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Research Output 1990 2019

  • 87 Article
  • 10 Conference contribution
  • 2 Conference article
  • 2 Editorial
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Article
2019
Impurities
impurities
Defects
Momentum
Kondo effect

Scaling of the Nonlocal Spin and Baseline Resistances in Graphene Lateral Spin Valves

Hu, J., Stecklein, G., Deen, D. A., Su, Q., Crowell, P. A. & Koester, S. J., Nov 2019, In : IEEE Transactions on Electron Devices. 66, 11, p. 5003-5010 8 p., 8871329.

Research output: Contribution to journalArticle

Graphite
Graphene
Thermoelectricity
Spin polarization
Chemical vapor deposition
2018
2 Citations (Scopus)

Independent gate control of injected and detected spin currents in CVD graphene nonlocal spin valves

Anugrah, Y., Hu, J., Stecklein, G., Koester, S. J. & Crowell, P. A., Jan 1 2018, In : AIP Advances. 8, 1, p. 015129

Research output: Contribution to journalArticle

8 Citations (Scopus)

Influence of the magnetic proximity effect on spin-orbit torque efficiencies in ferromagnet/platinum bilayers

Peterson, T. A., McFadden, A. P., Palmstrøm, C. J. & Crowell, P. A., Jan 10 2018, In : Physical Review B. 97, 2, 020403.

Research output: Contribution to journalArticle

Platinum
torque
Orbits
platinum
Torque
1 Citation (Scopus)

Quantitative analysis and optimization of magnetization precession initiated by ultrafast optical pulses

Lattery, D. M., Zhu, J., Zhang, D., Wang, J., Crowell, P. A. & Wang, X., Oct 15 2018, In : Applied Physics Letters. 113, 16, 162405.

Research output: Contribution to journalArticle

Kerr effects
precession
quantitative analysis
magnetization
optimization
4 Citations (Scopus)

Reduced interface spin polarization by antiferromagnetically coupled Mn segregated to the Co2MnSi /GaAs (001) interface

Rath, A., Sivakumar, C., Sun, C., Patel, S. J., Jeong, J. S., Feng, J., Stecklein, G., Crowell, P. A., Palmstrøm, C. J., Butler, W. H. & Voyles, P. M., 2018, In : Physical Review B. 97, 4

Research output: Contribution to journalArticle

Spin Absorption by in Situ Deposited Nanoscale Magnets on Graphene Spin Valves

Amamou, W., Stecklein, G., Koester, S. J., Crowell, P. A. & Kawakami, R. K., Oct 19 2018, In : Physical Review Applied. 10, 4, 044050.

Research output: Contribution to journalArticle

graphene
magnets
injection
diffusion length
in situ measurement
4 Citations (Scopus)

Using Programmable Graphene Channels as Weights in Spin-Diffusive Neuromorphic Computing

Hu, J., Stecklein, G., Anugrah, Y., Crowell, P. A. & Koester, S. J., Jun 2018, In : IEEE Journal on Exploratory Solid-State Computational Devices and Circuits. 4, p. 26-34 9 p., 8334624.

Research output: Contribution to journalArticle

Open Access
Graphite
Graphene
Neural networks
Magnetoelectronics
Circuit simulation
2017
4 Citations (Scopus)

Room temperature spin Kondo effect and intermixing in Co/Cu non-local spin valves

Watts, J. D., Jeong, J. S., O'Brien, L., Mkhoyan, K. A., Crowell, P. A. & Leighton, C., May 29 2017, In : Applied Physics Letters. 110, 22, 222407.

Research output: Contribution to journalArticle

Kondo effect
room temperature
polarization
solubility
magnetic moments
5 Citations (Scopus)

Theory of Kondo suppression of spin polarization in nonlocal spin valves

Kim, K. W., O'Brien, L., Crowell, P. A., Leighton, C. & Stiles, M. D., Mar 7 2017, In : Physical Review B. 95, 10, 104404.

Research output: Contribution to journalArticle

Spin polarization
Physics
retarding
polarization
Metals
2016
12 Citations (Scopus)

Band structure characterization of WS2 grown by chemical vapor deposition

Tanabe, I., Gomez, M., Coley, W. C., Le, D., Echeverria, E. M., Stecklein, G., Kandyba, V., Balijepalli, S. K., Klee, V., Nguyen, A. E., Preciado, E., Lu, I. H., Bobek, S., Barroso, D., Martinez-Ta, D., Barinov, A., Rahman, T. S., Dowben, P. A., Crowell, P. A. & Bartels, L., Jun 20 2016, In : Applied Physics Letters. 108, 25, 252103.

