2007 – 2010

2010

542. Ciezak, J. A., T. A. Jenkins, and R. J. Hemley, Optical and Raman microspectroscopy of nitrogen and hydrogen mixtures at high pressure, in Proceedings of the American Physical Society Topical Group on Shock Compression of Condensed Matter (eds. M. L. Ellert, Furnish, M. D., Anderson, W. W., Proud, W. G. and Butler, W. T.), 1195, 1291 (AIP Conference Proceedings, 2010).

541. Hemley, R. J., Percy W. Bridgman's Second Century, High Press. Res., 4, 581-619 (2010).

540. Ahart, M., H. K. Mao, R. E. Cohen, R. J. Hemley, G. Samara, Y. Bing, Z. G. Ye, and S. Kojima, Pressure effects on relaxor ferroelectricity in disordered Pb(Sc1/2Nb1/2)O3, J. Appl. Phys., 107, 074110 (2010).

539. Chellappa, R. S., T. Autrey, M. Somayazulu, V. V. Struzhkin, and R. J. Hemley, High pressure interactions with polyaminoborane and polyiminoborane, Chem. Phys. Chem., 11, 93-96 (2010).

538. Emmons, E. D., V. K. Kamisetty, J. C. Fallas, W. M. Chien, A. M. Covington, R. S. Chellappa, S. A. Gramsch, R. J. Hemley, and D. Chandra, High-pressure Raman spectroscopy of tris(hydroxymethyl)aminomethane, J. Phys. Chem. B, 144, 5649-5656 (2010).

537. Ganesh, P., E. Cockayne, M. Ahart, R. E. Cohen, B. Burton, R. J. Hemley, Y. Ren, W. Yang, and Z. G. Ye, Origin of diffuse scattering in relaxor ferroelectrics, Phys. Rev. B, 81, 144102 (2010).

536. Lazicki, A., Y. Fei, and R. J. Hemley, High pressure differential thermal analysis measurement of the melting curve of lithium, Solid State Comm., 150, 625-627 (2010).

535. Somayazulu, M., P. Dera, A. F. Goncharov, S. A. Gramsch, H. P. Liermann, W. Yang, Z. Liu, H. K. Mao, and R. J. Hemley, Pressure-induced bonding and compound formation in xenon-hydrogen solids, Nature Chem., 2, 50-53 (2010).

534. Subramanian, N., A. F. Goncharov, M. Somayazulu, and R. J. Hemley, Raman spectroscopy of hydrogen confined under extreme conditions, J. Phys.: Conf. Series, 215, 012057 (2010).

533. Tang, Y., A. F. Goncharov, V. V. Struzhkin, R. J. Hemley, and M. Ouyang, Spin of semiconductor quantum dots under pressure, Nano Lett., 10, 358-362 (2010).

532. Wang, L., Y. Ding, W. Yang, W. Liu, Z. Cai, J. Kung, J. Shu, R. J. Hemley, and H. K. Mao, Nanoprobe measurements of materials at megabar pressures, Proc. Nat. Acad. Sci., 107, 6140-6145 (2010).

531. Yamanaka, T., W. L. Mao, R. J. Hemley, and G. Shen, New structure and spin state of iron-rich (Mg,Fe)SiO3 post-perovskite, J. Phys.: Conf. Series, 215, 012100 (2010).

530. Yoshimura, Y., H. K. Mao, and R. J. Hemley, In situ Raman and optical microscopy of relaxation behavior of amorphous ices under pressure, J. Raman Spectrosc., 41, 678-683 (2010).

529. Zhang, C., X. J. Chen, Y. L. Li, V. V. Struzhkin, R. J. Hemley, H. K. Mao, R. Q. Zhang, and H. Q. Lin, Superconductivity in hydrogen-righ material: GeH4, J. Supercond. Nov. Magn., 23, 717-719 (2010).

528. Wang, L., W. Yang, Y. Ding, Y. Ren, S. Xiao, B. Liu, S. V. Sinogeikin, Y. Meng, D. J. Gosztola, G. Shen, R. J. Hemley, W. L. Mao, and H. K. Mao, Size-dependent amorphization of nanoscale Y2O3 at high pressure, Phys. Rev. Lett., 105, 095701 (2010).

