If you made any changes in Pure, your changes will be visible here soon.

Research Output 1979 2019

Filter
Article
2019

Direct Conversion of Heat to Electricity Using First-Order Phase Transformations in Ferroelectrics

Bucsek, A., Nunn, W., Jalan, B. & James, R. D., Sep 23 2019, In : Physical Review Applied. 12, 3, 034043.

Research output: Contribution to journalArticle

energy conversion
electricity
phase transformations
Carnot cycle
waste heat

Long-Time Asymptotics for Homoenergetic Solutions of the Boltzmann Equation: Collision-Dominated Case

James, R. D., Nota, A. & Velázquez, J. J. L., Oct 1 2019, In : Journal of Nonlinear Science. 29, 5, p. 1943-1973 31 p.

Research output: Contribution to journalArticle

Long-time Asymptotics
Boltzmann equation
Boltzmann Equation
Collision
Term
1 Citation (Scopus)

Materials from mathematics

James, R. D., Jan 1 2019, In : Bulletin of the American Mathematical Society. 56, 1, p. 1-28 28 p.

Research output: Contribution to journalArticle

Electricity
Compatibility
Heat
Generator
Hot Temperature
1 Citation (Scopus)

Micromagnetics of Galfenol

Dabade, V., Venkatraman, R. & James, R. D., Apr 15 2019, In : Journal of Nonlinear Science. 29, 2, p. 415-460 46 p.

Research output: Contribution to journalArticle

Micromagnetics
Microstructure
Magnetostriction
Energy
Magnetization
3 Citations (Scopus)

Novel TiNiCuNb shape memory alloys with excellent thermal cycling stability

Tong, Y., Gu, H., James, R. D., Qi, W., Shuitcev, A. V. & Li, L., Apr 25 2019, In : Journal of Alloys and Compounds. 782, p. 343-347 5 p.

Research output: Contribution to journalArticle

Martensitic transformations
Thermal cycling
Shape memory effect
Doping (additives)
Yield stress

Phase transformations and compatibility in helical structures

Feng, F., Plucinsky, P. & James, R. D., Oct 1 2019, In : Journal of the Mechanics and Physics of Solids. 131, p. 74-95 22 p.

Research output: Contribution to journalArticle

compatibility
phase transformations
Hysteresis
Phase transitions
hysteresis
3 Citations (Scopus)

Self-Similar Profiles for Homoenergetic Solutions of the Boltzmann Equation: Particle Velocity Distribution and Entropy

James, R. D., Nota, A. & Velázquez, J. J. L., Feb 7 2019, In : Archive For Rational Mechanics And Analysis. 231, 2, p. 787-843 57 p.

Research output: Contribution to journalArticle

Boltzmann equation
Velocity Distribution
Velocity distribution
Boltzmann Equation
Entropy

Tuning crystallographic compatibility to enhance shape memory in ceramics

Jetter, J., Gu, H., Zhang, H., Wuttig, M., Chen, X., Greer, J. R., James, R. D. & Quandt, E., Sep 23 2019, In : Physical Review Materials. 3, 9, 093603.

Research output: Contribution to journalArticle

Shape memory effect
compatibility
Tuning
tuning
ceramics
2018
10 Citations (Scopus)

Engineering SrSnO 3 Phases and Electron Mobility at Room Temperature Using Epitaxial Strain

Wang, T., Prakash, A., Dong, Y., Truttmann, T., Bucsek, A., James, R., Fong, D. D., Kim, J. W., Ryan, P. J., Zhou, H., Birol, T. & Jalan, B., Dec 19 2018, In : ACS Applied Materials and Interfaces. 10, 50, p. 43802-43808 7 p.

Research output: Contribution to journalArticle

Electron mobility
Temperature
Electronic equipment
Oxides
Epitaxial films
2016
4 Citations (Scopus)

Bragg-von Laue diffraction generalized to twisted X-rays

Jüstel, D., Friesecke, G. & James, R. D., Jan 1 2016, In : Acta Crystallographica Section A: Foundations and Advances. 72, p. 190-196 7 p.

