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Materials Research Institute

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Dr Alan Drew

Reader in Condensed Matter and Materials Physics

Department School of Physics and Astronomy
 G O Jones 121, Mile End
Telephone +44 (0)20 7882 3435
Email a.j.drew@qmul.ac.uk
Homepage http://ph.qmul.ac.uk/directory/a.j.drew

Research Keywords

Muon spin spectroscopy, Organic electronics, Spin dynamics, Magnetism, Optical excitation dynamics

Research Interests

Dr Alan Drew is a Reader in Physics in the Condensed Matter and Materials Physics Group, a visiting professor at Sichuan University in China and a visiting research scientist at the ISIS Facility, Rutherford Appleton Laboratory. His main research interests are using spin sensitive probes situated at central facilities to characterise and understand the fundamental properties of materials, as well as laboratory based research (e.g magnetic, structural and electrical characterisation, thin film growth, raman/IR spectroscopy, electro/photo luminescence). His main interests are understanding spin and charge carrier dynamics in organic materials and the properties of materials with novel quantum mechanical states. One particular focus currently is on understanding  the dynamics of electronic excitations brought about by optical absorption, which is the central theme of his European Research Council funded project. Further details can be found on his websites:

http://www.mmp.ph.qmul.ac.uk/~drew/

http://muses.ph.qmul.ac.uk/

Key Publications

Yokoyama K, Lord JS, Murahari P, Wang K, Dunstan D, Waller SP, McPhail DJ, Hillier AD, Henson J, Harper MR, Heathcote P and DREW AJ (2016). The new high field photoexcitation muon spectrometer at the ISIS pulsed neutron and muon source. American Institute of Physics  Review of Scientific Instruments  10.1063/1.4972827

DREW AJ, wang K, Murahari P, Yokoyama , Misquitta , Dunstan and Heathcote (2016). Temporal mapping of photochemical reactions and molecular excited states with carbon specificity. Nature Publishing Group  Nature Materials  10.1038/nmat4816

Wang K, Schulz L, Willis M, Zhang S, Misquitta AJ and Drew AJ (2016). Spintronic and Electronic Phenomena in Organic Molecules Measured with ?SR. Journal of The Physical Society of Japan  vol. 85, (9) 10.7566/JPSJ.85.091011

Nuccio L, Schulz L and Drew AJ (2014). Muon spin spectroscopy: magnetism, soft matter and the bridge between the two. Iop Publishing  Journal of Physics D-Applied Physics  vol. 47, (47) 10.1088/0022-3727/47/47/473001

Nuccio L, Willis M, Schulz L, Fratini S, Messina F, D'Amico M, Pratt FL, Lord JS, McKenzie I, Loth M, Purushothaman B, Anthony J, Heeney M, Wilson RM, Hernández I, Cannas M, Sedlak K, Kreouzis T, Gillin WP and Bernhard C (2013). Importance of spin-orbit interaction for the electron spin relaxation in organic semiconductors. Phys Rev Lett  vol. 110, (21) 10.1103/PhysRevLett.110.216602

2016

Yokoyama K, Lord JS, Murahari P, Wang K, Dunstan D, Waller SP, McPhail DJ, Hillier AD, Henson J, Harper MR, Heathcote P and DREW AJ (2016). The new high field photoexcitation muon spectrometer at the ISIS pulsed neutron and muon source. American Institute of Physics  Review of Scientific Instruments  10.1063/1.4972827

DREW AJ, wang K, Murahari P, Yokoyama , Misquitta , Dunstan and Heathcote (2016). Temporal mapping of photochemical reactions and molecular excited states with carbon specificity. Nature Publishing Group  Nature Materials  10.1038/nmat4816

Wang K, Schulz L, Willis M, Zhang S, Misquitta AJ and Drew AJ (2016). Spintronic and Electronic Phenomena in Organic Molecules Measured with ?SR. Journal of The Physical Society of Japan  vol. 85, (9) 10.7566/JPSJ.85.091011

2014

Han S, Wang K, Willis M, Nuccio L, Pratt FL, Lord JS, Thorley KJ, Anthony J, Drew AJ, Zhang S and Schulz L (2014). Muonium avoided level crossing measurement of electron spin relaxation rate in a series of substituted anthradithiophene based molecules. Synthetic Metals  10.1016/j.synthmet.2015.04.020

