By Professor Nagarajan Valanoor

Journal articles

Vasudevan R; Liu Y; Li J; Liang W; Kumar A; Jesse S; Chen Y; Chu Y; Valanoor N; Kalinin SV, 2011, 'Nanoscale control of phase variants in strain-engineered BiFeO3', Nano Letters, 11, pp. 3346 - 3354, http://dx.doi.org/10.1021/nl201719w

Magaraggia ; Hambe M; Kostylev ; Valanoor N; Stamps , 2011, 'Probing La0.7Sr0.3MnO3 multilayers via spin wave resonances', Physical Review B, 84, pp. Art. No. 104441, http://dx.doi.org/10.1103/PhysRevB.84.104441

Ehara Y; Yasui S; Nagata J; Kan D; Anbusathaiah V; Yamada T; Sakata O; Funakubo H; Valanoor N, 2011, 'Ultrafast switching of ferroelastic nanodomains in bilayered ferroelectric thin films', Applied Physics Letters, 99, pp. 182906, http://dx.doi.org/10.1063/1.3657468

Wei ZP; Arredondo MA; Peng HY; Zhang ZP; Guo DL; Xing GZ; Li YF; Wong LM; Wang SJ; Valanoor N; Wu T, 2010, 'A template and catalyst-free metal-etching-oxidation method to synthesize aligned oxide nanowire arrays: NiO as an example', ACS NANO, 4, pp. 4785 - 4791, http://dx.doi.org/10.1021/nn1005396

Arredondo M; Ramasse QMR; Bogle KA; Valanoor N, 2010, 'Chemistry of the Fe2O3/BiFeO3 Interface in BiFeO3 Thin Film Heterostructures', Materials, 3, pp. 5274 - 5282, http://dx.doi.org/10.3390/ma3125274

Wicks SE; Seal K; Jesse S; Anbusathaiah V; Leach S; Garcia RE; Kalinin SV; Valanoor N, 2010, 'Collective dynamics in nanostructured polycrystalline ferroelectric thin films using local time-resolved measurements and switching spectroscopy', ACTA Materialia, 58, pp. 67 - 75, http://dx.doi.org/10.1016/j.actamat.2009.08.057

Hambe M; Petraru A; Pertsev NA; Munroe PR; Valanoor N; Kohlstedt H, 2010, 'Crossing an Interface: Ferroelectric Control of Tunnel Currents in Magnetic Complex Oxide Heterostructures', Advanced Functional Materials, 20, pp. 2436 - 2441, http://dx.doi.org/10.1002/adfm.201000265

Arredondo M; Ramasse QM; Weyland M; Mahjoub R; Vrejoiu I; Hesse D; Browning N; Alexe M; Munroe PR; Valanoor N, 2010, 'Direct Evidence for Cation Non-Stoichiometry and Cottrell Atmospheres Around Dislocation Cores in Functional Oxide Interfaces', Advanced Materials, 22, pp. 2430 - 2434, http://dx.doi.org/10.1002/adma.200903631

Anbusathaiah V; Jesse S; Arredondo M; Kartawidjaja F; Ovchinnikov OS; Wang J; Kalinin SV; Valanoor N, 2010, 'Ferroelastic domain wall dynamics in ferroelectric bilayers', ACTA Materialia, 58, pp. 5316 - 5325, http://dx.doi.org/10.1016/j.actamat.2010.06.004

Anbusathaiah V; Kartawidjaja F; Valanoor N; Wang J, 2010, 'Microstructure and texture development in single layered and heterolayered PZT thin films', Journal of Materials Science, 45, pp. 6187 - 6199, http://dx.doi.org/10.1007/s10853-010-4712-0

Cheng C; Kan D; Anbusathaiah V; Takeuchi I; Valanoor N, 2010, 'Microstructure-electromechanical property correlations in rare-earth-substituted BiFeO3 epitaxial thin films at morphotropic phase boundaries', Applied Physics Letters, 97, pp. 212905-1 - 212905-3