Research output: Contribution to journalArticle

vapor deposition
valence
orbits
Brillouin zones
transistors
18 Citations (Scopus)

Contact-Induced Spin Relaxation in Graphene Nonlocal Spin Valves

Stecklein, G., Crowell, P. A., Li, J., Anugrah, Y., Su, Q. & Koester, S. J., Nov 28 2016, In : Physical Review Applied. 6, 5, 054015.

Research output: Contribution to journalArticle

graphene
vapor deposition
normalizing
electric potential
contact resistance
13 Citations (Scopus)

Dynamic detection of electron spin accumulation in ferromagnet-semiconductor devices by ferromagnetic resonance

Liu, C., Patel, S. J., Peterson, T. A., Geppert, C. C., Christie, K. D., Stecklein, G., Palmstrom, C. J. & Crowell, P. A., Jan 18 2016, In : Nature communications. 7, 10296.

Research output: Contribution to journalArticle

Ferromagnetic resonance
Semiconductors
Magnets
ferromagnetic resonance
Semiconductor devices
11 Citations (Scopus)

Interdiffusion-controlled Kondo suppression of injection efficiency in metallic nonlocal spin valves

O'Brien, L., Spivak, D., Jeong, J. S., Mkhoyan, K. A., Crowell, P. A. & Leighton, C., Jan 11 2016, In : Physical Review B. 93, 1, 014413.

Research output: Contribution to journalArticle

Kondo effect
retarding
injection
Metals
Annealing
1 Citation (Scopus)

Non-Local Lateral Spin-Valve Devices Fabricated with a Versatile Top-Down Fabrication Process

Smith, A. K., Jamali, M., Stecklein, G., Crowell, P. A. & Wang, J. P., Jan 1 2016, In : IEEE Magnetics Letters. 7, 7454686.

Research output: Contribution to journalArticle

Fabrication
Industrial applications
Scalability
Costs
12 Citations (Scopus)

Observation and modelling of ferromagnetic contact-induced spin relaxation in Hanle spin precession measurements

O'Brien, L., Spivak, D., Krueger, N., Peterson, T. A., Erickson, M. J., Bolon, B., Geppert, C. C., Leighton, C. & Crowell, P. A., Sep 26 2016, In : Physical Review B. 94, 9, 094431.

Research output: Contribution to journalArticle

precession
sinking
Geometry
Magnetization
Metals
27 Citations (Scopus)

Spin injection and detection up to room temperature in Heusler alloy/ n -GaAs spin valves

Peterson, T. A., Patel, S. J., Geppert, C. C., Christie, K. D., Rath, A., Pennachio, D., Flatte, M. E., Voyles, P. M., Palmstrom, C. J. & Crowell, P. A., Dec 30 2016, In : Physical Review B. 23, 235309.

Research output: Contribution to journalArticle

injection
room temperature
Detectors
Temperature
Numerical models
2015
6 Citations (Scopus)

Anisotropic spin relaxation in n -GaAs from strong inhomogeneous hyperfine fields produced by the dynamical polarization of nuclei

Harmon, N. J., Peterson, T. A., Geppert, C. C., Patel, S. J., Palmstrøm, C. J., Crowell, P. A. & Flatté, M. E., Oct 7 2015, In : Physical Review B - Condensed Matter and Materials Physics. 92, 14, 140201.

Research output: Contribution to journalArticle

Polarization
Spin polarization
nuclei
Electrons
polarization
15 Citations (Scopus)

Determination of the Schottky barrier height of ferromagnetic contacts to few-layer phosphorene

Anugrah, Y., Robbins, M. C., Crowell, P. A. & Koester, S. J., Mar 9 2015, In : Applied Physics Letters. 106, 10, 103108.

Research output: Contribution to journalArticle

Permalloys (trademark)
cobalt
nuclear spin
phosphorus
analogs
2 Citations (Scopus)

Knight shift and nuclear spin relaxation in Fe/n -GaAs heterostructures

Christie, K. D., Geppert, C. C., Patel, S. J., Hu, Q. O., Palmstrom, C. J. & Crowell, P. A., Oct 26 2015, In : Physical Review B - Condensed Matter and Materials Physics. 92, 15, 155204.

