frameworks of Titanium, Vanadium, and Chromium journal, February 2018

Metal–Diamidobenzoquinone Frameworks via Post-Synthetic Linker Exchange journal, February 2020

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Magnetic Phase Switching in a Tetraoxolene-Bridged Honeycomb Ferrimagnet Using a Lithium Ion Battery System journal, November 2017

Reversible redox switching of magnetic order and electrical conductivity in a 2D manganese benzoquinoid framework journal, January 2019

Effects of Covalency on Anionic Redox Chemistry in Semiquinoid-Based Metal–Organic Frameworks journal, January 2020

Electronic Conductivity, Ferrimagnetic Ordering, and Reductive Insertion Mediated by Organic Mixed-Valence in a Ferric Semiquinoid Metal–Organic Framework journal, December 2015

A Mechanism of Magnetic Hysteresis in Heterogeneous Alloys journal, May 1948

Evolution of Magnetic Anisotropy With Sm Contents in Sm–Co Thin Films journal, November 2018

A Room-Temperature Molecular/Organic-Based Magnet journal, June 1991

[MII(tcne)2]⋅x CH2Cl2 (M=Mn, Fe, Co, Ni) Molecule-Based Magnets withTc Values Above 100 K and Coercive Fields up to 6500 Oe journal, March 1998

Increasing the Coercivity in Layered Molecular-based Magnets A[MIIMIII(ox)3] (MII = Mn, Fe, Co, Ni, Cu; MIII = Cr, Fe; ox = oxalate; A = organic or organometallic cation) journal, May 1999

Large Coercivity and High Remanent Magnetization Organic-Based Magnets journal, January 2000

Charge-transfer two-dimensional layers constructed from a 2 : 1 assembly of paddlewheel diruthenium(II,II) complexes and bis[1,2,5]thiadizolotetracyanoquinodimethane: bulk magnetic behavior as a function of inter-layer interactions journal, January 2009

Electrochemical development of magnetic long-range correlations with Tc = 128 K in a tetraoxolene-bridged Fe-based framework journal, January 2020

The effect of magnetization anisotropy and paramagnetic susceptibility on the magnetization process journal, December 2015

Classical Theory of the Temperature Dependence of Magnetic Anisotropy Energy journal, December 1954

Temperature Dependence of Ferromagnetic Anisotropy journal, March 1958

Magnetic anisotropy of the single-crystalline ferromagnetic insulator Cr 2 Ge 2 Te 6 journal, February 2016

Origin of magnetic anisotropy and spiral spin order in multiferroic BiFeO 3 journal, June 2012

Magnetic Properties of FeCl 3 -Graphite Compounds. II. Magnetic Susceptibilities. journal, April 1974

Hexagonal ferrites: A review of the synthesis, properties and applications of hexaferrite ceramics journal, September 2012

Rapport sur quelques recherches dans le domaine du magnétisme aux laboratoires Philips journal, January 1959

Magnetic Anisotropy of Magnetoplumbite BaFe 12 O 19 journal, May 1965

Maximally localized Wannier functions: Theory and applications journal, October 2012

An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions journal, August 2014

Nanosheets of Two-Dimensional Magnetic and Conducting Fe(II)/Fe(III) Mixed-Valence Metal–Organic Frameworks journal, July 2017

Two-dimensional, conductive niobium and molybdenum metal–organic frameworks journal, January 2020

Gate-tunable room-temperature ferromagnetism in two-dimensional Fe3GeTe2 journal, October 2018

A Ferric Semiquinoid Single-Chain Magnet via Thermally-Switchable Metal–Ligand Electron Transfer journal, May 2018

Diamagnetic Corrections and Pascal's Constants journal, April 2008

Electric Field Effect in Atomically Thin Carbon Films
journal, October 2004

Two-dimensional atomic crystals
journal, July 2005

Two-dimensional van der Waals materials
journal, September 2016

Two-dimensional gas of massless Dirac fermions in graphene
journal, November 2005

Atomically Thin ${MoS}_{2}$ A New Direct-Gap Semiconductor
journal, September 2010