527. Chen, X. J., V. V. Struzhkin, Y. Yu, C. T. Lin, R. J. Hemley, and H. K. Mao, Enhancement of superconductivity by pressure-driven phase competition, Nature, 466, 950-953 (2010).

526. McCubbin, F. M., A. Steele, E. Hauri, H. Nekvasil, S. Yamashita, and R. J. Hemley, Nominally hydrous magmatism on the moon, Proc. Nat. Acad. Sci., 107, 11223-11228 (2010).

525. Subramanian, N., V. V. Struzhkin, A. F. Goncharov, and R. J. Hemley, A virtual experiment control and data aquisition system for in situ laser heated diamond anvil cell Raman spectroscopy, Rev. Sci. Instrum., 81, 093906 (2010).

524. Fallas, J. C., E. D. Emmons, W. M. Chien, D. Chandra, V. K. Kamisetty, A. M. Covington, R. Chellappa, H. Hagemann, S. A. Gramsch, and R. J. Hemley, Raman spectroscopy measurements of the pressure-temperature behavior of LiAlH4, J. Phys. Chem. C, 114, 11991-11997 (2010).

523. Shen, G., L. Wang, R. Ferry, H. K. Mao, and R. J. Hemley, A portable laser heating microscope for high pressure research, J. Phys.: Conf. Series, 215, 012191 (2010).

522. Jacobsen, S. D., Z. Liu, T. B. Ballaran, E. F. Littlefield, L. Ehm, and R. J. Hemley, Effect of H2O on upper mantle phase transitions in MgSiO3: Is the depth of the seismic X-discontinuity an indicator of mantle water content?, Phys. Earth Planet. Inter., 183, 234-244 (2010).

521. Lazicki, A., R. J. Hemley, W. E. Pickett, and C. S. Yoo, Structural study of LiB to 70 GPa, Phys. Rev. B, 82, 180102 (2010).

520. Mao, H. K., E. L. Shirley, Y. Ding, P. Eng, Y. Q. Cai, P. Chow, Y. Xiao, J. Shu, R. J. Hemley, C. Kao, and W. L. Mao, Electron structure of crystalline 4He at high pressures, Phys. Rev. Lett., 105, 186404 (2010).

519. Strobel, T. A., X. J. Chen, M. Somayazulu, and R. J. Hemley, Vibrational dynamics, intermolecular interactions, and compound formation in GeH4-H2 under pressure, J. Chem. Phys., 133, 164512 (2010).

2009

518. Beck, P., A. F. Goncharov, J. A. Montoya, V. V. Struzhkin, B. Militzer, R. J. Hemley, and H. K. Mao, Response to "Comment on 'Measurements of the thermal diffusivities at high-pressure using a transient heating technique'" [Appl. Phys. Lett. 95, 096101 (2007)] Appl. Phys. Lett. 95, 096102 (2009).

517. Chellappa, R. S., M. Somayazulu, and R. J. Hemley, Rhenium reactivity with H2O-O2 mixtures at high pressures, High Press. Res., 29, 792-799 (2009).

516. Ravindran, T. R., A. F. Goncharov, M. Somayazulu, and R. J. Hemley, Melting curve of oxygen at high pressure, in Proceedings of the 54th DAE Solid State Physics Symposium (eds. A. K. Rajarajan, Garg, A. B. and Kothiyal, G. P.), 181-182 (Board of Research in Nuclear Sciences, Mumbai, India, 2009).

515. Somayazulu, M., P. Dera, A. F. Goncharov, S. A. Gramsch, H. P. Liermann, W. Yang, Z. Liu, H. K. Mao, and R. J. Hemley, Pressure-induced bonding and compound formation in xenon-hydrogen solids, Nature Chem., 2, 50-53 (2009).

514. Chellappa, R., M. Somayazulu, V. V. Struzhkin, T. Autrey, and R. J. Hemley, Pressure-induced complexation of NH3BH3-H2, J. Chem. Phys. , 131, 224515 (2009).

513. Zhang, C., W. Yi, L. L. Sun, X. J. Chen, R. J. Hemley, H. K. Mao, W. Lu, X. L. Dong, L. G. Bai, J. Liu, A. F. Moreira Dos Santos, J. J. Molaison, C. A. Tulk, G. F. Chen, N. L. Wang, and Z. X. Zhao, Pressure-induced lattice collapse in Fe1.05Te, Phys. Rev. B, 80, 144519 (2009).

