Untitled

Бражкин, В. В.

doi:10.1070/pu2006v049n07abeh006013

Cited by 38 publications

(25 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compositional, structural, and morphological metastable phases form under non-equilibrium and kineticallycontrolled pathways. 106,107 An optimal temperature range where nucleation rates are at their maximum for metastable phases exists and can be extended by modifying the crystal growth rate. 76 Phases containing transition-metal cations with higher oxidation states (e.g., LaFeO 3 ) can be stabilized by superoxides and peroxides that form in alkali-metal hydroxide fluxes at lower reaction temperatures, e.g., NaOH-KOH eutectic.…”

Section: B Preparation Of Metal-oxides With Limited Stabilitymentioning

confidence: 99%

“…Flux reactions can provide access to the crystal growth of new compositions, structures, and morphologies of phases that have not been previously achieved using traditional solid-state methods. Flux synthesis can also aid in thermodynamically or kinetically stabilizing new phases during crystal growth by increasing the lifetimes of the nonequilibrium phases 106,107. …”

mentioning

confidence: 99%

See 1 more Smart Citation

Flux-mediated crystal growth of metal oxides: synthetic tunability of particle morphologies, sizes, and surface features for photocatalysis research

2015

View full text Add to dashboard Cite

Molten-salt reactions can be used to prepare single-crystal metal-oxide particles with morphologies and sizes that can be varied from the nanoscale to the microscale, subsequently enabling a growing number of novel investigations into their photocatalytic activities. Crystal growth using flux-mediated methods facilitates finer synthetic manipulation over particle characteristics. The synthetic flexibility that flux synthesis affords for the growth of metaloxides has led to the stabilization of phases limited stability, the discovery of new compositions, and access to alternate crystal morphologies and sizes that exhibit significant changes in photocatalytic activities at their surfaces, such as for the reduction of water to hydrogen in aqueous solutions. This approach has significantly impacted the current understanding of the optical and photocatalytic properties of metal-oxides, such as the dependence of band gap energies on the structure and chemical composition (i.e., obtained from flux-mediated ionexchange reactions). Thus, flux preparations of metal-oxide photocatalysts assist in the growth 2 and optimization of their particles in order to understand and tune the photocatalytic reaction rates at their surfaces.

show abstract

Section: B Preparation Of Metal-oxides With Limited Stabilitymentioning

confidence: 99%

mentioning

confidence: 99%

Flux-mediated crystal growth of metal oxides: synthetic tunability of particle morphologies, sizes, and surface features for photocatalysis research

2015

View full text Add to dashboard Cite

show abstract

“…[51] and [52], since the DM interaction always induces the electric polarization, the true reason of electrical polarization in [NH 4 ][M(HCOO) 3 ], KCo(HCOO) 3 , and Cr 1/3 NbS 2 must be the magnetic one -the formation of chiral magnetic soliton lattice. Activation of DM forces in [NH 4 ][M(HCOO)] 3 must occur at higher temperature than in KCo(HCOO) 3 and Cr 1/3 NbS 2 , since the ordering of NH 4 + ions and the transition from the P6 3 22 phase to the P6 3 one disrupts the centrosymmetric character of the magnetic ions sublattice.…”

Section: Conclusion and Summarymentioning

confidence: 99%

Possibility of Emergence of Chiral Magnetic Soliton in Hexagonal Metal Formate [NH4][M(HCOO)3] with M2+ = Mn, Fe, Co, and Ni and KCo(HCOO)3

Волкова

Marinin

2016

J Supercond Nov Magn

View full text Add to dashboard Cite

Search of chiral magnetic solitons on the basis of the data on the crystal structure is important from both fundamental and technological points of view. Potential chiral magnetic solitons -hexagonal metal formates [NH 4 ][M(HCOO) 3 ] with M 2+ = Mn, Fe, Co, and Ni and KCo(HCOO) 3 containing dominating left-handed chiral antiferromagnetic helices that compete with interhelix interactions have been identified. The sign and strength of magnetic interactions not only between nearest neighbors, but also for longer-range neighbors in the metal formates have been calculated on the basis of structural data. Magnetic structures of these compounds are similar to that of the chiral magnetic soliton Cr 1/3 NbS 2 . The interrelation between chiral polarization of crystalline and magnetic structures in the metastable polymorph KCo(HCOO) 3 has been demonstrated.

show abstract

“…The strength of a kinetic barrier separating a metastable phase and a stable phase can be altered by changing the pressure and temperature conditions. For some critical pressure and temperature the metastable phase will transform into the stable phase over an experimentally observable timescale [16]. At su ciently elevated temperatures the lifetime of diamond is significantly reduced, to just hours at 1700 K [16].…”

Section: Phase Transitionsmentioning

confidence: 99%

Pressure-induced phase transitions of indium selenide

Rasmussen¹

2016

View full text Add to dashboard Cite

My advisor, Matthew McCluskey, for teaching me how to do physics, from performing experiments to interpreting the results, and for mentoring and encouraging me these last six years. My labmates for assisting in experiments, listening to practice talks, and for providing amusement during long work days. Elham Mafi and Yi Gu for providing the nanowire samples, performing Raman measurements, and contributing to manuscripts. The beamline 12.2.2 team at ALS/LBNL: Martin, Christine, Andrew, and Alistair, for hosting me last year as a doctoral fellow and for their assistance with the XRD experiments. Wenguang Zhu for performing first-principles calculations. Zhongwu Wang at CHESS for assisting with the XRD experiments. My classmates for all the late nights finishing homework, our prelim study sessions, and emotional support. Michele and Kasey, I wouldn't have made it to the end without the two iii of you. My family who have provided support, encouragement, and childcare: Candace (a.k.a. Aunt Candace), Mom (a.k.a. Grandma), Dad (a.k.a. Grandpa), Jill (a.k.a. Grammy), and Abby (a.k.a. ABBY!). My husband, Chris. I am who I am today because of you.

show abstract

Untitled

Cited by 38 publications

References 15 publications

Flux-mediated crystal growth of metal oxides: synthetic tunability of particle morphologies, sizes, and surface features for photocatalysis research

Flux-mediated crystal growth of metal oxides: synthetic tunability of particle morphologies, sizes, and surface features for photocatalysis research

Possibility of Emergence of Chiral Magnetic Soliton in Hexagonal Metal Formate [NH4][M(HCOO)3] with M2+ = Mn, Fe, Co, and Ni and KCo(HCOO)3

Pressure-induced phase transitions of indium selenide

Contact Info

Product

Resources

About