Research output: Contribution to journalArticle

Diffraction
X-Rays
X rays
Carbon Nanotubes
Maxwell equations
19 Citations (Scopus)

Determination of the stretch tensor for structural transformations

Chen, X., Song, Y., Tamura, N. & James, R. D., Aug 1 2016, In : Journal of the Mechanics and Physics of Solids. 93, p. 34-43 10 p.

Research output: Contribution to journalArticle

Tensors
tensors
Phase transitions
phase transformations
Lattice constants
6 Citations (Scopus)

Directional-dependent thickness and bending rigidity of phosphorene

Verma, D., Hourahine, B., Frauenheim, T., James, R. D. & DumitricǍ, T., Sep 13 2016, In : Physical Review B. 94, 12, 121404.

Research output: Contribution to journalArticle

Nanomechanics
Orthotropic plates
Graphite
rigidity
Rigidity
11 Citations (Scopus)

Exceptional Resilience of Small-Scale Au30Cu25Zn45 under Cyclic Stress-Induced Phase Transformation

Ni, X., Greer, J. R., Bhattacharya, K., James, R. D. & Chen, X., Dec 14 2016, In : Nano Letters. 16, 12, p. 7621-7625 5 p.

Research output: Contribution to journalArticle

resilience
phase transformations
Phase transitions
Microactuators
actuation
8 Citations (Scopus)

In-situ characterization of highly reversible phase transformation by synchrotron X-ray Laue microdiffraction

Chen, X., Tamura, N., Macdowell, A. & James, R. D., May 23 2016, In : Applied Physics Letters. 108, 21, 211902.

Research output: Contribution to journalArticle

phase transformations
synchrotrons
x rays
austenite
martensite
1 Citation (Scopus)

Magnetic-field-induced changes in superparamagnetic cluster dynamics in the martensitic phase of Ni 43 Co 7 Mn 40 Sn 10

Kuhns, P. L., Hoch, M. J. R., Yuan, S., Reyes, A. P., Srivastava, V., James, R. D. & Leighton, C., Jun 20 2016, In : Applied Physics Letters. 108, 25, 252403.

Research output: Contribution to journalArticle

nuclear magnetic resonance
magnetic fields
magnetic properties
nanoclusters
relaxation time
6 Citations (Scopus)

Phase separation and superparamagnetism in the martensitic phase of N i50-x C ox M n40 S n10

Yuan, S., Kuhns, P. L., Reyes, A. P., Brooks, J. S., Hoch, M. J. R., Srivastava, V., James, R. D. & Leighton, C., Mar 21 2016, In : Physical Review B. 93, 9, 094425.

Research output: Contribution to journalArticle

Superparamagnetism
Phase separation
Magnetic separation
Magnetic structure
Magnetism
14 Citations (Scopus)

Synthesis of α′′-Fe16 N2 Compound Anisotropic Magnet by the Strained-Wire Method

Jiang, Y., Dabade, V., Allard, L. F., Lara-Curzio, E., James, R. D. & Wang, J., Aug 18 2016, In : Physical Review Applied. 6, 2, 024013.

Research output: Contribution to journalArticle

magnets
wire
synthesis
tensile stress
permanent magnets
1 Citation (Scopus)

Twisted X-Rays: Incoming waveforms yielding discrete diffraction patterns for helical structures

Friesecke, G., James, R. D. & Jüstel, D., Jan 1 2016, In : SIAM Journal on Applied Mathematics. 76, 3, p. 1191-1218 28 p.

Research output: Contribution to journalArticle

Waveform
Diffraction patterns
Diffraction
X rays
Symmetry
4 Citations (Scopus)

Zig-zag twins and helical phase transformations

Ganor, Y., DumitricǍ, T., Feng, F. & James, R. D., Apr 28 2016, In : Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 374, 2066, 20150208.

