@article{jaipan_nannuri_mucha_singh_xu_moatti_narayan_fialkova_kotoka_yarmolenko_et al._2018, title={Influence of Gold Catalyst on the Growth o Titanium Nitride Nanowires}, volume={7}, ISSN={["2169-4303"]}, DOI={10.1166/mat.2018.1571}, number={5}, journal={MATERIALS FOCUS}, author={Jaipan, Panupong and Nannuri, Chandra and Mucha, Nikhil Reddy and Singh, Mayur P. and Xu, Zhigang and Moatti, Adele and Narayan, Jay and Fialkova, Svitlana and Kotoka, Ruben and Yarmolenko, Sergey and et al.}, year={2018}, month={Oct}, pages={720–725} }
 @article{gupta_narayan_kumar_2009, title={Magnetic Properties of Self-Assembled Ni Nanoparticles in Two Dimensional Structures}, volume={9}, ISSN={["1533-4899"]}, DOI={10.1166/jnn.2009.214}, abstractNote={A pulsed laser deposition technique has been used to synthesize a uniform distribution of Ni nanoparticles of controllable size in Al2O3 thin film matrix. The ability to control particle size in confined layers provides a very convenient means to tune the magnetic properties from superparamagnetic to ferromagnetic. The coercivity of these particles was measured at various temperatures as a function of particle size. The results indicate that the magnetic transition from single- to multi-domain region occurs at a larger particle size at higher temperature than at lower temperature. Stronger magnetic interaction among particles at lower temperatures is believed to lead to the formation of smaller sized domains for any given particle size in order to minimize the interaction energy.}, number={6}, journal={JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY}, author={Gupta, A. and Narayan, J. and Kumar, Dhananjay}, year={2009}, month={Jun}, pages={3993–3996} }
 @article{aggarwal_nori_jin_pant_trichy_kumar_narayan_narayan_2009, title={Magnetic properties and their dependence on deposition parameters of Co/Al2O3 multilayers grown by pulsed laser deposition}, volume={57}, ISSN={["1359-6454"]}, DOI={10.1016/j.actamat.2009.01.018}, abstractNote={Co/Al2O3 multilayered thin films were grown on Si (111) substrates by pulsed laser deposition (PLD) at temperatures from room temperature (RT) to 600 °C. The Co/Al2O3 multilayered thin film grown at RT contains continuous cobalt layers in alumina matrices, with no evidence of island formation. On the other hand, cobalt showed a tendency to form islands in alumina matrices for growth temperatures in the range of 300–600 °C. All the Co/Al2O3 multilayered thin films showed ferromagnetic behavior up to RT. It was observed that variations in the deposition parameters can significantly influence the magnetic properties of Co/Al2O3 multilayers. Depending on the temperature and pulse rate, RT coercivities in the 50–300 Oe range were observed. Films deposited at 600 °C using a laser pulse rate of 10 Hz exhibited a decrease of coercivity with increasing measurement temperature. On the other hand, films deposited at 600 °C using a reduced pulse rate of 2 Hz demonstrated an “anomalous” relationship between low-temperature coercivity and temperature. In these films, coercivity exhibited a weak tendency to increase with temperature. Squareness (Mr/Ms) of the hysteresis loops and its dependence on the temperature was also shown to be strongly affected by the deposition parameters. These observations have been rationalized on the basis of two competing magnetic anisotropies that act along different directions in the material.}, number={6}, journal={ACTA MATERIALIA}, author={Aggarwal, Ravi and Nori, Sudhakar and Jin, Chunming and Pant, Punam and Trichy, Gopinath R. and Kumar, Dhananjay and Narayan, J. and Narayan, Roger J.}, year={2009}, month={Apr}, pages={2040–2046} }
 @article{ramachandran_prater_sudhakar_kumar_narayan_2008, title={Magnetic properties of epitaxial oxide heterostructures}, volume={145}, ISSN={["1879-2766"]}, DOI={10.1016/j.ssc.2007.10.005}, abstractNote={Diluted Magnetic Semiconductors (DMS) are of great interest as injection sources for spin-polarized currents into semiconductors. Epitaxial devices have been synthesized with an intermediate spacer layer of the same semiconductor (zinc oxide, ZnO) used to produce the DMS material (ZnCoO) ensuring a homoepitaxial junction to help reduce the interface states and conduction mismatch. We observe a large magnetoresistance of about 32% in the devices at low temperatures. The present work suggests that spin polarized transport could be achieved with DMS materials acting as the source of injected spins into a non-magnetic host.}, number={1-2}, journal={SOLID STATE COMMUNICATIONS}, author={Ramachandran, S. and Prater, J. T. and Sudhakar, N. and Kumar, D. and Narayan, J.}, year={2008}, month={Jan}, pages={18–22} }
 @article{jin_nori_wei_aggarwal_kumar_narayan_2008, title={Pulsed Laser Deposition of Nanoporous Cobalt Thin Films}, volume={8}, ISSN={["1533-4899"]}, DOI={10.1166/jnn.2008.483}, abstractNote={Nanoporous cobalt thin films were deposited on anodized aluminum oxide (AAO) membranes at room temperature using pulsed laser deposition. Scanning electron microscopy demonstrated that the nanoporous cobalt thin films retained the monodisperse pore size and high porosity of the anodized
