Stewart Barnes

Professor

  • 2869 Citations
1971 …2018
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Research Output 1971 2018

  • 2869 Citations
  • 99 Article
  • 7 Conference contribution
  • 1 Chapter
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8 Citations (Scopus)

8(3) resonance in ESR of (ErY)Al2 single crystals

Döbler, U., Baberschke, K. & Barnes, S., 1983, In : Physical Review B. 27, 11, p. 6593-6607 15 p.

Research output: Contribution to journalArticle

Paramagnetic resonance
Exchange interactions
Single crystals
Impurities
impurities
59 Citations (Scopus)

Absence of excited triplets in the EPR of the high Tc superconductors and the antiferromagnetic insulator CuO

Mehran, F., Barnes, S., Chandrashekhar, G. V., McGuire, T. R. & Shafer, M. W., 1988, In : Solid State Communications. 67, 12, p. 1187-1189 3 p.

Research output: Contribution to journalArticle

Excited states
Superconducting materials
Paramagnetic resonance
insulators
magnetic permeability
1 Citation (Scopus)

Abstract: Crystal field splitting and spin-spin interaction of Eu2+ and Gd3+ in LaAl2 single crystals

Baberschke, K., Barnes, S. & Bachor, B., 1978, In : Journal of Applied Physics. 49, 3, p. 1451 1 p.

Research output: Contribution to journalArticle

crystal field theory
single crystals
interactions
4 Citations (Scopus)

A Jordan-Wigner transformation for the t-J and Hubbard models with holes

Barnes, S. & Maekawa, S., Jan 14 2002, In : Journal of Physics Condensed Matter. 14, 1

Research output: Contribution to journalArticle

Hubbard model
Jordan
Gages
Fluxes
sectors
3 Citations (Scopus)

All-electronic Peierls instability in the infinite-U mean-field theory for the Hubbard model

Barnes, S., 1990, In : Physical Review B. 41, 16, p. 11701-11704 4 p.

Research output: Contribution to journalArticle

Hubbard model
Mean field theory
Charge density waves
electronics
Doping (additives)

Alternative Feynman-diagram method for the general-spin Kondo problem

Barnes, S., 1988, In : Physical Review B. 37, 4, p. 2220-2222 3 p.

Research output: Contribution to journalArticle

Electron scattering
Feynman diagrams
Fermions
conduction electrons
electron scattering
2 Citations (Scopus)

An ESR study of the dynamics of local moments and conduction electrons in ScGd single crystals

Barnes, S., Baberschke, K. & Nagel, J., 1983, In : Journal of Physics F: Metal Physics. 13, 2, p. 347-355 9 p., 010.

Research output: Contribution to journalArticle

conduction electrons
Paramagnetic resonance
Single crystals
Impurities
moments
41 Citations (Scopus)

Anomalous crystal-field splittings of lanthanide S-states in metals

Barnes, S., Baberschke, K. & Hardiman, M., 1978, In : Physical Review B. 18, 6, p. 2409-2421 13 p.

Research output: Contribution to journalArticle

Lanthanoid Series Elements
Rare earth elements
crystal field theory
Metals
Crystals
2 Citations (Scopus)

Application of generalized linear filters in data analysis

Barnes, S., Peter, M., Hoffmann, L., Manuel, A. A. & Shukla, A., Jul 1994, In : Journal of Statistical Physics. 76, 1-2, p. 679-701 23 p.

Research output: Contribution to journalArticle

linear filters
Linear Filter
Data analysis
eigenvalues
Smallest Eigenvalue
4 Citations (Scopus)

Auxiliary particles and Fumi's theorem

Barnes, S., 1999, In : Physica B: Condensed Matter. 259-261, p. 179-180 2 p.

Research output: Contribution to journalArticle

Ground state
theorems
S matrix theory
Scattering
Phase shift

Bi- and tri-layer splittings in a new formulation for the t-J model of cuprates

Barnes, S. & Maekawa, S., May 2003, In : Physica C: Superconductivity and its Applications. 388-389, p. 55-56 2 p.

Research output: Contribution to journalArticle

cuprates
formulations
Fluxes
tubes
5 Citations (Scopus)

Bilayer splitting in overdoped high-Tc cuprates

Barnes, S. & Maekawa, S., Jun 2003, In : Physical Review B - Condensed Matter and Materials Physics. 67, 22, p. 2245131-2245135 5 p., 224513.

