Publications
Selected publications
- Entropy-driven order in an array of nanomagnets (Journal article - 2022)
- Finite-Size Effect in Phonon-Induced Elliott-Yafet Spin Relaxation in Al (Journal article - 2022)
- String Phase in an Artificial Spin Ice (Journal article - 2021)
- Kondo physics in non-local metallic spin transport devices (Journal article - 2014)
- Crystallites of magnetic charges in artificial spin ice (Journal article - 2013)
2024
Thermal nanoconversion of ferromagnetic nanoislands
Barker, O. J., Mohammadi-Motlagh, A., Wright, A. J., Batty, R., Finch, H., Vezzoli, A., . . . O'Brien, L. (2024). Thermal nanoconversion of ferromagnetic nanoislands. Applied Physics Letters, 124(11). doi:10.1063/5.0189759
2023
Electron affinity of metal oxide thin films of TiO<sub>2</sub>, ZnO, and NiO and their applicability in 28.3 THz rectenna devices
Tekin, S. B., Almalki, S., Finch, H., Vezzoli, A., O'Brien, L., Dhanak, V. R., . . . Mitrovic, I. Z. (2023). Electron affinity of metal oxide thin films of TiO<sub>2</sub>, ZnO, and NiO and their applicability in 28.3 THz rectenna devices. JOURNAL OF APPLIED PHYSICS, 134(8). doi:10.1063/5.0157726
Fabricating Quasiperiodic Tilings with Thermal‐Scanning Probe Lithography
Chandler, L., Barker, O. J., Wright, A. J., O'Brien, L., Coates, S., McGrath, R., . . . Sharma, H. R. (n.d.). Fabricating Quasiperiodic Tilings with Thermal‐Scanning Probe Lithography. Israel Journal of Chemistry. doi:10.1002/ijch.202300115
2022
Entropy-driven order in an array of nanomagnets
Saglam, H., Duzgun, A., Kargioti, A., Harle, N., Zhang, X., Bingham, N. S., . . . Schiffer, P. (2022). Entropy-driven order in an array of nanomagnets. NATURE PHYSICS, 18(6), 706-+. doi:10.1038/s41567-022-01555-6
(Digital Presentation) Optimization of MIM Rectifiers for Terahertz Rectennas
Tekin, S. B., Almalki, S., Vezzoli, A., O’Brien, L., Hall, S., Chalker, P. R., & Mitrovic, I. Z. (2022). (Digital Presentation) Optimization of MIM Rectifiers for Terahertz Rectennas. In ECS Transactions Vol. 108 (pp. 69-79). The Electrochemical Society. doi:10.1149/10802.0069ecst
Finite-Size Effect in Phonon-Induced Elliott-Yafet Spin Relaxation in Al
Watts, J. D., Batley, J. T., Rabideau, N. A., Hoch, J. P., O'Brien, L., Crowell, P. A., & Leighton, C. (2022). Finite-Size Effect in Phonon-Induced Elliott-Yafet Spin Relaxation in Al. PHYSICAL REVIEW LETTERS, 128(20). doi:10.1103/PhysRevLett.128.207201
Electron beam evaporation of superconductor-ferromagnet heterostructures
Bromley, D., Wright, A. J., Jones, L. A. H., Swallow, J. E. N., Beesley, T., Batty, R., . . . O'Brien, L. (2022). Electron beam evaporation of superconductor-ferromagnet heterostructures. SCIENTIFIC REPORTS, 12(1). doi:10.1038/s41598-022-11828-y
2021
String Phase in an Artificial Spin Ice
Zhang, X., Duzgun, A., Lao, Y., Subzwari, S., Bingham, N. S., Sklenar, J., . . . Schiffer, P. (2021). String Phase in an Artificial Spin Ice. NATURE COMMUNICATIONS, 12(1). doi:10.1038/s41467-021-26734-6
Origin of the magnetic field enhancement of the spin signal in metallic nonlocal spin transport devices
Wright, A. J., Erickson, M. J., Bromley, D., Crowell, P. A., Leighton, C., & O'Brien, L. (2021). Origin of the magnetic field enhancement of the spin signal in metallic nonlocal spin transport devices. PHYSICAL REVIEW B, 104(1). doi:10.1103/PhysRevB.104.014423
2019
Magnetic impurities as the origin of the variability in spin relaxation rates in Cu-based spin transport devices
Watts, J. D., O'Brien, L., Jeong, J. S., Mkhoyan, K. A., Crowell, P. A., & Leighton, C. (2019). Magnetic impurities as the origin of the variability in spin relaxation rates in Cu-based spin transport devices. PHYSICAL REVIEW MATERIALS, 3(12). doi:10.1103/PhysRevMaterials.3.124409
Controlling All‐Optical Helicity‐Dependent Switching in Engineered Rare‐Earth Free Synthetic Ferrimagnets
Liao, J., Vallobra, P., O'Brien, L. A., Atxitia, U., Raposo, V., Petit, D., . . . Cowburn, R. P. (2019). Controlling All‐Optical Helicity‐Dependent Switching in Engineered Rare‐Earth Free Synthetic Ferrimagnets. Advanced Science, 6(24). doi:10.1002/advs.201901876
When do Anisotropic Magnetic Susceptibilities Lead to Large NMR Shifts? Exploring Particle Shape Effects in the Battery Electrode Material LiFePO4.