Heterointerface effects in the electrointercalation of van der Waals heterostructures
journal, June 2018

Van der Waals heterostructures
journal, July 2013

2D materials and van der Waals heterostructures
journal, July 2016

Superconductivity and strong correlations in moiré flat bands
journal, May 2020

Emergent phenomena and proximity effects in two-dimensional magnets and heterostructures
journal, September 2020

Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit
journal, June 2017

Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals
journal, April 2017

Two-dimensional itinerant ferromagnetism in atomically thin Fe3GeTe2
journal, August 2018

Electrical control of 2D magnetism in bilayer CrI3
journal, April 2018

Electric-field switching of two-dimensional van der Waals magnets
journal, March 2018

Giant tunneling magnetoresistance in spin-filter van der Waals heterostructures
journal, May 2018

Gate-tunable spin waves in antiferromagnetic atomic bilayers
journal, June 2020

Electrical spin injection in a ferromagnetic semiconductor heterostructure
journal, December 1999

Current-induced domain-wall switching in a ferromagnetic semiconductor structure
journal, April 2004

Challenges for semiconductor spintronics
journal, March 2007

Electric-field control of ferromagnetism
journal, December 2000

Electrical Manipulation of Magnetization Reversal in a Ferromagnetic Semiconductor
journal, August 2003

Magnetic 2D materials and heterostructures
journal, May 2019

Intrinsic Van Der Waals Magnetic Materials from Bulk to the 2D Limit: New Frontiers of Spintronics
journal, May 2019

Layered Antiferromagnetism Induces Large Negative Magnetoresistance in the van der Waals Semiconductor CrSBr
journal, August 2020

Introduction to Metal–Organic Frameworks
journal, September 2011

Electrically Conductive Metal–Organic Frameworks
journal, April 2020

Engineering the Optical Response of the Titanium-MIL-125 Metal–Organic Framework through Ligand Functionalization
journal, July 2013

Reversible Magnetism between an Antiferromagnet and a Ferromagnet Related to Solvation/Desolvation in a Robust Layered [Ru ₂ ] ₂ TCNQ Charge-Transfer System
journal, August 2010

Half-metallicity of a kagome spin lattice: the case of a manganese bis-dithiolene monolayer
journal, January 2013

2D Conductive Iron-Quinoid Magnets Ordering up to T _c = 105 K via Heterogenous Redox Chemistry
journal, March 2017

Isoreticular two-dimensional magnetic coordination polymers prepared through pre-synthetic ligand functionalization
journal, August 2018

Formation of the layered conductive magnet CrCl2(pyrazine)2 through redox-active coordination chemistry
journal, September 2018

A semiconducting layered metal-organic framework magnet
journal, July 2019

Metal–Organic Framework Magnets
journal, February 2020

Metal-organic magnets with large coercivity and ordering temperatures up to 242°C
journal, October 2020

Ferromagnetic-resonance study of ultrathin bcc Fe(100) films grown epitaxially on fcc Ag(100) substrates
journal, October 1987

On the origin of magnetic anisotropy in two dimensional CrI ₃
journal, June 2017

Temperature-dependent magnetic anisotropy in the layered magnetic semiconductors $Cr I_{3}$ and $CrB r_{3}$
journal, February 2018

Nearly room temperature ferromagnetism in a magnetic metal-rich van der Waals metal
journal, January 2020

Anisotropy of rare-earth magnets
journal, August 2009

Nonmetallic Atoms Induced Magnetic Anisotropy in Monolayer Chromium Trihalides
journal, December 2018

Coordination compounds of 1,4-dihydroxybenzoquinone and its homologues. Structures and properties
journal, January 2002

Phenazineoxonium chloranilatomanganate and chloranilatoferrate: synthesis, structure, magnetic properties, and Mössbauer spectra
journal, June 2011

A Family of Layered Chiral Porous Magnets Exhibiting Tunable Ordering Temperatures
journal, August 2013

A 2D Semiquinone Radical-Containing Microporous Magnet with Solvent-Induced Switching from T _c = 26 to 80 K
journal, December 2015