Research output: Contribution to journalArticle

Fermi surface
cuprates
Fermi surfaces
condensates
Photoelectron spectroscopy
19 Citations (Scopus)
momentum transfer
domain wall
51 Citations (Scopus)

Comparison of the EPR of the antiferromagnets Y2BaCuO5 and Gd2BaCuO5 and the high Tc superconductors YBa2Cu3O7 and GdBa2Cu3O7

Mehran, F., Barnes, S., Giess, E. A. & McGuire, T. R., Jan 1 1988, In : Solid State Communications. 67, 1, p. 55-59 5 p.

Research output: Contribution to journalArticle

Superconducting materials
Paramagnetic resonance
magnetic permeability
Magnetic susceptibility
electron paramagnetic resonance
34 Citations (Scopus)

Continuous generation of spinmotive force in a patterned ferromagnetic film

Yamane, Y., Sasage, K., An, T., Harii, K., Ohe, J., Ieda, J., Barnes, S., Saitoh, E. & Maekawa, S., Nov 30 2011, In : Physical Review Letters. 107, 23, 236602.

Research output: Contribution to journalArticle

ferromagnetic films
ferromagnetic resonance
thin films
18 Citations (Scopus)

Crystal fields and exchange parameters in LaAl2: Eu2+ and LaAl2: Gd3+ single crystals

Baberschke, K., Bachor, B. & Barnes, S., 1980, In : Physical Review B. 21, 7, p. 2666-2673 8 p.

Research output: Contribution to journalArticle

crystal field theory
Paramagnetic resonance
fine structure
Single crystals
Crystals
226 Citations (Scopus)

Current-spin coupling for ferromagnetic domain walls in fine wires

Barnes, S. & Maekawa, S., Sep 2 2005, In : Physical Review Letters. 95, 10, 107204.

Research output: Contribution to journalArticle

domain wall
wire
conduction electrons
angular momentum
ground state
22 Citations (Scopus)

Depinning of domain walls with an internal degree of freedom

Lecomte, V., Barnes, S., Eckmann, J. P. & Giamarchi, T., Aug 21 2009, In : Physical Review B - Condensed Matter and Materials Physics. 80, 5, 054413.

Research output: Contribution to journalArticle

Domain walls
domain wall
degrees of freedom
Magnetic domains
Nanowires
11 Citations (Scopus)

Derivation of exact results for the single-ion Kondo problem with the use of diagrammatic methods

Barnes, S., 1986, In : Physical Review B. 33, 5, p. 3209-3246 38 p.

Research output: Contribution to journalArticle

derivation
Impurities
Ions
impurities
ions
41 Citations (Scopus)

Diagrammatic analysis of the dynamics of localized moments in metals

Barnes, S. & Zitkova-Wilcox, J., 1973, In : Physical Review B. 7, 5, p. 2163-2192 30 p.

Research output: Contribution to journalArticle

conduction electrons
Metals
moments
Electrons
metals
19 Citations (Scopus)

Direct dynamical coupling of spin modes and singlet Josephson supercurrent in ferromagnetic Josephson junctions

Petković, I., Aprili, M., Barnes, S., Beuneu, F. & Maekawa, S., Dec 3 2009, In : Physical Review B - Condensed Matter and Materials Physics. 80, 22, 220502.

Research output: Contribution to journalArticle

Josephson junctions
Spin waves
magnons
Josephson effect
dissipation
24 Citations (Scopus)

Dynamic EPR susceptibility for the 'ionic' approach to the Anderson model

Barnes, S., 1976, In : Journal of Physics F: Metal Physics. 6, 1, p. 115-130 16 p., 015.

Research output: Contribution to journalArticle

Paramagnetic resonance
magnetic permeability
Impurities
conduction electrons
impurities
25 Citations (Scopus)

Electrical measurements of the polarization in a moving magnetic vortex

Ohe, J. I., Barnes, S., Lee, H. W. & Maekawa, S., 2009, In : Applied Physics Letters. 95, 12, 123110.

Research output: Contribution to journalArticle

electrical measurement
vortices
polarization
Permalloys (trademark)
conduction electrons
123 Citations (Scopus)

Electromotive force and huge magnetoresistance in magnetic tunnel junctions

Hai, P. N., Ohya, S., Tanaka, M., Barnes, S. & Maekawa, S., Mar 26 2009, In : Nature. 458, 7237, p. 489-492 4 p.