Pigliapochi, R., O'Brien, L., Pell, A. J., Gaultois, M. W., Janssen, Y., Khalifah, P., & Grey, C. P. (2019). When do Anisotropic Magnetic Susceptibilities Lead to Large NMR Shifts? Exploring Particle Shape Effects in the Battery Electrode Material LiFePO4.. Journal of the American Chemical Society, 141(33), 13089-13100. doi:10.1021/jacs.9b04674
2017
All-optical switching behaviours in synthetic ferrimagnetic heterostructures with different ferromagnetic-layer Curie temperatures
Liao, J., Vallobra, P., Petit, D., Vemulkar, T., O'Brien, L., Malinowski, G., . . . Cowburn, R. (2017). All-optical switching behaviours in synthetic ferrimagnetic heterostructures with different ferromagnetic-layer Curie temperatures. In 2017 IEEE International Magnetics Conference (INTERMAG) Vol. 345 (pp. 1). IEEE. doi:10.1109/intmag.2017.8008016
Potential resolution to the doping puzzle in iron pyrite: Carrier type determination by Hall effect and thermopower
Zhang, X., Li, M., Walter, J., O'Brien, L., Manno, M. A., Voigt, B., . . . Leighton, C. (2017). Potential resolution to the doping puzzle in iron pyrite: Carrier type determination by Hall effect and thermopower. PHYSICAL REVIEW MATERIALS, 1(1). doi:10.1103/PhysRevMaterials.1.015402
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. (2017). Room temperature spin Kondo effect and intermixing in Co/Cu non-local spin valves. APPLIED PHYSICS LETTERS, 110(22). doi:10.1063/1.4984896
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. (2017). Theory of Kondo suppression of spin polarization in nonlocal spin valves. PHYSICAL REVIEW B, 95(10). doi:10.1103/PhysRevB.95.104404
2016
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., . . . Crowell, P. A. (2016). Observation and modelling of ferromagnetic contact-induced spin relaxation in Hanle spin precession measurements. PHYSICAL REVIEW B, 94(9). doi:10.1103/PhysRevB.94.094431
Efficient spin transport through native oxides of nickel and permalloy with platinum and gold overlayers
Zink, B. L., Manno, M., O'Brien, L., Lotze, J., Weiler, M., Bassett, D., . . . Leighton, C. (2016). Efficient spin transport through native oxides of nickel and permalloy with platinum and gold overlayers. Physical Review B - Condensed Matter and Materials Physics, 93(18). doi:10.1103/PhysRevB.93.184401
Emergent reduced dimensionality by vertex frustration in artificial spin ice
Gilbert, I., Lao, Y., Carrasquillo, I., O'Brien, L., Watts, J. D., Manno, M., . . . Schiffer, P. (2016). Emergent reduced dimensionality by vertex frustration in artificial spin ice. NATURE PHYSICS, 12(2), 162-165. doi:10.1038/NPHYS3520
Interdiffusion-controlled Kondo suppression of injection efficiency in metallic nonlocal spin valves
O'Brien, L. D. A., Spivak, D., Jeong, J. S., Mkhoyan, K. A., Crowell, P. A., & Leighton, C. (2016). Interdiffusion-controlled Kondo suppression of injection efficiency in metallic nonlocal spin valves. PHYSICAL REVIEW B, 93(1). doi:10.1103/PhysRevB.93.014413
2015
Size-Tuned ZnO Nanocrucible Arrays for Magnetic Nanodot Synthesis via Atomic Layer Deposition-Assisted Block Polymer Lithography
Lin, C. -H., Polisetty, S., O'Brien, L., Baruth, A., Hilimyer, M. A., Leighton, C., & Gladfelter, W. L. (2015). Size-Tuned ZnO Nanocrucible Arrays for Magnetic Nanodot Synthesis via Atomic Layer Deposition-Assisted Block Polymer Lithography. ACS Nano, 9(2), 1379-1387. doi:10.1021/nn505731n