512. Struzhkin, V. V., H. K. Mao, and R. J. Hemley, High-pressure synchrotron x-ray spectroscopy, in Perspectives in Materials Characterization (ed. G. Amarendra), 151-178 (Universities Press (India) Private Limited, Hyderabad, India, 2009).

511. Yu, S., Z. Liu, W. Q. Han, and R. J. Hemley, Synchrotron infrared and x-ray studies of bornon nitrides nanotubes under high pressure, in Proceedings of the Joing AIRAPT-22 and HPCJ-50 International Conference on High Pressure Science and Technology 41 (Tokyo, Japan, 2009).

510. Strobel, T. A., M. Somayazulu, and R. J. Hemley, Novel pressure-induced interactions in silane-hydrogen, Phys. Rev. Lett., 103, 065701 (2009).

509. Sharma, A., G. D. Cody, and R. J. Hemley, In situ diamond-anvil cell observations of methanogenesis at high pressures and temperatures, Energ. Fuel., 23, 5571-5579 (2009).

508. Seagle, C. T., D. L. Heinz, Z. Liu, and R. J. Hemley, Synchrotron infrared reflectivity measurements of iron at high pressures, Appl. Optics, 48, 545-552 (2009).

507. Liang, Q., C. S. Yan, Y. Meng, J. Lai, S. Krasnicki, H. K. Mao, and R. J. Hemley, Recent advances in high-growth rate single-crystal CVD diamond, Diamond Rel. Mater., 18, 698-703 (2009).

506. Liang, Q., C. S. Yan, Y. F. Meng, J. Lai, S. Krasnicki, H. K. Mao, and R. J. Hemley, Enhancing the mechanical properties of CVD single-crystal diamond, J. Phys. Cond. Matt., 21, 364215 (2009).

505. Hemley, R. J., G. W. Crabtree, and M. V. Buchanan, Energy challenges for materials in extreme environments, Phys. Today, 62, 32-37 (2009).

504. Goncharov, A. F., J. A. Montoya, N. Subramanian, V. V. Struzhkin, A. I. Kolesnikov, M. Somayazulu, and R. J. Hemley, Laser heating in diamond anvil cells: Developments in pulsed and continuous techniques, J. Synch. Radiation, 16, 769-772 (2009).

503. Toledano, P., H. Katzke, A. F. Goncharov, and R. J. Hemley, Symmetry breaking in dense solid hydrogen, Phys. Rev. Lett., 103, 105301 (2009).

502. Freiman, Y. A., S. M. Tretyak, A. Grechnev, A. F. Goncharov, J. S. Tse, D. Errandonea, H. K. Mao, and R. J. Hemley, Lattice distortion of hcp solid helium under pressure, Phys. Rev. B, 80, 094112 (2009).

501. Ahart, M., A. Hushur, Y. Bing, Z. G. Ye, R. J. Hemley, and S. Kojima, Critical slowing down of relaxation dynamics near the Curie temperature in the relaxor Pb(Sc0.5Nb0.5)O3, Appl. Phys. Lett., 94, 142906 (2009).

500. Zha, C. S., S. Krasnicki, Y. F. Meng, C. S. Yan, J. Lai, Q. Liang, H. K. Mao, and R. J. Hemley, Composite chemical vapor deposition diamond anvils for highpressure/high-temperature experiments, High Press. Res., 29, 317-324 (2009).

499. Ahart, M., M. Somayazulu, Z. G. Ye, R. E. Cohen, H. K. Mao, and R. J. Hemley, High pressure Brillouin scattering of Pb(Mg1/3Nb2/3)O3, Phys. Rev. B, 79, 132103 (2009).

498. Goncharov, A. F., R. J. Hemley, and E. Gregoryanz, Comment on "The melting line of hydrogen at high pressures", Phys. Rev. Lett., 102, 149601 (2009).

497. Lazicki, A., A. F. Goncharov, V. V. Struzhkin, R. E. Cohen, Z. Liu, E. Gregoryanz, C. Guillaume, H. K. Mao, and R. J. Hemley, Anomalous optical and electronic properties of dense sodium, Proc. Nat. Acad. Sci., 106, 6525-6528 (2009).

