Lee, Seongsu, Choi, Taekjib, Ratcliff II, W., Erwin, R., Cheong, S-W., Kiryukhin, V.
We report polarized neutron scattering and piezoresponse force microscopy studies of millimeter-sized single crystals of multiferroic BiFeO$_3$. The crystals, grown below the Curie temperature,...
Neutron diffraction in a model itinerant metal near a quantum critical point (2008)
Sokolov, D. A., Aronson, M. C., Erwin, R., Lynn, J. W., Lumsden, M. D., Nagler, S. E.
Neutron diffraction measurements on single crystals of Cr1-xVx (x=0, 0.02, 0.037) show that the ordering moment and the Neel temperature are continuously suppressed as x approaches 0.037, a proposed...
Anomalous phonon behavior in the high temperature shape memory alloy: TiPd:Cr (2007)
Shapiro, S. M., Xu, G., Winn, B. L., Schlagel, D. L., Lograsso, T. A., Erwin, R.
Ti50 Pd50-xCrx is a high temperature shape memory alloy with a martensitic transformation temperature strongly dependent on the Cr composition. Prior to the transformation a premartensitic phase is...
Elastic neutron scattering in Quantum Critical Antiferromagnet Cr$_{0.963}$V$_{0.037}$ (2007)
Sokolov, D. A., Aronson, M. C., Strycker, G. L., Lumsden, M. D., Nagler, S. E., Erwin, R.
We have performed elastic neutron scattering studies of the quantum critical antiferromagnet Cr$_{0.963}$V$_{0.037}$. We have found that unlike pure Cr, which orders at two incommensurate...
Stripeless incommensurate magnetism in a doped strongly correlated oxide (2006)
Savici, A. T., Zaliznyak, I. A., Gu, G. D., Erwin, R.
We studied the nano-scale structure of the short-range incommensurate magnetic order in La1.5Sr0.5CoO4 by elastic neutron scattering. We find that magnetic diffuse scattering is isotropic in the a-b...
Neutron Scattering Study of Relaxor Ferroelectric (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 (2002)
La-Orauttapong, D., Toulouse, J., Chen, W., Erwin, R., Robertson, J. L.
Neutron elastic diffuse scattering experiments performed on Pb(Zn1/3Nb2/3)O3 (PZN) and on its solid solution with PbTiO3(PT), known as PZN-xPT, with x=4.5% and 9% around many reflections show that...
La-Orauttapong, D., Toulouse, J., Erwin, R., Robertson, J. L., Chen, W.
Diffuse neutron scattering is a valuable tool to obtain information about the size and orientation of the polar nanoregions that are a characteristic feature of relaxor ferroelectrics. In this paper,...
Enhancement of long-range magnetic order by magnetic field in superconducting La2CuO(4+y) (2001)
Khaykovich, B., Lee, Y. S., Erwin, R., Wakimoto, S., Thomas, K. J., ...
We report a detailed study, using neutron scattering, transport and magnetization measurements, of the interplay between superconducting (SC) and spin density wave (SDW) order in La2CuO(4+y). Both...
Spin-entropy driven melting of the charge order in La1.5Sr0.5CoO4 (2001)
Zaliznyak, I. A., Tranquada, J. M., Erwin, R., Moritomo, Y.
We studied the melting of the charge order in the half-doped tetragonal perovskite La1.5Sr0.5CoO4 by elastic neutron scattering. We found that diffuse peaks, corresponding to the breathing-type...
Independent freezing of charge and spin dynamics in La1.5Sr0.5CoO4 (2000)
Zaliznyak, I. A., Hill, J. P., Tranquada, J. M., Erwin, R., Moritomo, Y.
We present elastic and quasielastic neutron scattering measurements characterizing peculiar short-range charge-orbital and spin order in the layered perovskite material La1.5Sr0.5CoO4. We find that...
Direct Observation of a One Dimensional Static Spin Modulation in Insulating La1.95Sr0.05CuO4 (1999)
Wakimoto, S., Birgeneau, R. J., Kastner, M. A., Lee, Y. S., Erwin, R., Gehring, P. M., ...