Nuccio L, Schulz L and Drew AJ (2014). Muon spin spectroscopy: magnetism, soft matter and the bridge between the two. Iop Publishing  Journal of Physics D-Applied Physics  vol. 47, (47) 10.1088/0022-3727/47/47/473001

Zhang HT, Han S, Desai P, Zhan YQ, Li W, Si W, Scott K, Drew AJ, Gillin WP, Zhang SJ and Kreouzis T (2014). Ferromagnetic-organic interfacial states and their role on low voltage current injection in tris-8-hydroxyquinloline (Alq3) organic spin valves. Applied Physics Letters  vol. 105, (20) 10.1063/1.4902539

Morley NA, Drew AJ, Zhang H, Scott K, Hudziak S and Morgan DJ (2014). Study of the magnetic-Alq3 interface in organic spin-valves. Applied Surface Science  vol. 313, 850-857. 10.1016/j.apsusc.2014.06.088

Droghetti A, Steil S, Grossmann N, Haag N, Zhang H, Willis M, Gillin WP, Drew AJ, Aeschlimann M, Sanvito S and Cinchetti M (2014). Electronic and magnetic properties of the interface between metal-quinoline molecules and cobalt. Physical Review B  vol. 89, (9) 10.1103/PhysRevB.89.094412

Zhang H, Desai P, Zhan YQ, Drew AJ, Gillin WP and Kreouzis T (2014). The importance of holes in aluminium tris-8-hydroxyquinoline (Alq(3)) devices with Fe and NiFe contacts. Applied Physics Letters  vol. 104, (1) 10.1063/1.4861120

Morley NA, Drew AJ, Zhang H, Scott K, Hudziak S and Morgan DJ (2014). Study of the magnetic-Alq3 interface in organic spin-valves. Applied Surface Science  10.1016/j.apsusc.2014.06.088

2013

Yokoyama K, Murahari P, Heathcote P, Nuccio L, Lord JS, Morley NA and Drew AJ (2013). Future directions of mu SR-laser excitation. Physica Scripta  vol. 88, (6) 10.1088/0031-8949/88/06/068511

Nuccio L, Willis M, Schulz L, Fratini S, Messina F, D'Amico M, Pratt FL, Lord JS, McKenzie I, Loth M, Purushothaman B, Anthony J, Heeney M, Wilson RM, Hernández I, Cannas M, Sedlak K, Kreouzis T, Gillin WP and Bernhard C (2013). Importance of spin-orbit interaction for the electron spin relaxation in organic semiconductors. Phys Rev Lett  vol. 110, (21) 10.1103/PhysRevLett.110.216602

Prezioso M, Riminucci A, Graziosi P, Bergenti I, Rakshit R, Cecchini R, Vianelli A, Borgatti F, Haag N, Willis M, Drew AJ, Gillin WP and Dediu VA (2013). A single-device universal logic gate based on a magnetically enhanced memristor. Adv Mater  vol. 25, (4) 534-538. 10.1002/adma.201202031

2012

Bernhard C, Wang CN, Nuccio L, Schulz L, Zaharko O, Larsen J, Aristizabal C, Willis M, Drew AJ, Varma GD, Wolf T and Niedermayer C (2012). Muon spin rotation study of magnetism and superconductivity in Ba(Fe1-xCox)(2)As-2 single crystals. Physical Review B  vol. 86, (18) 10.1103/PhysRevB.86.184509

Zhang S, Rolfe NJ, Desai P, Shakya P, Drew AJ, Kreouzis T and Gillin WP (2012). Modeling of positive and negative organic magnetoresistance in organic light-emitting diodes. Physical Review B  vol. 86, (7) 10.1103/PhysRevB.86.075206

Drew AJ, Szulczewski G, Nuccio L and Gillin WP (2012). The role of interfaces in organic spin valves revealed through spectroscopic and transport measurements. Physica Status Solidi B-Basic Solid State Physics  vol. 249, (1) 9-17. 10.1002/pssb.201147157

2011

Schulz L, Willis M, Nuccio L, Shusharov P, Fratini S, Pratt FL, Gillin WP, Kreouzis T, Heeney M, Stingelin N, Stafford CA, Beesley DJ, Bernhard C, Anthony JE, McKenzie I, Lord JS and Drew AJ (2011). Importance of intramolecular electron spin relaxation in small molecule semiconductors. Phys Rev B  vol. 84, (8) 10.1103/PhysRevB.84.085209