Valanoor N; Qiu QY; Alpay S; Mahjoub R, 2010, 'Misfit strain-film thickness phase diagrams and related electromechanical properties of epitaxial ultra-thin lead zirconate titanate films', ACTA Materialia, 58, pp. 823 - 835, http://dx.doi.org/10.1016/j.actamat.2009.09.060

Valanoor N; Rana A; Bogle KA; Game O; Patil S; Ogale SB, 2010, 'Nanoscale modulation of electronic states across unit cell steps on the surface of an epitaxial colossal magneto resistance manganite film', Applied Physics Letters, 96, pp. 263108-1 - 263108-3, http://dx.doi.org/10.1063/1.3455886

Cheng C; Borisevich A; Kan D; Takeuchi I; Valanoor N, 2010, 'Nanoscale Structural and Chemical Properties of Antipolar Clusters in Sm-Doped BiFeO3 Ferroelectric Epitaxial Thin Films', Chemistry of materials, 22, pp. 2588 - 2596

Emery SB; Cheng C; Kan D; Rueckert FJ; Alpay SP; Valanoor N; Takeuchi I; Wells BO, 2010, 'Phase coexistence near a morphotropic phase boundary in Sm-doped BiFeO3 films', Applied Physics Letters, 97, pp. 152902-1 - 152902-3

Valanoor N; Alpay S; Qiu QY, 2010, 'Phase diagrams, dielectric response, and piezoelectric properties of epitaxial ultrathin (001) lead zirconate titanate films under anisotropic misfit strains', Journal of Applied Physics, 107, pp. 114105 Published, http://dx.doi.org/10.1063/1.3386465

Imai A; Valanoor N; Takahashi R; Lippmaa M; Matsumoto Y, 2010, 'Self-Template Growth of Ferroelectric Bi4Ti3O12 Nanoplates via Flux-Mediated Epitaxy with VOx', Crystal Growth and Design, 10, pp. 5233 - 5237, http://dx.doi.org/10.1021/cg101038z

Valanoor N; Bogle KA; Anbusathaiah V; Arredondo M; lin J; Chu Y; O Neill C; Gregg J; Castell M, 2010, 'Synthesis of Epitaxial Metal Oxide Nanocrystals via a Phase Separation Approach', ACS NANO, 4, pp. 5126 - 5139, http://dx.doi.org/10.1021/nn1010123

Valanoor N; Mahjoub R; Alpay S, 2010, 'Theory of Giant Electromechanical Response from Ferroelectric Bilayers with Polydomain Structures due to Interlayer and Interdomain Coupling', Physical Review Letters, http://dx.doi.org/10.1103/PhysRevLett.105.197601

Kan D; Palova L; Anbusathaiah V; Cheng C; Fujino S; Valanoor N; Rabe KM; Takeuchi I, 2010, 'Universal Behavior and Electric-Field-Induced Structural Transition in Rare-Earth-Substituted BiFeO3', Advanced Functional Materials, 20, pp. 1108 - 1115, http://dx.doi.org/10.1002/adfm.200902017

Mahjoub R; Anbusathaiah V; Nagarajan V, 2009, 'Ferroelastic interactions in bilayered ferroelectric thin films', Journal of Materials Science, 44, pp. 5383 - 5392, http://dx.doi.org/10.1007/s10853-009-3647-9

Valanoor N; Bogle KA; Ogale SB; Bachhav MN; Deo MS, 2009, 'Enhanced nonvolatile resistive switching in dilutely cobalt doped TiO2', Applied Physics Letters, 95, pp. 203502-1 - 203502-3, http://dx.doi.org/10.1063/1.3263713

Mahjoub R; Anbusathaiah V; Valanoor N, 2009, 'Ferroelastic interactions in bilayered ferroelectric thin films', Journal of Materials Science, 44, pp. 5383 - 5392, http://dx.doi.org/10.1007/s10853-009-3788-x

