Structure-Property Relations in Multiferroic [(CH3 )2 NH2 ] M(HCOO)3 ( M = Mn, Co, Ni)

Inorganic Chemistry
Kendall D HugheyJ L Musfeldt

Abstract

We bring together magnetization, infrared spectroscopy, and lattice dynamics calculations to uncover the magnetic field-temperature ( B- T) phase diagrams and vibrational properties of the [(CH3)2NH2] M(HCOO)3 ( M = Mn2+, Co2+, Ni2+) family of multiferroics. While the magnetically driven transition to the fully saturated state in [(CH3)2NH2]Mn(HCOO)3 takes place at 15.3 T, substitution with Ni or Co drives the critical fields up toward 100 T, an unexpectedly high energy scale for these compounds. Analysis of the infrared spectrum of the Mn and Ni compounds across TC reveals doublet splitting of the formate bending mode which functions as an order parameter of the ferroelectric transition. By contrast, [(CH3)2NH2]Co(HCOO)3 reveals a surprising framework rigidity across the order-disorder transition due to modest distortions around the Co2+ centers. The transition to the ferroelectric state is thus driven by the dimethylammonium cation freezing and the resulting hydrogen bonding. Under applied field, the Mn (and most likely, the Ni) compounds engage the formate bending mode to facilitate the transition to their fully saturated magnetic states, whereas the Co complex adopts a different mechanism involving formate stretching distor...Continue Reading

References

Dec 15, 1994·Physical Review. B, Condensed Matter·P E Blöchl
Aug 15, 1995·Physical Review. B, Condensed Matter·A I LiechtensteinJ Zaanen
Oct 15, 1996·Physical Review. B, Condensed Matter·G Kresse, J Furthmüller
Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Jul 16, 2005·Science·Nicola A Spaldin, Manfred Fiebig
Jan 3, 2007·Nature Materials·Sang-Wook Cheong, Maxim Mostovoy
Jan 3, 2007·Nature Materials·R Ramesh, Nicola A Spaldin
Apr 24, 2010·Advanced Materials·Carlos A F VazRamamoorthy Ramesh
Aug 13, 2013·Physical Review Letters·T V BrinzariJ L Musfeldt
Apr 4, 2014·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·M MączkaJ Hanuza
Jun 7, 2013·Physical Review Letters·T V BrinzariJ L Musfeldt
Oct 14, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Mirosław MączkaAdam Pikul
Nov 15, 2014·Inorganic Chemistry·Mirosław MączkaKrzysztof Hermanowicz
Nov 25, 2014·Journal of Physics. Condensed Matter : an Institute of Physics Journal·M AckermannL Bohatý
Apr 14, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Aneta CiupaMaciej Ptak
Dec 31, 2015·Journal of the American Chemical Society·L Claudia Gómez-AguirreVivien S Zapf
Jan 5, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Maciej PtakLucyna Macalik
Jan 15, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Helen D DuncanAnthony E Phillips
Feb 2, 2016·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·K Szymborska-MałekA Gągor

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.