Stewart Barnes

Professor

  • 2872 Citations
1971 …2018
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Research Output 1971 2018

  • 2872 Citations
  • 99 Article
  • 7 Conference contribution
  • 1 Chapter
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Article
4 Citations (Scopus)
spin glass
ground state
magnons
anisotropy
energy

Intermediate spin, schrödinger cat states, and nanomagnets

Barnes, S., Sep 28 2001, In : Physical Review Letters. 87, 16

Research output: Contribution to journalArticle

cats
magnetic effects
magnets
magnetic fields
6 Citations (Scopus)

Intermediate spin, Schrödinger cat states, and nanomagnets

Barnes, S., Oct 15 2001, In : Physical Review Letters. 87, 16, 167201.

Research output: Contribution to journalArticle

cats
8 Citations (Scopus)

Intermediate spin and certain small magnets

Barnes, S., Sep 28 1998, In : Journal of Physics Condensed Matter. 10, 38

Research output: Contribution to journalArticle

Magnets
Demonstrations
magnets
integers
examination
5 Citations (Scopus)

Local excitation of magnetostatic modes in YIG

Papa, E., Barnes, S. & Ansermet, J. P., 2013, In : IEEE Transactions on Magnetics. 49, 3, p. 1055-1059 5 p., 6466525.

Research output: Contribution to journalArticle

Yttrium
Magnetostatics
Garnets
Iron
Resonant circuits

Localizing pseudopotential for local moments and certain virtual bound states

Barnes, S., 1977, In : Physical Review B. 16, 10, p. 4378-4381 4 p.

Research output: Contribution to journalArticle

pseudopotentials
moments
1 Citation (Scopus)

Magnetic anisotropy by rashba spin–orbit coupling in antiferromagnetic thin films

Ieda, J., Barnes, S. & Maekawa, S., Jan 1 2018, In : Journal of the Physical Society of Japan. 87, 5, 053703.

Research output: Contribution to journalArticle

anisotropy
thin films
broken symmetry
inversions
atomic force microscopy
51 Citations (Scopus)

Magnetic memory and current amplification devices using moving domain walls

Barnes, S., Ieda, J. & Maekawa, S., 2006, In : Applied Physics Letters. 89, 12, 122507.

Research output: Contribution to journalArticle

magnetic storage
electromotive forces
domain wall
magnetic circuits
logic circuits
31 Citations (Scopus)

Magnetic resonance in the spin-glass (LaGd)Al2

Zomack, M., Baberschke, K. & Barnes, S., 1983, In : Physical Review B. 27, 7, p. 4135-4148 14 p.

Research output: Contribution to journalArticle

Spin glass
Magnetic resonance
spin glass
magnetic resonance
magnetic permeability

Microscopic formulation for a Josephson array

Barnes, S., 1984, In : Journal of Physics F: Metal Physics. 14, 8, p. 1923-1930 8 p., 021.

Research output: Contribution to journalArticle

Free energy
free energy
formulations
Feynman diagrams
Ground state
7 Citations (Scopus)

New auxiliary particle method for the Hubbard, t-J and Heisenberg models

Vacaru, D. & Barnes, S., 1994, In : Journal of Physics Condensed Matter. 6, 3, p. 719-728 10 p.

Research output: Contribution to journalArticle

Hamiltonians
Ground state
perturbation theory
ground state
Green's function
2 Citations (Scopus)

New exact diagram approach to the Kondo problem

Barnes, S., 1986, In : Journal of Magnetism and Magnetic Materials. 54-57, PART 3, p. 1243-1244 2 p.

Research output: Contribution to journalArticle

Feynman diagrams
Specific heat
Physics
diagrams
specific heat
427 Citations (Scopus)

New method for the Anderson model

Barnes, S., 1976, In : Journal of Physics F: Metal Physics. 6, 7, p. 1375-1383 9 p., 018.