Research output: Contribution to journalArticle

nuclear spin
Heterojunctions
Spin polarization
electron spin
Isotopes
81 Citations (Scopus)

Spin-based computing: Device concepts, current status, and a case study on a high-performance microprocessor

Kim, J., Paul, A., Crowell, P. A., Koester, S. J., Sapatnekar, S. S., Wang, J. P. & Kim, C. H., Jan 1 2015, In : Proceedings of the IEEE. 103, 1, p. 106-130 25 p., 6967696.

Research output: Contribution to journalArticle

Magnetoelectronics
Microprocessor chips
Metals
Oxide semiconductors
2014
8 Citations (Scopus)

Electrical detection of ferromagnetic resonance in ferromagnet/ n -GaAs heterostructures by tunneling anisotropic magnetoresistance

Liu, C., Boyko, Y., Geppert, C. C., Christie, K. D., Stecklein, G., Patel, S. J., Palmstrøm, C. J. & Crowell, P. A., Nov 24 2014, In : Applied Physics Letters. 105, 21, 212401.

Research output: Contribution to journalArticle

ferromagnetic resonance
electric potential
line shape
magnetization
31 Citations (Scopus)

Kondo physics in non-local metallic spin transport devices

O'Brien, L., Erickson, M. J., Spivak, D., Ambaye, H., Goyette, R. J., Lauter, V., Crowell, P. A. & Leighton, C., May 29 2014, In : Nature communications. 5, 3927.

Research output: Contribution to journalArticle

Physics
Kondo effect
Equipment and Supplies
Magnetoelectronics
Spin polarization
9 Citations (Scopus)

Resonance in magnetostatically coupled transverse domain walls

Galkiewicz, A. T., O'Brien, L., Keatley, P. S., Cowburn, R. P. & Crowell, P. A., Jul 24 2014, In : Physical Review B - Condensed Matter and Materials Physics. 90, 2, 024420.

Research output: Contribution to journalArticle

Domain walls
domain wall
Nanowires
nanowires
roughness
2012
6 Citations (Scopus)

High power and low critical current spin torque oscillation from a magnetic tunnel junction with a built-in hard axis polarizer

Zhang, Y., Zhao, H., Lyle, A., Crowell, P. A. & Wang, J. P., Jan 16 2012, In : Applied Physics Letters. 100, 3, 032405.

Research output: Contribution to journalArticle

polarizers
tunnel junctions
torque
critical current
oscillations
18 Citations (Scopus)

Phase diagram of magnetic vortex dynamics

Chen, T. Y., Galkiewicz, A. T. & Crowell, P. A., May 16 2012, In : Physical Review B - Condensed Matter and Materials Physics. 85, 18, 180406.

Research output: Contribution to journalArticle

Phase diagrams
Vortex flow
phase diagrams
vortices
Permalloys (trademark)
32 Citations (Scopus)

Surface roughness dominated pinning mechanism of magnetic vortices in soft ferromagnetic films

Chen, T. Y., Erickson, M. J., Crowell, P. A. & Leighton, C., Aug 27 2012, In : Physical Review Letters. 109, 9, 097202.

Research output: Contribution to journalArticle

ferromagnetic films
surface roughness
vortices
domain wall
roughness
2011
25 Citations (Scopus)

Spin accumulation near Fe/GaAs (001) interfaces: The role of semiconductor band structure

Hu, Q. O., Garlid, E. S., Crowell, P. A. & Palmstrøm, C. J., Aug 22 2011, In : Physical Review B - Condensed Matter and Materials Physics. 84, 8, 085306.

Research output: Contribution to journalArticle

Band structure
Semiconductor materials
Bias voltage
Electronic structure
Heterojunctions

Spin torque oscillation modes of a dual magnetic tunneling junction

Zhang, Y., Zhao, H., Lyle, A., Crowell, P. A. & Wang, J. P., Apr 1 2011, In : Journal of Applied Physics. 109, 7, 07D307.

Research output: Contribution to journalArticle

torque
oscillations
tunnel junctions
power spectra
2010
43 Citations (Scopus)

Electrical measurement of the direct spin hall effect in Fe/InxGa1-xAs heterostructures

Garlid, E. S., Hu, Q. O., Chan, M. K., Palmstrøm, C. J. & Crowell, P. A., Oct 4 2010, In : Physical Review Letters. 105, 15, 156602.