Schulz L, Nuccio L, Willis M, Desai P, Shakya P, Kreouzis T, Malik VK, Bernhard C, Pratt FL, Morley NA, Suter A, Nieuwenhuys GJ, Prokscha T, Morenzoni E, Gillin WP and Drew AJ (2011). Engineering spin propagation across a hybrid organic/inorganic interface using a polar layer. Nat Mater  vol. 10, (3) 10.1038/nmat2962

Schulz L, Nuccio L, Willis M, Desai P, Shakya P, Kreouzis T, Malik VK, Bernhard C, Pratt FL, Morley NA, Suter A, Nieuwenhuys GJ, Prokscha T, Morenzoni E, Gillin WP and Drew AJ (2011). Engineering spin propagation across a hybrid organic/inorganic interface using a polar layer. Nat Mater  vol. 10, (1) 39-44. 10.1038/nmat2912

2010

Gillin WP, Zhang SJ, Rolfe NJ, Desai P, Shakya P, Drew AJ and Kreouzis T (2010). Determining the influence of excited states on current transport in organic light emitting diodes using magnetic field perturbation. Phys Rev B  vol. 82, (19) 10.1103/PhysRevB.82.195208

Song JY, Stingelin N, Drew AJ, Kreouzis T and Gillin WP (2010). Effect of excited states and applied magnetic fields on the measured hole mobility in an organic semiconductor. Phys Rev B  vol. 82, (8) 10.1103/PhysRevB.82.085205

Marsik P, Kim KW, Dubroka A, Roessle M, Malik VK, Schulz L, Wang CN, Niedermayer C, Drew AJ, Willis M, Wolf T and Bernhard C (2010). Coexistence and Competition of Magnetism and Superconductivity on the Nanometer Scale in Underdoped BaFe1.89Co0.11As2. Phys Rev Lett  vol. 105, (5) 10.1103/PhysRevLett.105.057001

2009

Rolfe NJ, Heeney M, Wyatt PB, Drew AJ, Kreouzis T and Gillin WP (2009). Elucidating the role of hyperfine interactions on organic magnetoresistance using deuterated aluminium tris(8-hydroxyquinoline). Phys Rev B  vol. 80, (24) 10.1103/PhysRevB.80.241201

Drew AJ, Wisemayer MW, Heron DOG, Lister S, Lee SL, Potenza A, Marrows CH, Dalgliesh RM, Charlton TR and Langridge S (2009). Using spin-polarized neutron reflectivity to probe mesoscopic vortex states in a Pb thin-film superconductor. Phys Rev B  vol. 80, (13) 10.1103/PhysRevB.80.134510

Bernhard C, Drew AJ, Schulz L, Malik VK, Rossle M, Niedermayer C, Wolf T, Varma GD, Mu G, Wen HH, Liu H, Wu G and Chen XH (2009). Muon spin rotation study of magnetism and superconductivity in BaFe2-xCoxAs2 and Pr1-xSrxFeAsO. New J Phys  vol. 11, 10.1088/1367-2630/11/5/055050

Drew AJ, Niedermayer C, Baker PJ, Pratt FL, Blundell SJ, Lancaster T, Liu RH, Wu G, Chen XH, Watanabe I, Malik VK, Dubroka A, Rössle M, Kim KW, Baines C and Bernhard C (2009). Coexistence of static magnetism and superconductivity in SmFeAsO(1-x)F(x) as revealed by muon spin rotation. Nat Mater  vol. 8, (4) 310-314. 10.1038/nmat2396

Hoppler J, Stahn J, Niedermayer C, Malik VK, Bouyanfif H, Drew AJ, Rössle M, Buzdin A, Cristiani G, Habermeier H-U, Keimer B and Bernhard C (2009). Giant superconductivity-induced modulation of the ferromagnetic magnetization in a cuprate-manganite superlattice. Nat Mater  vol. 8, (4) 315-319. 10.1038/nmat2383

Drew AJ, Hoppler J, Schulz L, Pratt FL, Desai P, Shakya P, Kreouzis T, Gillin WP, Suter A, Morley NA, Malik VK, Dubroka A, Kim KW, Bouyanfif H, Bourqui F, Bernhard C, Scheuermann R, Nieuwenhuys GJ, Prokscha T and Morenzoni E (2009). Direct measurement of the electronic spin diffusion length in a fully functional organic spin valve by low-energy muon spin rotation. Nat Mater  vol. 8, (2) 109-114. 10.1038/NMAT2333

Drew A (2009). Muons create better understanding of organic semiconductors ELECTRONIC MATERIALS. Materials Today  vol. 12, (7-8) 69-69.