Varatharajan A; Kan D; Kartawidjaja F; Mahjoub MR; Arredondo M; Wicks SE; Takeuchi I; Wang J; Valanoor N, 2009, 'Labile ferroelastic nanodomains in bilayered ferroelectric thin films', Advanced Materials, 21, pp. 3497 - 3502, http://dx.doi.org/10.1002/adma.200803701

Alpay S; Valanoor N; Rossetti G, 2009, 'Recent developments in ferroelectric nanostructures and multilayers', Journal of Materials Science, 44, pp. 5021 - 5024, http://dx.doi.org/10.1007/s10853-009-3788-x

Arredondo M; Saunders M; Petraru A; Kohlstedt H; Vrejoiu I; Alexe M; Hesse D; Browning N; Munroe PR; Valanoor N, 2009, 'Structural defects and local chemistry across ferroelectric-electrode interfaces in epitaxial heterostructures', Journal of Materials Science, 44, pp. 5297 - 5306

Cheng C; Kan D; Lim S; Mckenzie WR; Munroe PR; Salamanca-Riba L; Withers RL; Takeuchi I; Valanoor N, 2009, 'Structural transitions and complex domain structures across a ferroelectric-to-antiferroelectric phase boundary in epitaxial Sm-doped BiFeO3 thin films', Physical Review - Section B - Condensed Matter, 80, pp. 014109-1 - 014109-11, http://dx.doi.org/10.1103/PhysRevB.80.014109

Valanoor N; Varatharajan A; Fujino S; Murakami M; Lim S; Fennie C; Wuttig M; Salamanca-Riba L; Takeuchi I, 2008, 'Combinatorial discovery of a lead-free morphotropic phase boundary in a thin-film piezoelectric perovskite', Applied Physics Letters, 92, pp. 202904 - 202906

Valanoor N; Wicks SE; Gregg J; Hambe M, 2008, 'Creation of damage-free feroelectric nanostructures via focused ion beam milling', Nanotechnology, 19, pp. 175302 - 175307

Hoffman MJ; Imlao S; Jones JL; Studer AJ; Valanoor N, 2008, 'Ferroelastic domain switching fatigue in lead zirconate titanate ceramics', ACTA Materialia, 56, pp. 1577 - q587

Alpay S; Valanoor N; Varatharajan A; Mahjoub MR, 2008, 'Ferroelastic domains in bilayered ferroelectric thin films', Journal of Applied Physics, 104, pp. 124103-1 - 124103-5

Valanoor N; Qiu QY; Alpay S, 2008, 'Film thickness versus misfit strain phase diagrams for epitaxial PbTiO3 ultrathin ferroelectric films', Physical Review - Section B - Condensed Matter, 78, pp. 064117-1 - 064117-13

Kohlstedt H; Petraru A; Szot K; Ruediger A; Meuffels P; Haselier H; Waser R; Valanoor N, 2008, 'Method to distinguish ferroelectric from nonferroelectric origin in case of resistive switching in ferroelectric capacitors', Applied Physics Letters, 92

Cheng C; Lim S; Murakami M; Salamanca-Riba L; Takeuchi I; Valanoor N; Varatharajan A, 2008, 'Role of oxygen partial pressure and seed layer chemistry in flux mediated epitaxy of single phase multiferroic BiFeO3 thin films', Applied Physics Letters, 93, pp. 192906-1 - 192906-3

Lim SH; Murakami M; Sarney WL; Ren SQ; Varatharajan A; Nagarajan V; Fujino S; Wuttig M; Takeuchi I; Salamanca-Riba LG, 2007, 'The effects of multiphase formation on strain relaxation and magnetization in multiferroic BiFeO3 thin films', Advanced Functional Materials, 17, pp. 2594 - 2599, http://dx.doi.org/10.1002/adfm.200700055

Valanoor N; Misirlioglu IB; Alpay S, 2007, 'Comment on `Simulation of interface dislocations effect on polarization distribution of ferroelectric thin films`(Appl.Phys.Lett.88,092903 2006)', Applied Physics Letters, 90, pp. 23601 - 23602