Research output: Contribution to journalArticle

electrical measurement
Hall effect
tunnels
conductivity
temperature dependence
46 Citations (Scopus)

Magnetic vortex dynamics in the presence of pinning

Compton, R. L., Chen, T. Y. & Crowell, P. A., Apr 9 2010, In : Physical Review B - Condensed Matter and Materials Physics. 81, 14, 144412.

Research output: Contribution to journalArticle

Vortex flow
vortices
Defects
defects
Permalloys (trademark)
5 Citations (Scopus)

Non-linear dynamics of a magnetic vortex

Chen, T. Y. & Crowell, P. A., Jun 1 2010, In : IEEE Transactions on Magnetics. 46, 6, p. 1457-1459 3 p., 5467624.

Research output: Contribution to journalArticle

Vortex flow
Magnetostatics
Microscopic examination
Defects
2009
41 Citations (Scopus)

Bias-controlled sensitivity of ferromagnet/semiconductor electrical spin detectors

Crooker, S. A., Garlid, E. S., Chantis, A. N., Smith, D. L., Reddy, K. S. M., Hu, Q. O., Kondo, T., Palmstrøm, C. J. & Crowell, P. A., Aug 6 2009, In : Physical Review B - Condensed Matter and Materials Physics. 80, 4, 041305.

Research output: Contribution to journalArticle

Semiconductor materials
Detectors
sensitivity
detectors
Bias voltage
41 Citations (Scopus)

Hyperfine interactions and spin transport in ferromagnet-semiconductor heterostructures

Chan, M. K., Hu, Q. O., Zhang, J., Kondo, T., Palmstrøm, C. J. & Crowell, P. A., Oct 28 2009, In : Physical Review B - Condensed Matter and Materials Physics. 80, 16, 161206.

Research output: Contribution to journalArticle

Beam plasma interactions
electron spin
Heterojunctions
Semiconductor materials
Electrons
35 Citations (Scopus)

Spin injection across the Fe/GaAs interface: Role of interfacial ordering

Schultz, B. D., Marom, N., Naveh, D., Lou, X., Adelmann, C., Strand, J., Crowell, P. A., Kronik, L. & Palmstrøm, C. J., Nov 16 2009, In : Physical Review B - Condensed Matter and Materials Physics. 80, 20, 201309.

Research output: Contribution to journalArticle

Spin polarization
Surface chemistry
Electronic structure
Light emitting diodes
injection
2008
38 Citations (Scopus)
Magnetization reversal
Anisotropy
education
cycles
magnetization
2007
632 Citations (Scopus)

Electrical detection of spin transport in lateral ferromagnet-semiconductor devices

Lou, X., Adelmann, C., Crooker, S. A., Garlid, E. S., Zhang, J., Reddy, K. S. M., Flexner, S. D., Palmstrøm, C. J. & Crowell, P. A., Mar 9 2007, In : Nature Physics. 3, 3, p. 197-202 6 p.

Research output: Contribution to journalArticle

semiconductor devices
injection
detectors
precession
tunnels
47 Citations (Scopus)

Local Hanle-effect studies of spin drift and diffusion in n:GaAs epilayers and spin-transport devices

Furis, M., Smith, D. L., Kos, S., Garlid, E. S., Reddy, K. S. M., Palmstrøm, C. J., Crowell, P. A. & Crooker, S. A., Sep 28 2007, In : New Journal of Physics. 9, 347.

Research output: Contribution to journalArticle

diffusion length
magnetic fields
depolarization
electron spin
asymmetry
17 Citations (Scopus)

Optical and electrical spin injection and spin transport in hybrid Fe/GaAs devices

Crooker, S. A., Furis, M., Lou, X., Crowell, P. A., Smith, D. L., Adelmann, C. & Palmstrøm, C. J., May 8 2007, In : Journal of Applied Physics. 101, 8, 081716.

Research output: Contribution to journalArticle

injection
microscopy
scanning
polarization
electrons
9 Citations (Scopus)

Suppression of nuclear polarization near the surface of optically pumped GaAs

Fitzsimmons, M. R., Kirby, B. J., Hengartner, N. W., Trouw, F., Erickson, M. J., Flexner, S. D., Kondo, T., Adelmann, C., Palmstrøm, C. J., Crowell, P. A., Chen, W. C., Gentile, T. R., Borchers, J. A., Majkrzak, C. F. & Pynn, R., Dec 3 2007, In : Physical Review B - Condensed Matter and Materials Physics. 76, 24, 245301.