496. Liang, Q., C. Y. Chin, J. Lai, C. S. Yan, Y. F. Meng, H. K. Mao, and R. J. Hemley, Enhanced growth of high quality single crystal diamond by MPCVD at high gas pressures, Appl. Phys. Lett., 94, 024103 (2009).

495. Feldman, J. L., J. K. Johnson, and R. J. Hemley, Vibron hopping and bond anharmonicity in hot dense hydrogen, J. Chem. Phys., 130, 054502 (2009).

2008

494. Liang, Q., C. S. Yan, Y. Meng, J. Lai, S. Krasnicki, T. Yu, H. Shu, H. K. Mao, and R. J. Hemley, Ultratough single crystal diamonds by MPCVD, Proceedings of Intertech 2008, (2008).

493. Ahart, M., M. Somayazulu, P. Dera, H. K. Mao, R. E. Cohen, R. J. Hemley, R. Yang, H. P. Liermann, and Z. Wu, Origin of morphotropic phase boundaries in ferroelectrics, Nature, 451, 545-548 (2008).

492. Chen, X. J., V. V. Struzhkin, Y. Song, A. F. Goncharov, M. Ahart, Z. Liu, H. K. Mao, and R. J. Hemley, Pressure-induced metallization of solid silane, Proc. Nat. Acad. Sci., 105, 20-23 (2008).

491. Chen, X. J., J. L. Wang, V. V. Struzhkin, H. K. Mao, R. J. Hemley, and H. Q. Lin, Superconducting behavior in compressed solid SiH4 with a layered structure, Phys. Rev. Lett., 101, 077002 (2008).

490. El Goresy, A., P. Dera, T. Sharp, C. T. Prewitt, M. Chen, L. S. Dubrovinsky, B. Wopenka, N. Boctor, and R. J. Hemley, Seiferite, a dense orthorhombic polymorph of silica from the Martian meteorites Shergotty and Zagami, Eur. J. Mineral., 20, 523-528 (2008).

489. Freiman, Y. A., I. N. Goncharenko, N. Tret'yak, A. Grechnev, J. S. Tse, D. Errandonea, H. K. Mao, and R. J. Hemley, Raman scattering and lattice distortion of hcp rare gas solids under pressure, Phys. Rev. B, 78, 014301 (2008).

488. Goncharov, A. F., P. Beck, V. V. Struzhkin, R. J. Hemley, and J. C. Crowhurst, Laser heating diamond anvil cell studies of simple molecular systems at high pressures and temperatures, J. Phys. Chem. Solids, 69, 2217-2222 (2008).

487. Goncharov, A. F., J. C. Crowhurst, V. V. Struzhkin, and R. J. Hemley, Triple point on the melting curve and polymorphism of nitrogen at high pressure, Phys. Rev. Lett., 101, 095502 (2008).

486. Lipinska-Kalita, K., O. A. Hemmers, P. E. Kalita, G. Mariotto, S. A. Gramsch, R. J. Hemley, and T. Hartmann, High-pressure structural integrity and structural transformations of glass-derived nanocomposites: A review, J. Phys. Chem. Solids, 69, 2268-2273 (2008).

485. Liu, H., L. Wang, X. Xiao, F. De Carlo, J. Feng, H. K. Mao, and R. J. Hemley, Anomalous pressure-induced behavior of amorphous selenium from synchrotron x-ray diffraction and microtomography, Proc. Nat. Acad. Sci., 105, 13229-13234 (2008).

484. Mao, W. L., V. V. Struzhkin, A. Q. R. Baron, S. Tsutsui, C. E. Tommaseo, H. R. Wenk, M. Y. Hu, P. Chow, W. Sturhahn, J. Shu, R. J. Hemley, D. L. Heinz, and H. K. Mao, Experimental determination of the elasticity of iron at high pressure, J. Geophys. Res., 113, B09213 (2008).

483. Meng, Y., P. J. Eng, J. S. Tse, D. M. Shaw, M. Y. Hu, J. Shu, S. A. Gramsch, C. Kao, R. J. Hemley, and H. K. Mao, Inelastic x-ray scattering of dense solid oxygen: evidence for intermolecular bonding, Proc. Nat. Acad. Sci., 33, 11640-11644 (2008).