Research output: Contribution to journalArticle

Magnetic Fields
Electrons
Equipment and Supplies
Magnets
Nanostructures
1 Citation (Scopus)

Electronic structure of vortices in high Tc superconductors

Barnes, S., 1999, In : International Journal of Modern Physics B. 13, 29-31, p. 3478-3481 4 p.

Research output: Contribution to journalArticle

High-Tc Superconductors
Pseudogap
Bosons
Electronic Structure
Superconducting materials
14 Citations (Scopus)

Electron paramagnetic resonance of Gd3+ in platinum

Hardiman, M., Pellisson, J., Barnes, S., Bisson, P. E. & Peter, M., 1980, In : Physical Review B. 22, 5, p. 2175-2194 20 p.

Research output: Contribution to journalArticle

Platinum
Paramagnetic resonance
electron paramagnetic resonance
platinum
Single crystals
28 Citations (Scopus)

Electron paramagnetic resonance of Gd3+ ions in the superconductor GdBa2Cu3Ox

Mehran, F., Barnes, S., Tsuei, C. C. & McGuire, T. R., 1987, In : Physical Review B. 36, 13, p. 7266-7268 3 p.

Research output: Contribution to journalArticle

Superconducting materials
Paramagnetic resonance
electron paramagnetic resonance
Ions
ions
11 Citations (Scopus)

Electron-spin-resonance modes and the Edwards-Anderson theory of the spin-glass state

Barnes, S., 1981, In : Physical Review Letters. 47, 22, p. 1613-1616 4 p.

Research output: Contribution to journalArticle

spin glass
electron paramagnetic resonance
anisotropy
symmetry
magnetization
5 Citations (Scopus)

Electron spin resonance modes in a spin-glass

Barnes, S., 1981, In : Physica B+C. 108, 1-3, p. 771-772 2 p.

Research output: Contribution to journalArticle

Spin glass
Paramagnetic resonance
Anisotropy
Hamiltonians
Single crystals
14 Citations (Scopus)

Equation-of-motion approach of spin-motive force

Yamane, Y., Ieda, JI., Ohe, J. I., Barnes, S. & Maekawa, S., Apr 1 2011, In : Journal of Applied Physics. 109, 7, 07C735.

Research output: Contribution to journalArticle

equations of motion
magnetization
electromotive forces
misalignment
electron spin
4 Citations (Scopus)

Erratum: Hyperfine splitting in a metal of a localized moment (Journal of Applied Physics (1971) 42 (1659))

Barnes, S., Dupraz, J. & Orbach, R., 1971, In : Journal of Applied Physics. 42, 13, p. 5908 1 p.

Research output: Contribution to journalArticle

moments
physics
metals

Erratum: Continuous generation of spinmotive force in a patterned ferromagnetic film (Physical Review Letters (2011) 107 (236602))

Yamane, Y., Sasage, K., An, T., Harii, K., Ohe, J., Ieda, J., Barnes, S., Saitoh, E. & Maekawa, S., Oct 20 2014, In : Physical Review Letters. 113, 17, 179901.

Research output: Contribution to journalArticle

2 Citations (Scopus)
oscillations
10 Citations (Scopus)

ESR and magnetization of the spin-glass CuMn at low concentrations

Hoekstra, F. R., Nieuwenhuys, G. J., Baberschke, K. & Barnes, S., 1984, In : Physical Review B. 29, 3, p. 1292-1299 8 p.

Research output: Contribution to journalArticle

Spin glass
spin glass
Paramagnetic resonance
low concentrations
Magnetization
1 Citation (Scopus)

ESR in situ with a Josephson tunnel junction

Bures, K. D., Baberschke, K. & Barnes, S., 1986, In : Journal of Magnetism and Magnetic Materials. 54-57, PART 3, p. 1415-1417 3 p.

Research output: Contribution to journalArticle

Tunnel junctions
tunnel junctions
Josephson junctions
crystal field theory
Paramagnetic resonance
15 Citations (Scopus)

ESR in situ with a Josephson tunnel junction

Baberschke, K., Bures, K. D. & Barnes, S., 1984, In : Physical Review Letters. 53, 1, p. 98-101 4 p.