Research output: Contribution to journalArticle

Neutrons
retarding
Polarization
neutrons
polarization
2006
82 Citations (Scopus)

Dynamics of a pinned magnetic vortex

Compton, R. L. & Crowell, P. A., Jan 1 2006, In : Physical Review Letters. 97, 13, 137202.

Research output: Contribution to journalArticle

vortices
ferromagnetic films
gyration
defects
magnetostatics
161 Citations (Scopus)

Electrical detection of Spin accumulation at a ferromagnet-semiconductor interface

Lou, X., Adelmann, C., Furis, M., Crooker, S. A., Palmstrøm, C. J. & Crowell, P. A., May 11 2006, In : Physical Review Letters. 96, 17, 176603.

Research output: Contribution to journalArticle

magnetic fields
tunnels
electric potential
predictions
electrons
20 Citations (Scopus)

Exchange bias as a probe of the incommensurate spin-density wave in epitaxial Fe/Cr(001)

Parker, J. S., Wang, L., Steiner, K. A., Crowell, P. A. & Leighton, C., Dec 8 2006, In : Physical Review Letters. 97, 22, 227206.

Research output: Contribution to journalArticle

oscillations
probes
longitudinal waves
coercivity
crossovers
37 Citations (Scopus)

Spin injection from perpendicular magnetized ferromagnetic δ-MnGa into (Al,Ga)As heterostructures

Adelmann, C., Hilton, J. L., Schultz, B. D., McKernan, S., Palmstrøm, C. J., Lou, X., Chiang, H. S. & Crowell, P. A., Sep 21 2006, In : Applied Physics Letters. 89, 11, 112511.

Research output: Contribution to journalArticle

injection
light emitting diodes
p-i-n diodes
remanence
magnetic fields
2005
255 Citations (Scopus)

Applied physics: Imaging spin transport in lateral ferromagnet/ semiconductor structures

Crooker, S. A., Furis, M., Lou, X., Adelmann, C., Smith, D. L., Palmstrøm, C. J. & Crowell, P. A., Sep 30 2005, In : Science. 309, 5744, p. 2191-2195 5 p.

Research output: Contribution to journalArticle

physics
electron spin
gallium
tunnels
electrons
49 Citations (Scopus)

Direct measurement of spatially localized ferromagnetic-resonance modes in an antidot lattice (invited)

Pechan, M. J., Yu, C., Compton, R. L., Park, J. P. & Crowell, P. A., May 15 2005, In : Journal of Applied Physics. 97, 10, 10J903.

Research output: Contribution to journalArticle

ferromagnetic resonance
microscopy
low frequencies
Permalloys (trademark)
spacing
23 Citations (Scopus)

Effects of doping profile and post-growth annealing on spin injection from Fe into (Al,Ga)As heterostructures

Adelmann, C., Xie, J. Q., Palmstrøm, C. J., Strand, J., Lou, X., Wang, J. & Crowell, P. A., Dec 1 2005, In : Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures. 23, 4, p. 1747-1751 5 p.

Research output: Contribution to journalArticle

Heterojunctions
Doping (additives)
Annealing
injection
annealing
30 Citations (Scopus)

Electron spin dynamics and hyperfine interactions in Fe Al0.1Ga0.9As GaAs spin injection heterostructures

Strand, J., Lou, X., Adelmann, C., Schultz, B. D., Isakovic, A. F., Palmstrøm, C. J. & Crowell, P. A., Oct 15 2005, In : Physical Review B - Condensed Matter and Materials Physics. 72, 15, 155308.

Research output: Contribution to journalArticle

Spin dynamics
spin dynamics
electron spin
Heterojunctions
Semiconductor quantum wells
83 Citations (Scopus)

Excitations in vortex-state permalloy dots

Zaspel, C. E., Ivanov, B. A., Park, J. P. & Crowell, P. A., Jul 1 2005, In : Physical Review B - Condensed Matter and Materials Physics. 72, 2, 024427.

Research output: Contribution to journalArticle

Permalloys (trademark)
Ground state
Aspect ratio
Vortex flow
vortices
113 Citations (Scopus)

Interactions of spin waves with a magnetic vortex

Park, J. P. & Crowell, P. A., Oct 14 2005, In : Physical Review Letters. 95, 16, 167201.

Research output: Contribution to journalArticle

magnons
vortices
interactions
microscopy