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Publications 1998

Colossal magnetoresistance in Gd1/2Sr1/2MnO3, B. Garcia-Landa, J. M. De Teresa, M. R. Ibarra, C. Ritter, R. Drost and M. R. Lees, J. of Appl. Phys. 83, 7664 (1998).
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Neutron powder diffraction study of the magnetic and structural properties of Pr0.6(CaxSr1-x)0.4MnO3 (0 < x < 1), M. R. Lees, J. Barratt, G. Balakrishnan, D. McK Paul, C. Ritter, Physical Review B 58, 8694 (1998).
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Magnetic properties of (Pr(Ca-Sr))MnO3 studied by NMR, G. J. Tomka, P. C. Riedi, Cz. Kapusta, G. Balakrishnan, D. McK. Paul, M. R. Lees, and J. Barratt, 7th Joint MMM-Intermag Conference, San Francisco-USA 1997. J of Appl. Phys. 83, 7151 (1998).
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Magnetic and structural properties of La1-xSrxMnO3 D. McK Paul, K. V. Kamenev, G. Balakrishnan, A. J. Campbell, M. R. Lees, and G. J. McIntyre, Understanding and utilizing colossal magnetoresistance materials, London 1997. Phil. Trans. Royal Soc. London A 356, 1543 (1998).
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Primary role of the structural phase transition in the strongly coupled structure and magnetism of La0.835Sr0.165MnO3 single crystal, K. V. Kamenev, G. J. McIntyre, D. McK. Paul, M. R. Lees, and G. Balakrishnan, Physical Review B 57, R6775 (1998).
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Nonlocal effects and vortex lattice transitions in YNi2B2C, D. McK. Paul, C. V. Tomy, C. M. Aegerter, R. Cubitt, S. H. Lloyd, E. M. Forgan, S. L. Lee, and M. Yethiraj, Physical Review Letters 80, 1517 (1998).
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Re-entrant peak effect in an anisotropic superconductor 2H-NbSe2: Role of disorder, S. S. Banerjee, N.G. Patil, , S. Ramakrishnan, A.K. Grover , S. Bhattacharya, K. Mishra, G. Ravikumar, T. V. Chandrasekhar Rao , V. C. Sahni , M. J. Higgins, C. V. Tomy, G. Balakrishnan, and D. McK. Paul, Europhys. Lett. 44, 91 (1998).
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Observation of a square flux-line lattice in the unconventional superconductor Sr2RuO4, T. M. Riseman, P. G. Kealey, E. M. Forgan, A. P. Mackenzie, L. M. Galvin, A. W. Tyler, S. L. Lee, C. Ager, D. McK. Paul, C.M. Aegerter, R. Cubitt, Z. Q. Mao, T. Akima, and Y. Maeno, Nature 396, 242 (1998).
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Muon spin rotation evidence for loss of order in the flux line lattice in the peak effect region in 2H-NbSe2, T. V. Chandrasekhar Rao, V. C. Sahni, P. K. Mishra, G. Ravikumar, C. V. Tomy, G. Balakrishnan , D. M cK. Paul , C. A. Scott , S. S. Banerjee, N. G. Patil , Subir Saha , S. Ramakrishnan, A. K. Grover, and S. Bhattacharya, Physica C 299, 267 (1998).
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Square flux lines in YNi2B2C, M. Yethiraj, D. Mc K. Paul, C. V. Tomy, and J. R. Thompson, Physical Review B58, 14767 (1998).
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Effect of annealing upon the high TC superconductor, S.T. Johnson, P. D. Hatton , A. J. S. Chowdhury, J. S. Gardner , G. Balakrishnan, D. McK. Paul, and J. Hodby, Bi2Sr2CaCu 2O8+d, Physica C 299, 240 (1998).
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Generic phase diagram for vortex matter via a study of peak effect phenomenon in crystals of 2H-NbSe2, S. S. Banerjee , S. Saha , N. G. Patil , S. Ramakrishnan , A. K. Grover, S. Bhattacharya , G. Ravikumar, P. K. Mishra , T. V. C. Rao , V. C. Sahni, C. V. Tomy, G. Balakrishnan, D. McK. Paul, and M. J. Higgins, Physica C 308, 25 (1998).
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Observation of vortex lattice melting in twinned YBa2Cu3O7-x using neutron small-angle scattering, S. T. Johnson, W. J. Nuttall, S. H. Lloyd, M. T. Wylie, M. P. Nutley, E. M. Forgan, R. Cubitt, S. L. Lee, D. McK. Paul, M. Yethiraj, and H. A. Mook, Physical Review B 57, 14511 (1998).
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Electron spin resonance in the doped spin Peierls compound Cu1-xNix GeO3, V. Glazkov, A. I. Smirnov, O. A. Petrenko, D. McK. Paul , A. G. Vetkin, and R. M. Erimina, J. Phys.: Condens. Matter 10, 7879 (1998).
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Single crystal growth of rare earth titanate pyrochlores, G. Balakrishnan, O. A. Petrenko, M. R. Lees, and D. McK. Paul, J. Phys.: Condens. Matter 10, L723 (1998).
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Neutron-diffraction study of CeCuGa3, J. M. Martin, M. R. Lees, and D. McK. Paul, P. Dai, C. Ritter, and Y.J. Bi, Physical Review B 57, 7419 (1998).

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Investigation of the low-temperature spin-liquid behavior of the frustrated magnet Gadolinium Gallium Garnet, O.A. Petrenko, C. Ritter, M. Yethiraj, and D. McK Paul, Physical Review Letters 80, 4570 (1998).
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Competing exchange interactactions in Li2CuO2, M. Boehm, S. M. Coad, B. Roessli, A. Zheludev, M. Zolliker, P. Boni, D. Mc K. Paul, H. Eisaki, N. Motoyama, and S. Uchida, Europhys. Letters 43, 77 (1998).
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Single crystal growth by the floating zone method of a geometrically frustrated pyrochlore antiferromagnet Tb2Ti2O7 , J. S. Gardner, B. D. Gaulin, and D. McK. Paul, J. Crys.Growth. 191, 740 (1998).
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