2008

Muelhauser F, Baggio-Saitovitch E, Bharuth-Ram K, Brewer J, Cywinski R, Drew A, Heffner R, Kilcoyne S, Kurzydlowski K, MacFarlane WA and Poutissou JM (2008). Exotic beam research for advanced engineering materials. Report of a Technical Meeting: Exotic Beam Research For Advanced Engineering Materials  Iaea, Vienna 

Drew AJ, Pratt FL, Lancaster T, Blundell SJ, Baker PJ, Liu RH, Wu G, Chen XH, Watanabe I, Malik VK, Dubroka A, Kim KW, Rössle M and Bernhard C (2008). Coexistence of magnetic fluctuations and superconductivity in the pnictide high temperature superconductor SmFeAsO1-xFx measured by muon spin rotation. Phys Rev Lett  vol. 101, (9) 10.1103/PhysRevLett.101.097010

Dubroka A, Kim KW, Rössle M, Malik VK, Drew AJ, Liu RH, Wu G, Chen XH and Bernhard C (2008). Superconducting energy gap and c-axis plasma frequency of (Nd,Sm)FeAsO0.82F0.18 superconductors from infrared ellipsometry. Phys Rev Lett  vol. 101, (9) 10.1103/PhysRevLett.101.097011

Drew AJ, Pratt FL, Hoppler J, Schulz L, Malik-Kumar V, Morley NA, Desai P, Shakya P, Kreouzis T, Gillin WP, Kim KW, Dubroka A and Scheuermann R (2008). Intrinsic mobility limit for anisotropic electron transport in Alq3. Phys Rev Lett  vol. 100, (11) 10.1103/PhysRevLett.100.116601

2007

Bernhard C, Niedermayer C, Drew A, Khaliullin G, Bayrakci S, Strempfer J, Kremer RK, Chen DP, Lin CT and Keimer B (2007). Muon-spin rotation study of magnetism in NaxCoO(2) single crystals with 0.78 <= x <= 0.97. Epl-Europhys Lett  vol. 80, (2) 10.1209/0295-5075/80/27005

2006

Menon GI, Drew A, Divakar UK, Lee SL, Gilardi R, Mesot J, Ogrin FY, Charalambous D, Forgan EM, Momono N, Oda M, Dewhurst C and Baines C (2006). Muons as local probes of three-body correlations in the mixed state of type-II superconductors. Phys Rev Lett  vol. 97, (17) 10.1103/PhysRevLett.97.177004

Charalambous D, Forgan EM, Ramos S, Brown SP, Lycett RJ, Ucko DH, Drew AJ, Lee SL, Fort D, Amato A and Zimmerman U (2006). Driven vortices in type-II superconductors: A muon spin rotation study. Phys Rev B  vol. 73, (10) 10.1103/PhysRevB.73.104514

2005

Drew AJ, Lee SL, Charalambous D, Potenza A, Marrows C, Luetkens H, Suter A, Prokscha T, Khasanov R, Morenzoni E, Ucko D and Forgan EM (2005). Coexistence and coupling of superconductivity and magnetism in thin film structures. Phys Rev Lett  vol. 95, (19) 10.1103/PhysRevLett.95.197201

2004

Gilardi R, Mesot J, Brown SP, Forgan EM, Drew A, Lee SL, Cubitt R, Dewhurst CD, Uefuji T and Yamada K (2004). Square vortex lattice at anomalously low magnetic fields in electron-doped Nd1.85Ce0.15CuO4. Phys Rev Lett  vol. 93, (21) 10.1103/PhysRevLett.93.217001

Divakar U, Drew AJ, Lee SL, Gilardi R, Mesot J, Ogrin FY, Charalambous D, Forgan EM, Menon GI, Momono N, Oda M, Dewhurst CD and Baines C (2004). Direct observation of the flux-line vortex glass phase in a type II superconductor. Phys Rev Lett  vol. 92, (23) 10.1103/PhysRevLett.92.237004

2002

Gilardi R, Mesot J, Drew A, Divakar U, Lee SL, Forgan EM, Zaharko O, Conder K, Aswal VK, Dewhurst CD, Cubitt R, Momono N and Oda M (2002). Direct evidence for an intrinsic square vortex lattice in the overdoped high-T-c superconductor La1.83Sr0.17CuO4+delta. Phys Rev Lett  vol. 88, (21) 10.1103/PhysRevLett.88.217003

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