Research output: Contribution to journalArticle

diagrams
Impurities
magnetic permeability
impurities
propagation
147 Citations (Scopus)

New method for the Anderson model. II. the U=0 limit

Barnes, S., 1977, In : Journal of Physics F: Metal Physics. 7, 12, p. 2637-2647 11 p., 022.

Research output: Contribution to journalArticle

expansion
4 Citations (Scopus)

Noise and topology in driven systems - An application to interface dynamics

Barnes, S., Eckmann, J. P., Giamarchi, T. & Lecomte, V., May 2012, In : Nonlinearity. 25, 5, p. 1427-1441 15 p.

Research output: Contribution to journalArticle

Interface Dynamics
Orbits
topology
Topology
Phase Space
69 Citations (Scopus)

Non-mean-field interpretation of the irreversibility line in spin-glasses

Malozemoff, A. P., Barnes, S. & Barbara, B., 1983, In : Physical Review Letters. 51, 18, p. 1704-1707 4 p.

Research output: Contribution to journalArticle

spin glass
crossovers
magnetic permeability
exponents
scaling
1 Citation (Scopus)

Nonuniversality in the Kondo effect

Naghashpour, M. & Barnes, S., 1992, In : Physical Review Letters. 69, 26, p. 3824-3826 3 p.

Research output: Contribution to journalArticle

Kondo effect
perturbation
magnetization
expansion
38 Citations (Scopus)

Observation by electron spin resonance of a pseudo-cubic site in YBa2Cu3O7-x.

Mehran, F., Barnes, S., McGuire, T. R., Dinger, T. R., Kaiser, D. L. & Holtzberg, F., 1988, In : Solid State Communications. 66, 3, p. 299-302 4 p.

Research output: Contribution to journalArticle

Paramagnetic resonance
electron paramagnetic resonance
Single crystals
Linewidth
Superconducting materials
4 Citations (Scopus)

Observation of Al2O3: Cr3+ magnetic resonance via solitons in long Josephson junctions

Mehran, F., Barnes, S., Chi, C. C., Sandstrom, R. L. & Umbach, C. P., 1987, In : Physical Review B. 36, 13, p. 7281-7284 4 p.

Research output: Contribution to journalArticle

Magnetic resonance
Solitons
Josephson junctions
Paramagnetic resonance
magnetic resonance

On the asymmetry in the Kondo susceptibility

Barnes, S., 1976, In : Journal of Physics F: Metal Physics. 6, 6, 005.

Research output: Contribution to journalArticle

asymmetry
magnetic permeability
16 Citations (Scopus)

On the field dependence of the spin glass susceptibility peak

Barbara, B., Malozemoff, A. P. & Barnes, S., 1984, In : Journal of Applied Physics. 55, 6, p. 1655-1657 3 p.

Research output: Contribution to journalArticle

spin glass
magnetic permeability
cusps
temperature
74 Citations (Scopus)

Paramagnetic resonance of Cu2+ ions in the superconductor Y0.2Ba0.8CuOx

Mehran, F., Barnes, S., McGuire, T. R., Gallagher, W. J., Sandstrom, R. L., Dinger, T. R. & Chance, D. A., 1987, In : Physical Review B. 36, 1, p. 740-742 3 p.

Research output: Contribution to journalArticle

paramagnetic resonance
Superconducting materials
Paramagnetic resonance
Ions
ions
13 Citations (Scopus)

Quantum coherence in small antiferromagnets

Barnes, S., Ballou, R., Barbara, B. & Strelen, J., 1997, In : Physical Review Letters. 79, 2, p. 289-292 4 p.

Research output: Contribution to journalArticle

degrees of freedom
integers
tunnels
parity
92 Citations (Scopus)

Rashba Spin-Orbit Anisotropy and the Electric Field Control of Magnetism

Barnes, S., Ieda, JI. & Maekawa, S., Feb 17 2014, In : Scientific Reports. 4, p. 1-5 5 p., 4105.