Research output: Contribution to journalArticle

Zigzag
Phase Transformation
martensite
Martensite
phase transformations
2015
10 Citations (Scopus)

A spectral scheme for Kohn-Sham density functional theory of clusters

Banerjee, A. S., Elliott, R. S. & James, R. D., Apr 5 2015, In : Journal of Computational Physics. 287, p. 226-253 28 p.

Research output: Contribution to journalArticle

Density functional theory
density functional theory
spectral methods
Electronic structure
eigenvectors
7 Citations (Scopus)

Incompatible Sets of Gradients and Metastability

Ball, J. M. & James, R. D., Dec 30 2015, In : Archive For Rational Mechanics And Analysis. 218, 3, p. 1363-1416 54 p.

Research output: Contribution to journalArticle

Metastability
Metastable phases
Free energy
Hysteresis
Gradient
9 Citations (Scopus)

Magnetically nanostructured state in a Ni-Mn-Sn shape-memory alloy

Yuan, S., Kuhns, P. L., Reyes, A. P., Brooks, J. S., Hoch, M. J. R., Srivastava, V., James, R. D., El-Khatib, S. & Leighton, C., Jun 16 2015, In : Physical Review B - Condensed Matter and Materials Physics. 91, 21, 214421.

Research output: Contribution to journalArticle

F region
shape memory alloys
Shape memory effect
magnetic properties
nuclear relaxation
11 Citations (Scopus)

Taming the temperamental metal transformation

James, R. D., May 29 2015, In : Science. 348, 6238, p. 968-969 2 p.

Research output: Contribution to journalArticle

metal
2014
9 Citations (Scopus)

9 T high magnetic field annealing effects on FeN bulk sample

Jiang, Y., Dabade, V., Brady, M. P., Rios, O., James, R. D. & Wang, J., May 7 2014, In : Journal of Applied Physics. 115, 17, 17A758.

Research output: Contribution to journalArticle

rods
annealing
magnetic fields
coercivity
phase transformations
7 Citations (Scopus)

Microstructural dependence on middle eigenvalue in TiNiAu

Shi, H., Delville, R., Srivastava, V., James, R. D. & Schryvers, D., Jan 1 2014, In : Journal of Alloys and Compounds. 582, p. 703-707 5 p.

Research output: Contribution to journalArticle

Martensite
Gold Compounds
Microstructure
Lamellar structures
Austenite
20 Citations (Scopus)

Tight-binding theory of graphene bending

Nikiforov, I. A., Dontsova, E., James, R. D. & Dumitrica, T., Apr 30 2014, In : Physical Review B - Condensed Matter and Materials Physics. 89, 15, 155437.

Research output: Contribution to journalArticle

Graphite
Graphene
graphene
Molecular orbitals
Single-walled carbon nanotubes (SWCN)
2013
151 Citations (Scopus)

Enhanced reversibility and unusual microstructure of a phase-transforming material

Song, Y., Chen, X., Dabade, V., Shield, T. W. & James, R. D., Oct 21 2013, In : Nature. 502, 7469, p. 85-88 4 p.

Research output: Contribution to journalArticle

Temperature
Hot Temperature
Equipment and Supplies
Martensite
15 Citations (Scopus)

Ferromagnetic shape memory flapper for remotely actuated propulsion systems

Kanner, O. Y., Shilo, D., Sheng, J., James, R. D. & Ganor, Y., Aug 1 2013, In : Smart Materials and Structures. 22, 8, 085030.

Research output: Contribution to journalArticle

propulsion
Shape memory effect
Propulsion
Reynolds number
Magnetic fields
54 Citations (Scopus)

Study of the cofactor conditions: Conditions of supercompatibility between phases

Chen, X., Srivastava, V., Dabade, V. & James, R. D., Jan 1 2013, In : Journal of the Mechanics and Physics of Solids. 61, 12, p. 2566-2587 22 p.