482. Meng, Y. F., C. S. Yan, J. Lai, S. Krasnicki, H. Shu, Q. Liang, H. K. Mao, and R. J. Hemley, Enhanced optical properties of chemical vapor deposited single crystal diamond by low-pressure/high-temperature annealing, Proc. Nat. Acad. Sci., 10517620-17625 (2008).

481. Somayazulu, M., J. Shu, C. S. Zha, A. F. Goncharov, O. Tschauner, H. K. Mao, and R. J. Hemley, In-situ high-pressure x-ray diffraction study of H2O ice VII, J. Chem. Phys., 128, 064510 (2008).

480. Struzhkin, V. V., A. F. Goncharov, R. Caracas, H. K. Mao, and R. J. Hemley, Synchrotron infrared spectroscopy of the pressure induced insulator-metal transitions in glassy As2S3 and As2Se3, Phys. Rev. B, 77, 165133 (2008).

479. Yoshimura, Y., H. K. Mao, and R. J. Hemley, In-situ Raman study of the pressure-induced bulk melting of hexagonal ice, J. Phys.: Conf. Series, 121, 042004 (2008).

478. Zha, C. S., K. Mibe, W. A. Bassett, O. Tschauner, H. K. Mao, and R. J. Hemley, The P-V-T equation of state of platinum to 80 GPa and 1900 K using new internal resistive heating diamond-anvil cell techniques, J. Appl. Phys., 103, 054908 (2008).

2007

477. Beck, P., A. F. Goncharov, V. V. Struzhkin, B. Militzer, H. K. Mao, and R. J. Hemley, Measurement of thermal diffusivity at high pressure using a transient heating technique, Appl. Phys. Lett., 91, 181914 (2007).

476. Dattlebaum, D. M., L. L. Stevens, E. B. Orler, M. Ahart, and R. J. Hemley, Brillouin-scattering determination of the acoustic properties of polymers at high pressure, in Shock Compression of Condensed Matter - 2007 (ed. M. L. Elert), 39-42 (American Institute of Physics, Melville, NY, 2007).

475. Mao, W. L., A. J. Campbell, V. B. Prakapenka, R. J. Hemley, and H. K. Mao, Effect of iron on the properties of post-perovskite silicate, in Post-Perovskite: The Last Mantle Phase Transition (ed. K. Hirose), 37-46 (American Geophysical Union, Washington, DC, 2007).

474. Chen, X. J., B. Liang, Z. Wu, C. Ulrich, C. T. Lin, V. V. Struzhkin, R. J. Hemley, H. K. Mao, and H. Q. Lin, Oxygen isotope effect in Bi2Sr2Can-1CunO2n+4+d (n=1, 2, 3) Single Crystal, Phys. Rev. B, 76, 140502 (2007).

473. Gregoryanz, E., A. F. Goncharov, C. Sanloup, M. Somayazulu, H. K. Mao, and R. J. Hemley, High P-T behavior of nitrogen to 170 GPa, J. Chem. Phys., 126, 184505 (2007).

472. Santoro, M., E. Gregoryanz, H. K. Mao, and R. J. Hemley, Anomalous optical emission in hot dense oxygen, Solid State Comm., 144, 225-229 (2007).

471. Scott, H. P., Z. Liu, R. J. Hemley, and Q. Williams, High pressure infrared spectra of talc and lawsonite, Am. Mineral., 92, 1814-1820 (2007).

470. Struzhkin, V. V., B. Militzer, W. L. Mao, H. K. Mao, and R. J. Hemley, Hydrogen storage in molecular clathrates, Chem. Rev., 107, 4133-4151 (2007).

469. Yoshimura, Y., H. K. Mao, and R. J. Hemley, An in situ Raman spectroscopic study on the reversible transition between low-density and high-density amorphous ices at 135 K, J. Phys.: Cond. Matt., 19, 425214 (2007).

468. Yoshimura, Y., S. T. Stewart-Mukhopadhyay, H. K. Mao, and R. J. Hemley, In situ Raman spectroscopy of low temperature high pressure transformations of H2O, J. Chem. Phys., 126, 174505 (2007).

467. Stevens, L. L., E. B. Orler, D. M. Dattelbaum, M. Ahart, and R. J. Hemley, A Brillouin-scattering determination of the acoustic properties and their pressure dependence for three polymeric elastomers, J. Chem. Phys., 127, 140906 (2007).

