Search Results - "Christen, H. M."

Full Electroresistance Modulation in a Mixed-Phase Metallic Alloy by Liu, Z Q, Li, L, Gai, Z, Clarkson, J D, Hsu, S L, Wong, A T, Fan, L S, Lin, M-W, Rouleau, C M, Ward, T Z, Lee, H N, Sefat, A S, Christen, H M, Ramesh, R

“…We report a giant, ∼22%, electroresistance modulation for a metallic alloy above room temperature. It is achieved by a small electric field of 2  kV/cm via…”
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Super switching and control of in-plane ferroelectric nanodomains in strained thin films by Matzen, S., Nesterov, O., Rispens, G., Heuver, J. A., Biegalski, M., Christen, H. M., Noheda, B.

“…With shrinking device sizes, controlling domain formation in nanoferroelectrics becomes crucial. Periodic nanodomains that self-organize into so-called…”
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Electrically reversible cracks in an intermetallic film controlled by an electric field by Liu, Z. Q., Liu, J. H., Biegalski, M. D., Hu, J.-M., Shang, S. L., Ji, Y., Wang, J. M., Hsu, S. L., Wong, A. T., Cordill, M. J., Gludovatz, B., Marker, C., Yan, H., Feng, Z. X., You, L., Lin, M. W., Ward, T. Z., Liu, Z. K., Jiang, C. B., Chen, L. Q., Ritchie, R. O., Christen, H. M., Ramesh, R.

“…Cracks in solid-state materials are typically irreversible. Here we report electrically reversible opening and closing of nanoscale cracks in an intermetallic…”
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Hidden Magnetic States Emergent Under Electric Field, In A Room Temperature Composite Magnetoelectric Multiferroic by Clarkson, J. D., Fina, I., Liu, Z. Q., Lee, Y., Kim, J., Frontera, C., Cordero, K., Wisotzki, S., Sanchez, F., Sort, J., Hsu, S. L., Ko, C., Aballe, L., Foerster, M., Wu, J., Christen, H. M., Heron, J. T., Schlom, D. G., Salahuddin, S., Kioussis, N., Fontcuberta, J., Marti, X., Ramesh, R.

“…The ability to control a magnetic phase with an electric field is of great current interest for a variety of low power electronics in which the magnetic state…”
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Stoichiometry control of complex oxides by sequential pulsed-laser deposition from binary-oxide targets by Herklotz, A., Dörr, K., Ward, T. Z., Eres, G., Christen, H. M., Biegalski, M. D.

“…To have precise atomic layer control over interfaces, we examine the growth of complex oxides through the sequential deposition from binary targets by pulsed…”
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Strain dependence of transition temperatures and structural symmetry of BiFeO3 within the tetragonal-like structure by Siemons, W., MacDougall, G. J., Aczel, A. A., Zarestky, J. L., Biegalski, M. D., Liang, S., Dagotto, E., Nagler, S. E., Christen, H. M.

“…The influence of strain-imposed in-plane lattice symmetry on the structural and magnetic properties of tetragonal-like BiFeO3 is investigated by x-ray and…”
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Spectroscopic imaging of single atoms within a bulk solid by Varela, M, Findlay, S D, Lupini, A R, Christen, H M, Borisevich, A Y, Dellby, N, Krivanek, O L, Nellist, P D, Oxley, M P, Allen, L J, Pennycook, S J

“…The ability to localize, identify, and measure the electronic environment of individual atoms will provide fundamental insights into many issues in materials…”
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Rapid Growth of Long, Vertically Aligned Carbon Nanotubes through Efficient Catalyst Optimization Using Metal Film Gradients by Christen, H. M, Puretzky, A. A, Cui, H, Belay, K, Fleming, P. H, Geohegan, D. B, Lowndes, D. H

“…Pulsed laser deposited, orthogonally overlapping metal film gradients are introduced as a versatile method to optimize desired nanomaterial characteristics…”
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Large resistivity modulation in mixed-phase metallic systems by Lee, Yeonbae, Liu, Z. Q., Heron, J. T., Clarkson, J. D., Hong, J., Ko, C., Biegalski, M. D., Aschauer, U., Hsu, S. L., Nowakowski, M. E., Wu, J., Christen, H. M., Salahuddin, S., Bokor, J. B., Spaldin, N. A., Schlom, D. G., Ramesh, R.

“…In numerous systems, giant physical responses have been discovered when two phases coexist; for example, near a phase transition. An intermetallic FeRh system…”
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Superconducting MgB2 films via precursor postprocessing approach by Paranthaman, M., Cantoni, C., Zhai, H. Y., Christen, H. M., Aytug, T., Sathyamurthy, S., Specht, E. D., Thompson, J. R., Lowndes, D. H., Kerchner, H. R., Christen, D. K.