Research output: Contribution to journalArticle

Martensite
Austenite
martensite
transition layers
Tensors
26 Citations (Scopus)

Thermodynamics of energy conversion via first order phase transformation in low hysteresis magnetic materials

Song, Y., Bhatti, K. P., Srivastava, V., Leighton, C. & James, R. D., Jan 1 2013, In : Energy and Environmental Science. 6, 4, p. 1315-1327 13 p.

Research output: Contribution to journalArticle

Magnetic materials
hysteresis
Energy conversion
Hysteresis
thermodynamics
2012
6 Citations (Scopus)

Design of viscometers corresponding to a universal molecular simulation method

Dayal, K. & James, R. D., Jan 25 2012, In : Journal of Fluid Mechanics. 691, p. 461-486 26 p.

Research output: Contribution to journalArticle

viscometers
Viscometers
Conceptual design
Fluids
simulation
7 Citations (Scopus)

Objective quasicontinuum approach for rod problems

Hakobyan, Y., Tadmor, E. B. & James, R. D., Dec 28 2012, In : Physical Review B - Condensed Matter and Materials Physics. 86, 24, 245435.

Research output: Contribution to journalArticle

rods
Atoms
atoms
contraction
Single crystals
45 Citations (Scopus)
Neutron scattering
phase transformations
Magnetization
inhomogeneity
neutron scattering
2011
9 Citations (Scopus)

A weak compatibility condition for precipitation with application to the microstructure of PbTe-Sb2Te3 thermoelectrics

Chen, X., Cao, S., Ikeda, T., Srivastava, V., Jeffrey Snyder, G., Schryvers, D. & James, R. D., Sep 1 2011, In : Acta Materialia. 59, 15, p. 6124-6132 9 p.

Research output: Contribution to journalArticle

Precipitates
Microstructure
Interfacial energy
Cones
Focused ion beams
8 Citations (Scopus)

Martensite transformation of epitaxial Ni-Ti films

Buschbeck, J., Kawasaki, J. K., Kozhanov, A., James, R. D. & Palmstrom, C., May 9 2011, In : Applied Physics Letters. 98, 19, 191901.

Research output: Contribution to journalArticle

martensite
phase transformations
shape memory alloys
x ray diffraction
molecular beam epitaxy
98 Citations (Scopus)

The direct conversion of heat to electricity using multiferroic alloys

Srivastava, V., Song, Y., Bhatti, K. & James, R. D., Jan 1 2011, In : Advanced Energy Materials. 1, 1, p. 97-104 8 p.

Research output: Contribution to journalArticle

Electricity
Hysteresis
Phase transitions
Heating
Magnetic moments
2010
112 Citations (Scopus)

Hysteresis and unusual magnetic properties in the singular Heusler alloy Ni45 Co5 Mn40 Sn10

Srivastava, V., Chen, X. & James, R. D., Jul 5 2010, In : Applied Physics Letters. 97, 1, 014101.

Research output: Contribution to journalArticle

hysteresis
magnetic properties
magnetization
energy conversion
austenite
177 Citations (Scopus)

Identification of quaternary shape memory alloys with near-zero thermal hysteresis and unprecedented functional stability

Zarnetta, R., Takahashi, R., Young, M. L., Savan, A., Furuya, Y., Thienhaus, S., Maaß, B., Rahim, M., Frenzel, J., Brunken, H., Chu, Y. S., Srivastava, V., James, R. D., Takeuchi, I., Eggeler, G. & Ludwig, A., Jun 23 2010, In : Advanced Functional Materials. 20, 12, p. 1917-1923 7 p.

Research output: Contribution to journalArticle

quaternary alloys
shape memory alloys
Shape memory effect
Hysteresis
hysteresis
19 Citations (Scopus)

Nonequilibrium molecular dynamics for bulk materials and nanostructures

Dayal, K. & James, R. D., Feb 1 2010, In : Journal of the Mechanics and Physics of Solids. 58, 2, p. 145-163 19 p.