Effects of exchange bias on magnetotransport in permalloy kagome artificial spin ice
Le, B. L., Rench, D. W., Misra, R., O'Brien, L., Leighton, C., Samarth, N., & Schiffer, P. (2015). Effects of exchange bias on magnetotransport in permalloy kagome artificial spin ice. NEW JOURNAL OF PHYSICS, 17. doi:10.1088/1367-2630/17/2/023047
Zinc oxide nanocrucible arrays for magnetic nanodot synthesis via ALD-assisted block polymer lithography
Gladfelter, W., Lin, C. -H., Polisetty, S., O'Brien, L., Baruth, A., Hillmyer, M., & Leighton, C. (2015). Zinc oxide nanocrucible arrays for magnetic nanodot synthesis via ALD-assisted block polymer lithography. In ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY Vol. 250. Retrieved from https://www.webofscience.com/
2014
Emergent ice rule and magnetic charge screening from vertex frustration in artificial spin ice
Gilbert, I., Chern, G. -W., Zhang, S., O'Brien, L., Fore, B., Nisoli, C., & Schiffer, P. (2014). Emergent ice rule and magnetic charge screening from vertex frustration in artificial spin ice. Nature Physics, 10(9), 670-675. doi:10.1038/NPHYS3037
Resonance in magnetostatically coupled transverse domain walls
Galkiewicz, A. T., O'Brien, L., Keatley, P. S., Cowburn, R. P., & Crowell, P. A. (2014). Resonance in magnetostatically coupled transverse domain walls. PHYSICAL REVIEW B, 90(2). doi:10.1103/PhysRevB.90.024420
Kondo physics in non-local metallic spin transport devices
O'Brien, L., Erickson, M. J., Spivak, D., Ambaye, H., Goyette, R. J., Lauter, V., . . . Leighton, C. (2014). Kondo physics in non-local metallic spin transport devices. NATURE COMMUNICATIONS, 5. doi:10.1038/ncomms4927
Time-resolved Kerr microscopy of coupled transverse domain walls in a pair of curved nanowires
Keatley, P. S., Yu, W., O'Brien, L., Read, D. E., Cowburn, R. P., & Hicken, R. J. (2014). Time-resolved Kerr microscopy of coupled transverse domain walls in a pair of curved nanowires. JOURNAL OF APPLIED PHYSICS, 115(17). doi:10.1063/1.4865211
2013
Crystallites of magnetic charges in artificial spin ice
Zhang, S., Gilbert, I., Nisoli, C., Chern, G. -W., Erickson, M. J., O'Brien, L., . . . Schiffer, P. (2013). Crystallites of magnetic charges in artificial spin ice. NATURE, 500(7464), 553-557. doi:10.1038/nature12399
Three dimensional magnetic nanowires grown by focused electron-beam induced deposition
Fernandez-Pacheco, A., Serrano-Ramon, L., Michalik, J. M., Ricardo Ibarra, M., De Teresa, J. M., O'Brien, L., . . . Cowburn, R. P. (2013). Three dimensional magnetic nanowires grown by focused electron-beam induced deposition. SCIENTIFIC REPORTS, 3. doi:10.1038/srep01492
Coupling and induced depinning of magnetic domain walls in adjacent spin valve nanotracks
Sampaio, J., O'Brien, L., Petit, D., Read, D. E., Lewis, E. R., Zeng, H. T., . . . Cowburn, R. P. (2013). Coupling and induced depinning of magnetic domain walls in adjacent spin valve nanotracks. JOURNAL OF APPLIED PHYSICS, 113(13). doi:10.1063/1.4798943
2012
Domain wall interactions at a cross-shaped vertex
O'Brien, L., Beguivin, A., Petit, D., Fernandez-Pacheco, A., Read, D., & Cowburn, R. P. (2012). Domain wall interactions at a cross-shaped vertex. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 370(1981), 5794-5805. doi:10.1098/rsta.2012.0089
Magnetic domain wall induced, localized nanowire reversal