466. Hemley, R. J., V. V. Struzhkin, and R. E. Cohen, Measuring high-pressure electronic and magnetic properties, in Treatise on Geophysics (ed. G. D. Price), 293-337 (Elsevier, Amsterdam, 2007).

465. Zha, C. S., R. J. Hemley, S. A. Gramsch, H. K. Mao, and W. A. Bassett, Optical study of H2O ice to 120 GPa: dielectric function, molecular polarizability, and equation of state, J. Chem. Phys., 126, 074506 (2007).

464. Somayazulu, M., S. A. Gramsch, H. K. Mao, and R. J. Hemley, High pressure-high temperature reactions in xenon-chlorine system, in Materials Research at High Pressure (eds. M. R. Manaa, Goncharov, A. F., Hemley, R. J. and Bini, R.), 987, 127-132 (Materials Research Society, Warrendale, Pennsylvania, 2007).

463. Shu, J., W. L. Mao, R. J. Hemley, and H. K. Mao, Pressure-induced distortive phase transition in chromite-spinel at 29 GPa, in Materials Research at High Pressure (eds. M. R. Manaa, Goncharov, A. F., Hemley, R. J. and Bini, R.), 987, 179-184 (Materials Research Society, Warrendale, Pennsylvania, 2007).

462. Okuchi, T., M. Takigawa, J. Shu, H. K. Mao, R. J. Hemley, and T. Yagi, Fast molecular transport in hydrogen hydrates by high-pressure diamond anvil cell NMR, Phys. Rev. B, 75, 144104 (2007).

461. Mao, H. K. and R. J. Hemley, The high-pressure dimension in earth and planetary science, Proc. Nat. Acad. Sci., 104, 9114-9115 (2007).

460. Kaminskii, A. A., R. J. Hemley, J. Lai, C. S. Yan, H. K. Mao, V. G. Ralchenko, H. J. Eichler, and H. Rhee, High-order stimulated Raman scattering in CVD single crystal diamond, Laser Phys. Lett., 4, 350-353 (2007).

459. Degtyareva, O., V. V. Struzhkin, and R. J. Hemley, High-pressure Raman spectroscopy of antimony: As-type, incommensurate host-guest, and bcc phases, Solid State Comm., 141, 164-167 (2007).

458. Degtyareva, O., M. Martinez Canales, A. Bergara, X. J. Chen, V. V. Struzhkin, H. K. Mao, and R. J. Hemley, Crystal structure of SiH4 at high pressure, Phys. Rev. B, 76, 064123 (2007).

457. Degtyareva, O., E. R. Hernandez, J. Serrano, M. Somayazulu, H. K. Mao, E. Gregoryanz, and R. J. Hemley, Vibrational dynamics and stability of the high-pressure chain and ring phases in S and Se, J. Chem. Phys., 126, 084503 (2007).

456. Ciezak, J. A., T. A. Jenkins, Z. Liu, and R. J. Hemley, High-pressure vibrational spectroscopy of energetic materials: Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), J. Phys. Chem., 111, 59-63 (2007).

455. Chen, X. J., V. V. Struzhkin, Z. G. Wu, H. Q. Lin, R. J. Hemley, and H. K. Mao, Unified picture of the oxygen isotope effect in cuprate superconductors, Proc. Nat. Acad. Sci., 104, 3732-3735 (2007).

454. Chellappa, R. S., D. Chandra, S. A. Gramsch, M. Somayazulu, and R. J. Hemley, Pressure-induced phase transformations in Li-based complex hydrides, in Materials Research at High Pressure (eds. M. R. Manaa, Goncharov, A. F., Hemley, R. J. and Bini, R.), 987, 133-138 (Materials Research Society, Warrendale, Pennsylvania, 2007).

453. Caracas, R. and R. J. Hemley, New structures of dense nitrogen: pathways to the polymeric phase, >Chem. Phys. Lett., 442, 65-70 (2007).

452. Ahart, M., A. Asthagiri, Z. G. Ye, P. Dera, H. K. Mao, R. E. Cohen, and R. J. Hemley, Brillouin scattering study of Pb(Mg1/3Nb2/3)O3, Phys. Rev. B, 75, 144410 (2007).