Research output: Contribution to journalArticle

Molecular dynamics
Nanostructures
molecular dynamics
Strain rate
strain rate
75 Citations (Scopus)

Transmission electron microscopy study of phase compatibility in low hysteresis shape memory alloys

Delville, R., Kasinathan, S., Zhang, Z., Humbeeck, J. V., James, R. D. & Schryvers, D., Jan 1 2010, In : Philosophical Magazine. 90, 1-4, p. 177-195 19 p.

Research output: Contribution to journalArticle

shape memory alloys
Shape memory effect
compatibility
Hysteresis
hysteresis
46 Citations (Scopus)

Wavelike rippling in multiwalled carbon nanotubes under pure bending

Nikiforov, I. A., Zhang, D. B., James, R. D. & Dumitric̀, T., Apr 7 2010, In : Applied Physics Letters. 96, 12, 123107.

Research output: Contribution to journalArticle

carbon nanotubes
tubes
elastic bending
stiffness
molecular dynamics
2009
29 Citations (Scopus)

Dislocation onset and nearly axial glide in carbon nanotubes under torsion

Zhang, D. B., James, R. D. & Dumitrič, T., Feb 27 2009, In : Journal of Chemical Physics. 130, 7, 071101.

Research output: Contribution to journalArticle

Carbon Nanotubes
plastic properties
Torsional stress
torsion
Plasticity
42 Citations (Scopus)
Carbon Nanotubes
Torsional stress
torsion
Molecular dynamics
Carbon nanotubes
132 Citations (Scopus)

Energy barriers and hysteresis in martensitic phase transformations

Zhang, Z., James, R. D. & Müller, S., Sep 1 2009, In : Acta Materialia. 57, 15, p. 4332-4352 21 p.

Research output: Contribution to journalArticle

Energy barriers
Hysteresis
Phase transitions
Chemical analysis
Martensite
59 Citations (Scopus)

Transmission electron microscopy investigation of microstructures in low-hysteresis alloys with special lattice parameters

Delville, R., Schryvers, D., Zhang, Z. & James, R. D., Mar 1 2009, In : Scripta Materialia. 60, 5, p. 293-296 4 p.

Research output: Contribution to journalArticle

martensite
Martensite
Lattice constants
Hysteresis
lattice parameters
2008
27 Citations (Scopus)

Breaching the work output limitation of ferromagnetic shape memory alloys

Ganor, Y., Shilo, D., Shield, T. W. & James, R. D., Oct 6 2008, In : Applied Physics Letters. 93, 12, 122509.

Research output: Contribution to journalArticle

shape memory alloys
output
physical properties
actuators
magnetization
2007
74 Citations (Scopus)

Objective molecular dynamics

Dumitrica, T. & James, R. D., Oct 1 2007, In : Journal of the Mechanics and Physics of Solids. 55, 10, p. 2206-2236 31 p.

Research output: Contribution to journalArticle

Molecular dynamics
molecular dynamics
Carbon nanotubes
carbon nanotubes
Atoms
25 Citations (Scopus)
inclusions
microstructure
Microstructure
matrices
ellipsoids
12 Citations (Scopus)

Testing system for ferromagnetic shape memory microactuators

Ganor, Y., Shilo, D., Messier, J., Shield, T. W. & James, R. D., Aug 7 2007, In : Review of Scientific Instruments. 78, 7, 073907.

Research output: Contribution to journalArticle

Microactuators
Shape memory effect
Magnetic fields
Testing
magnetic fields
2006
221 Citations (Scopus)

A hierarchy of plate models derived from nonlinear elasticity by gamma-convergence

Friesecke, G., James, R. D. & Müller, S., May 1 2006, In : Archive for Rational Mechanics and Analysis. 180, 2, p. 183-236 54 p.

Research output: Contribution to journalArticle

Gamma Convergence
Nonlinear Elasticity
Elasticity
Rigidity
Derivatives