O'Brien, L., Beguivin, A., Fernandez-Pacheco, A., Petit, D., Read, D. E., & Cowburn, R. P. (2012). Magnetic domain wall induced, localized nanowire reversal. APPLIED PHYSICS LETTERS, 101(6). doi:10.1063/1.4742746
Dynamic Oscillations of Coupled Domain Walls
O'Brien, L., Lewis, E. R., Fernandez-Pacheco, A., Petit, D., Cowburn, R. P., Sampaio, J., & Read, D. E. (2012). Dynamic Oscillations of Coupled Domain Walls. PHYSICAL REVIEW LETTERS, 108(18). doi:10.1103/PhysRevLett.108.187202
Correlation between the magnetic imaging of cobalt nanoconstrictions and their magnetoresistance response
Fernandez-Pacheco, A., Serrano-Ramon, L. E., Tyliszczak, T., Chou, K. W., Cordoba, R., Szkudlarek, A., . . . De Teresa, J. M. (2012). Correlation between the magnetic imaging of cobalt nanoconstrictions and their magnetoresistance response. NANOTECHNOLOGY, 23(10). doi:10.1088/0957-4484/23/10/105703
Dynamic propagation and nucleation in domain wall nanowire devices
O'Brien, L., Read, D. E., Petit, D., & Cowburn, R. P. (2012). Dynamic propagation and nucleation in domain wall nanowire devices. JOURNAL OF PHYSICS-CONDENSED MATTER, 24(2). doi:10.1088/0953-8984/24/2/024222
2011
Magnetisation reversal in permalloy nanowires controlled by near-field charge interactions
Beguivin, A., O'Brien, L. A., Jausovec, A. V., Petit, D., & Cowburn, R. P. (2011). Magnetisation reversal in permalloy nanowires controlled by near-field charge interactions. APPLIED PHYSICS LETTERS, 99(14). doi:10.1063/1.3646548
Chirality dependence of nanoscale ferromagnetic NOT gates
Lewis, E. R., Petit, D., O'Brien, L., Zeng, H. T., Read, D. E., & Cowburn, R. P. (2011). Chirality dependence of nanoscale ferromagnetic NOT gates. JOURNAL OF APPLIED PHYSICS, 109(5). doi:10.1063/1.3549599
Tunable Remote Pinning of Domain Walls in Magnetic Nanowires
O'Brien, L., Petit, D., Lewis, E. R., Cowburn, R. P., Read, D. E., Sampaio, J., . . . Jausovec, A. -V. (2011). Tunable Remote Pinning of Domain Walls in Magnetic Nanowires. PHYSICAL REVIEW LETTERS, 106(8). doi:10.1103/PhysRevLett.106.087204
Kinetic depinning of a magnetic domain wall above the Walker field
Lewis, E. R., Petit, D., O'Brien, L., Jausovec, A. -V., Zeng, H. T., Read, D. E., & Cowburn, R. P. (2011). Kinetic depinning of a magnetic domain wall above the Walker field. APPLIED PHYSICS LETTERS, 98(4). doi:10.1063/1.3543844
2010
Magnetic imaging of the pinning mechanism of asymmetric transverse domain walls in ferromagnetic nanowires
Petit, D., Zeng, H. T., Sampaio, J., Lewis, E., O'Brien, L., Jausovec, A. -V., . . . Chapman, J. N. (2010). Magnetic imaging of the pinning mechanism of asymmetric transverse domain walls in ferromagnetic nanowires. APPLIED PHYSICS LETTERS, 97(23). doi:10.1063/1.3523351
Fast domain wall motion in magnetic comb structures
Lewis, E. R., Petit, D., O'Brien, L., Fernandez-Pacheco, A., Sampaio, J., Jausovec, A. -V., . . . Cowburn, R. P. (2010). Fast domain wall motion in magnetic comb structures. NATURE MATERIALS, 9(12), 980-983. doi:10.1038/NMAT2857
The influence of wire width on the charge distribution of transverse domain walls and their stray field interactions
Zeng, H. T., Petit, D., O'Brien, L., Read, D., Lewis, E. R., & Cowburn, R. P. (2010). The influence of wire width on the charge distribution of transverse domain walls and their stray field interactions. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 322(14), 2010-2014. doi:10.1016/j.jmmm.2010.01.024