Control of Electronic Structure and Conductivity in Two-Dimensional Metal–Semiquinoid Frameworks of Titanium, Vanadium, and Chromium
journal, February 2018

Metal–Diamidobenzoquinone Frameworks via Post-Synthetic Linker Exchange
journal, February 2020

Tuning Charge-State Localization in a Semiconductive Iron(III)–Chloranilate Framework Magnet Using a Redox-Active Cation
journal, August 2020

Magnetic Phase Switching in a Tetraoxolene-Bridged Honeycomb Ferrimagnet Using a Lithium Ion Battery System
journal, November 2017

Reversible redox switching of magnetic order and electrical conductivity in a 2D manganese benzoquinoid framework
journal, January 2019

Effects of Covalency on Anionic Redox Chemistry in Semiquinoid-Based Metal–Organic Frameworks
journal, January 2020

Electronic Conductivity, Ferrimagnetic Ordering, and Reductive Insertion Mediated by Organic Mixed-Valence in a Ferric Semiquinoid Metal–Organic Framework
journal, December 2015

A Mechanism of Magnetic Hysteresis in Heterogeneous Alloys
journal, May 1948

Evolution of Magnetic Anisotropy With Sm Contents in Sm–Co Thin Films
journal, November 2018

A Room-Temperature Molecular/Organic-Based Magnet
journal, June 1991

[MII(tcne)2]⋅x CH2Cl2 (M=Mn, Fe, Co, Ni) Molecule-Based Magnets withTc Values Above 100 K and Coercive Fields up to 6500 Oe
journal, March 1998

Increasing the Coercivity in Layered Molecular-based Magnets A[MIIMIII(ox)3] (MII = Mn, Fe, Co, Ni, Cu; MIII = Cr, Fe; ox = oxalate; A = organic or organometallic cation)
journal, May 1999

Large Coercivity and High Remanent Magnetization Organic-Based Magnets
journal, January 2000

Charge-transfer two-dimensional layers constructed from a 2 : 1 assembly of paddlewheel diruthenium(II,II) complexes and bis[1,2,5]thiadizolotetracyanoquinodimethane: bulk magnetic behavior as a function of inter-layer interactions
journal, January 2009

Electrochemical development of magnetic long-range correlations with Tc = 128 K in a tetraoxolene-bridged Fe-based framework
journal, January 2020

The effect of magnetization anisotropy and paramagnetic susceptibility on the magnetization process
journal, December 2015

Classical Theory of the Temperature Dependence of Magnetic Anisotropy Energy
journal, December 1954

Temperature Dependence of Ferromagnetic Anisotropy
journal, March 1958

Magnetic anisotropy of the single-crystalline ferromagnetic insulator Cr ₂ Ge ₂ Te ₆
journal, February 2016

Origin of magnetic anisotropy and spiral spin order in multiferroic BiFeO ₃
journal, June 2012

Magnetic Properties of FeCl ₃ -Graphite Compounds. II. Magnetic Susceptibilities.
journal, April 1974

Hexagonal ferrites: A review of the synthesis, properties and applications of hexaferrite ceramics
journal, September 2012

Rapport sur quelques recherches dans le domaine du magnétisme aux laboratoires Philips
journal, January 1959

Magnetic Anisotropy of Magnetoplumbite BaFe ₁₂ O ₁₉
journal, May 1965

Maximally localized Wannier functions: Theory and applications
journal, October 2012

An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions
journal, August 2014

Nanosheets of Two-Dimensional Magnetic and Conducting Fe(II)/Fe(III) Mixed-Valence Metal–Organic Frameworks
journal, July 2017

Two-dimensional, conductive niobium and molybdenum metal–organic frameworks
journal, January 2020

Gate-tunable room-temperature ferromagnetism in two-dimensional Fe3GeTe2
journal, October 2018

A Ferric Semiquinoid Single-Chain Magnet via Thermally-Switchable Metal–Ligand Electron Transfer
journal, May 2018

Diamagnetic Corrections and Pascal's Constants
journal, April 2008