Research output: Contribution to journalArticle

orbits
anisotropy
electric fields
conduction electrons
magnets
Kondo effect
Superconductivity
Superconducting materials
divergence
superconductivity
16 Citations (Scopus)

Scaling approach to spin-glass phenomena

Barnes, S., Malozemoff, A. P. & Barbara, B., 1984, In : Physical Review B. 30, 5, p. 2765-2768 4 p.

Research output: Contribution to journalArticle

Spin glass
Freezing
spin glass
Free energy
scaling
8 Citations (Scopus)

Solution of the Kondo problem by diagrammatic methods

Barnes, S., 1985, In : Physical Review Letters. 55, 20, p. 2192-2195 4 p.

Research output: Contribution to journalArticle

scaling
approximation
4 Citations (Scopus)
Josephson junctions
Superconducting materials
Spectroscopy
Impurities
impurities
1 Citation (Scopus)

Spin-disordered ground state for a nearly half-filled Hubbard model

Barnes, S., 1990, In : Physical Review B. 41, 13, p. 8991-9002 12 p.

Research output: Contribution to journalArticle

Hubbard model
Ground state
Bosons
Spin waves
magnons
34 Citations (Scopus)

Spin-motive force due to a gyrating magnetic vortex

Tanabe, K., Chiba, D., Ohe, J., Kasai, S., Kohno, H., Barnes, S., Maekawa, S., Kobayashi, K. & Ono, T., 2012, In : Nature Communications. 3, 845.

Research output: Contribution to journalArticle

Electromotive force
Magnetic flux
Vortex flow
Observation
vortices
7 Citations (Scopus)

Spinmotive force due to intrinsic energy of ferromagnetic nanowires

Yamane, Y., Ieda, J., Ohe, J. I., Barnes, S. & Maekawa, S., Sep 2011, In : Applied Physics Express. 4, 9, 093003.

Research output: Contribution to journalArticle

Domain walls
Nanowires
domain wall
nanowires
electric power
3 Citations (Scopus)

Spin motive forces, "measurements", and spin-valves

Barnes, S., Mar 2007, In : Journal of Magnetism and Magnetic Materials. 310, 2 SUPPL. PART 3, p. 2035-2037 3 p.

Research output: Contribution to journalArticle

Force measurement
Magnetization
Torque
torque
Experiments
11 Citations (Scopus)

Spin waves in a spin glass

Barnes, S., 1981, In : Journal of Physics F: Metal Physics. 11, 10, 004.

Research output: Contribution to journalArticle

Spin waves
Spin glass
spin glass
magnons
Anisotropy
23 Citations (Scopus)

The effect that finite lattice spacing has upon the ESR Bloch equations

Barnes, S., 1974, In : Journal of Physics F: Metal Physics. 4, 9, p. 1535-1551 17 p., 024.

Research output: Contribution to journalArticle

Paramagnetic resonance
spacing
Electrons
conduction electrons
moments

The ground state of the kagomé lattice - a new auxiliary particle approach

Barnes, S., 1996, In : Czechoslovak Journal of Physics. 46, SUPPL. 4, p. 1907-1908 2 p.

Research output: Contribution to journalArticle

broken symmetry
perturbation theory
dimers
ground state
energy
12 Citations (Scopus)

The Kondo effect in the dynamics of localized moments in metals

Barnes, S., 1976, In : Journal of Physics F: Metal Physics. 6, 9, p. 1713-1722 10 p., 016.

Research output: Contribution to journalArticle

Kondo effect
Paramagnetic resonance
Metals
Impurities
Ions
1 Citation (Scopus)

The mixed state of superlattice of superconducting sheets

Barnes, S., 1992, In : Journal of Physics Condensed Matter. 4, 16, p. 4135-4147 13 p., 014.

Research output: Contribution to journalArticle

Superlattices
Screening
cuprates
superlattices
Cuprate superconductors
335 Citations (Scopus)

Theory of electron spin resonance of magnetic ions in metals

Barnes, S., Jan 1 1981, In : Advances in Physics. 30, 6, p. 801-938 138 p.