“…Superconducting MgB2 films with Tc=38.6 K were prepared using a precursor-deposition, ex situ postprocessing approach. Precursor films of boron, ∼0.5 μm thick,…”
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Long-range ferroelectric interactions in KTaO3/KNbO3 superlattice structures by Christen, H.-M., Specht, E. D., Norton, D. P., Chisholm, M. F., Boatner, L. A.

“…Symmetric superlattice structures consisting of alternating atomic-scale layers of KTaO3 and KNbO3 with variable periodicity were grown on KTaO3 substrates by…”
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Phase Transitions, Phase Coexistence, and Piezoelectric Switching Behavior in Highly Strained BiFeO3 Films by Beekman, C., Siemons, W., Ward, T. Z., Chi, M., Howe, J., Biegalski, M. D., Balke, N., Maksymovych, P., Farrar, A. K., Romero, J. B., Gao, P., Pan, X. Q., Tenne, D. A., Christen, H. M.

“…Highly strained BiFeO3 films transition into a true tetragonal state at 430 °C but remain polar to much higher temperatures (∼800 °C). Piezoelectric switching…”
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Lanthanum zirconate: A single buffer layer processed by solution deposition for coated conductor fabrication by Sathyamurthy, S., Paranthaman, M., Zhai, H-Y., Christen, H. M., Martin, P. P., Goyal, A.

“…A single layer of La2Zr2O7 (LZO), deposited on textured Ni and Ni–1.7% Fe–3% W (Ni–W) tapes by a low-cost sol-gel process, is used as buffer layer for the…”
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Giant Controllable Magnetization Changes Induced by Structural Phase Transitions in a Metamagnetic Artificial Multiferroic by Bennett, S. P., Wong, A. T., Glavic, A., Herklotz, A., Urban, C., Valmianski, I., Biegalski, M. D., Christen, H. M., Ward, T. Z., Lauter, V.

“…The realization of a controllable metamagnetic transition from AFM to FM ordering would open the door to a plethora of new spintronics based devices that,…”
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Surface stability of epitaxial SrRuO3 films by SHIN, Junsoo, KALININ, S. V, LEE, H. N, CHRISTEN, H. M, MOORE, R. G, PLUMMER, E. W, BADDORF, A. P

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Applying uniform reversible strain to epitaxial oxide films by Biegalski, M. D., Dörr, K., Kim, D. H., Christen, H. M.

“…We demonstrate using four-circle x-ray diffraction that the piezoelectric substrate of Pb ( Mg 1 / 3 Nb 2 / 3 ) 0.72 Ti 0.28 O 3 ( 001 ) induces uniform…”
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Growth mechanism of superconducting MgB2 films prepared by various methods by Zhai, H. Y., Christen, H. M., Zhang, L., Paranthaman, M., Cantoni, C., Sales, B. C., Fleming, P. H., Christen, D. K., Lowndes, D. H.

“…The growth mechanisms of MgB2 films obtained by different methods on various substrates are comparably studied by transport measurements and scanning electron…”
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Chemical solution deposition of lanthanum zirconate barrier layers applied to low-cost coated-conductor fabrication by Sathyamurthy, S., Paranthaman, M., Zhai, H.Y., Kang, S., Aytug, T., Cantoni, C., Leonard, K.J., Payzant, E.A., Christen, H.M., Goyal, A., Li, X., Schoop, U., Kodenkandath, T., Rupich, M.W.

“…Epitaxial lanthanum zirconate (LZO) buffer layers have been grown by sol-gel processing on Ni–W substrates. We report on the application of these oxide films…”
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Strong strain dependence of ferroelectric coercivity in a BiFeO3 film by Biegalski, M. D., Kim, D. H., Choudhury, S., Chen, L. Q., Christen, H. M., Dörr, K.

“…The ferroelectric polarization loop of an epitaxial BiFeO3 film on a piezoelectric substrate has been investigated as a function of continuously and reversibly…”
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The growth and properties of epitaxial KNbO3 thin films and KNbO3/KTaO3 superlattices by Christen, H.-M., Boatner, L. A., Budai, J. D., Chisholm, M. F., Géa, L. A., Marrero, P. J., Norton, D. P.

“…Potassium niobate (KNbO3) thin films and potassium niobate/tantalate (KNbO3/KTaO3) superlattices have been grown on KTaO3 (001) substrates by pulsed laser…”
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