Asymmetric magnetic NOT gate and shift registers for high density data storage
Zeng, H. T., Read, D., O'Brien, L., Sampaio, J., Lewis, E. R., Petit, D., & Cowburn, R. P. (2010). Asymmetric magnetic NOT gate and shift registers for high density data storage. APPLIED PHYSICS LETTERS, 96(26). doi:10.1063/1.3457998
2009
Bidirectional magnetic nanowire shift register
O'Brien, L., Read, D. E., Zeng, H. T., Lewis, E. R., Petit, D., & Cowburn, R. P. (2009). Bidirectional magnetic nanowire shift register. APPLIED PHYSICS LETTERS, 95(23). doi:10.1063/1.3271683
Magnetization reversal in individual cobalt micro- and nanowires grown by focused-electron-beam-induced-deposition
Fernandez-Pacheco, A., De Teresa, J. M., Szkudlarek, A., Cordoba, R., Ibarra, M. R., Petit, D., . . . Cowburn, R. P. (2009). Magnetization reversal in individual cobalt micro- and nanowires grown by focused-electron-beam-induced-deposition. NANOTECHNOLOGY, 20(47). doi:10.1088/0957-4484/20/47/475704
Magnetic domain wall pinning by a curved conduit
Lewis, E. R., Petit, D., Thevenard, L., Jausovec, A. V., O'Brien, L., Read, D. E., & Cowburn, R. P. (2009). Magnetic domain wall pinning by a curved conduit. APPLIED PHYSICS LETTERS, 95(15). doi:10.1063/1.3246154
Near-Field Interaction between Domain Walls in Adjacent Permalloy Nanowires
O'Brien, L., Petit, D., Zeng, H. T., Lewis, E. R., Sampaio, J., Jausovec, A. V., . . . Cowburn, R. P. (2009). Near-Field Interaction between Domain Walls in Adjacent Permalloy Nanowires. PHYSICAL REVIEW LETTERS, 103(7). doi:10.1103/PhysRevLett.103.077206
Mechanism for domain wall pinning and potential landscape modification by artificially patterned traps in ferromagnetic nanowires
Petit, D., Jausovec, A. -V., Zeng, H. T., Lewis, E., O'Brien, L., Read, D., & Cowburn, R. P. (2009). Mechanism for domain wall pinning and potential landscape modification by artificially patterned traps in ferromagnetic nanowires. PHYSICAL REVIEW B, 79(21). doi:10.1103/PhysRevB.79.214405
Domain wall conduit behavior in cobalt nanowires grown by focused electron beam induced deposition
Fernandez-Pacheco, A., De Teresa, J. M., Cordoba, R., Ibarra, M. R., Petit, D., Read, D. E., . . . Cowburn, R. P. (2009). Domain wall conduit behavior in cobalt nanowires grown by focused electron beam induced deposition. APPLIED PHYSICS LETTERS, 94(19). doi:10.1063/1.3139068
Combined electrical and magneto-optical measurements of the magnetization reversal process at a domain wall trap.
Zeng, H. T., Read, D., Petit, D., Jausovec, A. V., O'Brien, L., Lewis, E. R., & Cowburn, R. P. (2009). Combined electrical and magneto-optical measurements of the magnetization reversal process at a domain wall trap.. APPLIED PHYSICS LETTERS, 94(10). doi:10.1063/1.3098359
Measuring Domain Wall Fidelity Lengths Using a Chirality Filter
Lewis, E. R., Petit, D., Jausovec, A. -V., O'Brien, L., Read, D. E., Zeng, H. T., & Cowburn, R. P. (2009). Measuring Domain Wall Fidelity Lengths Using a Chirality Filter. PHYSICAL REVIEW LETTERS, 102(5). doi:10.1103/PhysRevLett.102.057209
2008
High efficiency domain wall gate in ferromagnetic nanowires
Petit, D., Jausovec, A. -V., Zeng, H. T., Lewis, E., O'Brien, L., Read, D., & Cowburn, R. P. (2008). High efficiency domain wall gate in ferromagnetic nanowires. APPLIED PHYSICS LETTERS, 93(16). doi:10.1063/1.3005586