 aluminum oxide substrates. Temperature- and field-dependent magnetic data obtained between 10 K and 350 K showed large hysteresis behavior in these materials. The increase of coercivity values was larger for nanoporous cobalt thin films than for multilayered cobalt/alumina thin films. The
 average diameter of the cobalt nanograins in the nanoporous cobalt thin films was estimated to be ∼5 nm for blocking temperatures near room temperature. These results suggest that pulsed laser deposition may be used to fabricate nanoporous magnetic materials with unusual properties for
 biosensing, drug delivery, data storage, and other technological applications.}, number={11}, journal={JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY}, author={Jin, Chunming and Nori, Sudhakar and Wei, Wei and Aggarwal, Ravi and Kumar, Dhananjay and Narayan, Roger J.}, year={2008}, month={Nov}, pages={6043–6047} }
 @article{kumar_narayan_nath_sharma_kvit_jin_2001, title={Tunable magnetic properties of metal ceramic composite thin films}, volume={119}, ISSN={["0038-1098"]}, DOI={10.1016/S0038-1098(01)00213-7}, abstractNote={We have developed a novel thin film processing method based upon pulsed laser deposition to process nanocrystalline magnetic materials with accurate size and interface control. Using this method, single domain nanocrystalline Fe and Ni particles in 5–10 nm size range embedded in amorphous as well as crystalline alumina have been produced. Magnetization measurements of these layered thin films as function of field and temperature were carried out using a superconducting quantum interference device magnetometer. The size of Fe and Ni nanodots measured using transmission electron microscopy and calculated using magnetic data are in excellent agreement with each other.}, number={2}, journal={SOLID STATE COMMUNICATIONS}, author={Kumar, D and Narayan, J and Nath, TK and Sharma, AK and Kvit, A and Jin, C}, year={2001}, pages={63–66} }
 @article{kumar_kalyanaraman_vispute_narayan_christen_klabunde_1997, title={Giant magnetoresistance and non-ohmic effects in La0.6Y0.07Ca0.33MnOx thin films}, volume={45}, ISSN={["0921-5107"]}, DOI={10.1016/s0921-5107(96)01975-7}, abstractNote={Transport, magnetoresistance and structural properties of La0.6Y0.07Ca0.03MnOx(LYCMO) thin films grown in situ by pulsed laser ablation have been studied. Transmission electron microscopy and X-ray diffraction measurements have shown that the LYCMO films grow epitaxially on (100) LaAlO3 substrates and are cubic with a lattice parameter of 0.3849 run. The as-deposited films exhibited a metal-insulator transition at 130 K and a giant magnetoresistance at 125 K with a MR ratio (ΔR/RH) of 1500% in 6 Tesla magnetic field. By subsequent annealing of LYCMO films at 900 °C for half an hour in an oxygen ambient, this MR ratio was improved to 3200% at 192 K in the presence of the same magnetic field. This value of the MR ratio is the highest so far reported in this temperature regime. We ascribe this colossal magnetoresistance to the improved magnetic exchange between Mn3+ and Mn4+ ions resulting from the suppressed separation between Mn-O layers caused by a smaller sized Y-cation. We also report a non-ohmic response in the LYCMO films which is observed only in the region of the resistance peak and lends support to a conduction mechanism in these materials based on spin-dependent scattering of electrons.}, number={1-3}, journal={MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY}, author={Kumar, D and Kalyanaraman, R and Vispute, RD and Narayan, J and Christen, DK and Klabunde, CE}, year={1997}, month={Mar}, pages={122–125} }
 @article{kumar_oktyabrsky_kalyanaraman_narayan_apte_pinto_manoharan_hegde_ogale_adhi_et al._1997, title={Role of silver doping in oxygen incorporation of oxide thin film}, volume={45}, ISSN={["0921-5107"]}, DOI={10.1016/s0921-5107(96)01920-4}, abstractNote={A distinctive characteristic of silver in oxygen incorporation of oxide thin films during pulsed laser ablation has been discovered. Optical emission spectroscopy studies of laser-induced plume of Ag-target indicates the presence of AgO species whose concentration increases with an increase in oxygen partial pressure. The formation of AgO in laser-plume has been found to be very useful for the realization of high temperature superconducting YBa2Cu3O7−δ (YBCO) and giant magnetoresistive La0.7MnO 3−δ (LMO) thin films with dramatically superior quality if the target materials contained a small amount of silver. The improvement in the quality of these films is brought about by the supply of atomic oxygen to oxide lattices during their formation. This becomes possible due to the fact that Ag, after it is ablated with other constituent materials in the target, gets moderately oxidized in an oxygen atmosphere and the oxidized species dissociate back into Ag and nascent O at the substrate surface. The nascent oxygen is very highly reactive and is easily assimilated into the lattice of these compounds.}, number={1-3}, journal={MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY}, author={Kumar, D. and Oktyabrsky, S. and Kalyanaraman, R. and Narayan, Jagdish and Apte, P. R. and Pinto, R. and Manoharan, S. S. and Hegde, M. S. and Ogale, S. B. and Adhi, K. P and et al.}, year={1997}, month={Mar}, pages={55–58} }