Research output: Contribution to journalArticle

electron paramagnetic resonance
Kondo effect
metals
crystal field theory
ions
8 Citations (Scopus)

Theory of in situ measurement of wave-vector-dependent dynamic susceptibility and ESR spectroscopy using the ac Josephson effect

Barnes, S. & Mehran, F., 1986, In : Physical Review B. 34, 7, p. 4537-4551 15 p.

Research output: Contribution to journalArticle

Electron spin resonance spectroscopy
Josephson effect
in situ measurement
electron paramagnetic resonance
Superconducting materials
60 Citations (Scopus)

Theory of Josephson-type oscillations in a moving charge-density wave

Barnes, S. & Zawadowski, A., 1983, In : Physical Review Letters. 51, 11, p. 1003-1006 4 p.

Research output: Contribution to journalArticle

oscillations
wave scattering
narrowband
impurities
scattering
2 Citations (Scopus)

Theory of magnetic structure determination for small ferromagnets

Preda, M. & Barnes, S., Apr 15 1999, In : Journal of Applied Physics. 85, 8 II B, p. 5630-5632 3 p.

Research output: Contribution to journalArticle

harmonic oscillation
ground state
tunnels
formalism
nanoparticles
10 Citations (Scopus)

Theory of positron annihilation in superconductors

Barnes, S. & Peter, M., 1989, In : Physical Review B. 40, 16, p. 10958-10962 5 p.

Research output: Contribution to journalArticle

Positron annihilation
Positrons
positron annihilation
Superconducting materials
positrons
3 Citations (Scopus)

Theory of positron annihilation in the spinon-holon picture

Barnes, S., 1991, In : Journal of Physics and Chemistry of Solids. 52, 11-12, p. 1525-1533 9 p.

Research output: Contribution to journalArticle

Positron annihilation
positron annihilation
Ground state
ground state
degrees of freedom
8 Citations (Scopus)

Theory of the Jahn-Teller-Kondo effect

Barnes, S., 1988, In : Physical Review B. 37, 7, p. 3671-3674 4 p.

Research output: Contribution to journalArticle

Kondo effect
Ground state
Ions
orbitals
ground state
3 Citations (Scopus)

The possibility of flux flow spectroscopy

Barnes, S., Cohn, J. & Zuo, F., 1996, In : Physical Review Letters. 77, 15, p. 3252-3255 4 p.

Research output: Contribution to journalArticle

magnetic materials
spectroscopy
oxides
probes
excitation
2 Citations (Scopus)

t-J model. Anyons, flux states, spinons, holons, and all that

Barnes, S., Aug 1990, In : Physica B: Condensed Matter. 165-66, 2, p. 987-988 2 p.

Research output: Contribution to journalArticle

Ground state
Fluxes
Bosons
Mean field theory
ground state
112 Citations (Scopus)

Universality classes for domain wall motion in the ferromagnetic semiconductor (Ga,Mn)As

Yamanouchi, M., Ieda, J., Matsukura, F., Barnes, S., Maekawa, S. & Ohno, H., Sep 21 2007, In : Science. 317, 5845, p. 1726-1729 4 p.

Research output: Contribution to journalArticle

Semiconductors
Magnetic Fields
32 Citations (Scopus)

Unusual behavior of the Gd ESR in single crystals of GdyY1-yBa2Cu3O6+x with x=0.1-0.8 and y=0.03-0.06: Evidence for magnetic interaction in the superconductors

Shaltiel, D., Barnes, S., Bill, H., Francois, M., Hagemann, H., Jegondaz, J., Lovy, D., Monod, P., Peter, M., Revcolevschi, A., Sadowski, W. & Walker, E., Oct 15 1989, In : Physica C: Superconductivity and its Applications. 161, 1, p. 13-20 8 p.

Research output: Contribution to journalArticle

Superconducting materials
Paramagnetic resonance
Single crystals
Crystals
single crystals
3 Citations (Scopus)
Josephson junctions
magnetic fields
critical current
current density