Gao X; Wang J; Fujihara K; Ramakrishna SS; Valanoor N; Zhou Z, 2007, 'Giant strain in PbZr0.2Ti0.8O3 nanowires', Applied Physics Letters, 90, pp. 052901-1 - 052901-3

Valanoor N; Varatharajan A; Wicks SE, 2007, 'Nanoscale domain switching behaviour in polycrystalline ferroelectric thin films', Nanotechnology, 18

Anbusathaiah V; Aggarwal S; Valanoor N, 2007, 'Nanoscale polarization relaxation kinetics in polycrystalline ferroelectric thin films', Journal of Applied Physics, 101, pp. 084104-1 - 084014-6, http://dx.doi.org/10.1063/1.2715489

Schuler L; Valanoor N; Miller P; Guy I; Reeves R; Alkaisi M, 2007, 'The effect of substrate material and postannealing on the photoluminescence and piezo properties of DC-sputtered ZnO', Journal of Electronic Materials, 36, pp. 507 - 518

Qiu QY; Valanoor N, 2007, 'Theoretical investigation of polarization scaling in ultrathin epitaxial Pb Zrx Ti1-x O3 films', Journal of Applied Physics, 102, pp. 104113-1 - 104113-12, http://dx.doi.org/10.1063/1.2809334

Valanoor N; JIA C; He JQ; Houben L; Zhao T; Ramesh R; Urban K; Waser R, 2007, 'Unit-cell scale mapping of ferroelectricity and tetragonality in epitaxial ultrathin ferroelectric films', Nature Materials, 6, pp. 64 - 69

Valanoor N; Varatharajan A, 2006, 'Domain wall dynamics in nanoscale ferroelectrics', Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN, pp. 336 - 339, http://dx.doi.org/10.1109/ICONN.2006.340620

Kim DM; Eom CB; Nagarajan V; Ouyang J; Ramesh R; Vaithyanathan V; Schlom DG, 2006, 'Thickness dependence of structural and piezoelectric properties of epitaxial Pb(Zr 0.52Ti 0.48)O 3 films on Si and SrTiO 3 substrates', Applied Physics Letters, 88, http://dx.doi.org/10.1063/1.2185614

Murakami M; Fujino S; Lim S; Long C; Salamanca-Riba L; Wuttig M; Takeuchi I; Valanoor N; Varatharajan A, 2006, 'Fabrication of multiferroic epitaxial BiCrO3 thin films', Applied Physics Letters, 88, pp. 152902 - 152904, http://www.mse.umd.edu/facstaff/takeuchi/88.pdf

Valanoor N; Stanishevsky A; Ramesh R, 2006, 'Ferroelectric nanostructures via a modified focused ion beam technique', Nanotechnology, 17, pp. 338 - 343, http://dx.doi.org/10.1088/0957-4484/17/1/058

Varatharajan A; Valanoor N; Aggarwal S, 2006, 'High-resolution piezoresponse force microscopy investigation of imprint in ferroelectric thin films', Applied Physics Letters, 89, pp. 132912 - 132914

Zhong S; Alpay S; Valanoor N, 2006, 'Piezoelectric and dielectric tunabilities of ultra-thin ferroelectric heterostructures', Journal of Materials Research, 21, pp. 1600 - 1606

Valanoor N; Junquera J; He J; Jia C; Waser R; Lee K; Kim Y; Baik S; Zhao T; Ramesh R; Ghosez P; Rabe K, 2006, 'Scaling of structure and electrical properties in ultrathin epitaxial ferroelectric heterostructures', Journal of Materials Research, 100, pp. 51609 - 051618

Petraru A; Valanoor N; Kohlstedt H; Ramesh R; Schlom DG; Waser R, 2006, 'Simultaneous measurement of the piezoelectric and dielectric response of nanoscale ferroelectric capacitors by an atomic force microscopy based approach', Applied Physics A - Materials Science and Processing, 84, pp. 67 - 71

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