Research output: Contribution to journalArticle

tunnel junctions
Josephson junctions
crystal field theory
electron paramagnetic resonance
spectrometers
2 Citations (Scopus)

ESR of Eu2+: LaAl2 single crystals: Crystal fields and the effective exchange interaction

Baberschke, K., Barnes, S. & Bachor, B., 1980, In : Journal of Magnetism and Magnetic Materials. 15-18, PART 2, p. 733-734 2 p.

Research output: Contribution to journalArticle

Exchange interactions
crystal field theory
Paramagnetic resonance
fine structure
Single crystals
8 Citations (Scopus)

ESR relaxation in spin glasses

Barnes, S., 1984, In : Physical Review B. 30, 7, p. 3944-3950 7 p.

Research output: Contribution to journalArticle

Spin glass
spin glass
Paramagnetic resonance
cusps
divergence
20 Citations (Scopus)

Evidence for a magnetic seebeck effect

Brechet, S. D., Vetro, F. A., Papa, E., Barnes, S. & Ansermet, J. P., Aug 22 2013, In : Physical Review Letters. 111, 8, 087205.

Research output: Contribution to journalArticle

Seebeck effect
magnetic induction
magnetization
temperature gradients
magnetic dipoles
5 Citations (Scopus)

Excitations in a nearly half-filled Hubbard model with U=

Barnes, S., 1989, In : Physical Review B. 40, 1, p. 723-726 4 p.

Research output: Contribution to journalArticle

Hubbard model
Bosons
elementary excitations
excitation
divergence
4 Citations (Scopus)

Experimental investigation of the magnetic behavior of superconducting- normal-superconducting Josephson junctions

Bures, K., Barnes, S. & Baberschke, K., 1983, In : Journal of Applied Physics. 54, 12, p. 7073-7077 5 p.

Research output: Contribution to journalArticle

Josephson junctions
current density
high current
electric potential
Josephson effect
7 Citations (Scopus)

Ferromagnetic resonance with a magnetic Josephson junction

Barnes, S., Aprili, M., Petković, I. & Maekawa, S., 2011, In : Superconductor Science and Technology. 24, 2, 024020.

Research output: Contribution to journalArticle

Ferromagnetic resonance
Spin waves
Magnetic resonance
ferromagnetic resonance
Josephson junctions
56 Citations (Scopus)

Fine-structure splitting of a localized moment in a metal: A diagrammatic analysis

Barnes, S., 1974, In : Physical Review B. 9, 11, p. 4789-4807 19 p.

Research output: Contribution to journalArticle

Metals
fine structure
moments
Hamiltonians
Fermions
2 Citations (Scopus)

Flux states for the infinite-U limit of the Hubbard model

Barnes, S., 1991, In : Physical Review B. 44, 2, p. 801-804 4 p.

Research output: Contribution to journalArticle

Hubbard model
Fluxes
Doping (additives)
Magnetic flux
two dimensional models
180 Citations (Scopus)

Generalization of Faraday's law to include nonconservative spin forces

Barnes, S. & Maekawa, S., Jun 15 2007, In : Physical Review Letters. 98, 24, 246601.

Research output: Contribution to journalArticle

electromotive forces
ferromagnetic materials
energy conservation
electron spin
magnetic flux
8 Citations (Scopus)

Generalization of the drone fermion method

Barnes, S., 1972, In : Journal of Physics C: Solid State Physics. 5, 14, 002.

Research output: Contribution to journalArticle

Fermions
fermions
Decomposition
addition theorem
half spaces
10 Citations (Scopus)

Holon statistics

Barnes, S., 1989, In : Journal of Physics Condensed Matter. 1, 12, p. 2293-2296 4 p., 015.

Research output: Contribution to journalArticle

Mean field theory
Superconductivity
Condensation
superconductivity
condensation
21 Citations (Scopus)

Hyperfine splitting in a metal of a localized moment

Barnes, S., Dupraz, J. & Orbach, R., 1971, In : Journal of Applied Physics. 42, 4, p. 1659-1665 7 p.

Research output: Contribution to journalArticle

moments
metals
nuclear spin
rare earth alloys
magnetic permeability
1 Citation (Scopus)

Implications of Fumi's theorem for auxiliary particle methods

Barnes, S., 1995, In : Physical Review B. 51, 15, p. 10213-10216 4 p.

Research output: Contribution to journalArticle

Kondo effect
theorems
Scattering
Impurities
impurities