We report the results of an extensive elastic neutron scattering study of the incommensurate (IC) static spin correlations in La1.95Sr0.05CuO4 which is an insulating spin glass at low temperatures....
Physiological Response of Birds to Approaching Aircraft. (1998)
Tomlinson, S., Buckingham, J., Erwin, R., Carpenter, B., Wilhoite, S.
The laboratory study exposed birds to video scenes of aircraft during the take off roll. Equipment to monitor the heart rate of the bird included a harness fitted with an Electrocardiogram (ECG)...
Zheludev, A., Maslov, S., Shirane, G., Tsukada, I., Masuda, T., Uchinokura, K., ...
New neutron diffraction and inelastic scattering experiments are used to investigate in detail the field dependence of the magnetic structure and low-energy spin wave spectrum of the...
Experimental evidence for Shekhtman-Entin-Wohlman-Aharony (SEA) interactions in Ba2CuGe2O7 (1998)
Zheludev, A., Maslov, S., Zaliznyak, I., Regnault, L. P., Masuda, T., Uchinokura, K., ...
New neutron diffraction and inelastic neutron scattering experiments on Ba2CuGe2O7 suggest that the previously suggested model for the magnetism of this material (an ideal sinusoidal spin spiral,...
Neutron powder diffraction study (T=4.2 - 300K) and polarization analysis of YBaCuFeO5+delta (1998)
Mombru, A W, Prassides, K, Christides, C, Erwin, R, Pissas, M, Mitros, C, ...
Yokoo, T., Raymond, S., Zheludev, A., Maslov, S., Ressouche, E., Zaliznyak, I., ...
Linear-chain nickelates with the composition (Nd_x Y_{1-x})_2 Ba Ni O_5 (x=1, x=0.75, x=0.5, and x=0.25) are studied in a series of neutron scattering experiments. Powder diffraction is used to...
MULTILAYERS AND LOW ANGLE NEUTRON SCATTERING (1989)
Vergnat, M., Dufour, C., Bruson, A., Houssaini, S., Marchal, G., Mangin, Ph., ...
Multilayers give rise to "Bragg" peaks in small angle X-ray and neutron scattering. The intensity of the peaks is a function of the contrast between the layers. In neutron scattering experiments,...
MULTILAYERS AND LOW ANGLE NEUTRON SCATTERING (1989)
Vergnat, M., Dufour, C., Bruson, A., Houssaini, S., Marchal, G., Mangin, Ph., ...
Multilayers give rise to "Bragg" peaks in small angle X-ray and neutron scattering. The intensity of the peaks is a function of the contrast between the layers. In neutron scattering experiments,...
MULTILAYERS AND LOW ANGLE NEUTRON SCATTERING (1989)
Vergnat, M., Dufour, C., Bruson, A., Houssaini, S., Marchal, G., Mangin, Ph., ...
Multilayers give rise to "Bragg" peaks in small angle X-ray and neutron scattering. The intensity of the peaks is a function of the contrast between the layers. In neutron scattering experiments,...
MAGNETIC STRUCTURE AND MAGNETOSTRICTION OF EPITAXIAL Er FILMS (1988)
Borchers, J., Nieuwenhuys, G., Salamon, M., Flynn, C., Du, R., Erwin, R., ...
The magnetism of epitaxial Er films up to 1 µm thick differs from bulk Er in that no ferromagnetic transition is observed. Above a critical field that depends on temperature and film thickness the...
NEUTRON SCATTERING STUDY OF THE MAGNETIC CORRELATIONS OF IRON RICH Fe-Zr GLASSES (1988)
Fernandez-Baca, J., Rhyne, J., Erwin, R., Fish, G.
Small angle neutron scattering (SANS) and polarized-beam spin rotation measurements show that amorphous Fe90Zr10 does not exhibit conventional long range ferromagnetic order below Tc. The SANS...
STRUCTURE OF Er | Y SUPERLATTICES (1988)
Erwin, R., Rhyne, J., Borchers, J., Salamon, M., Du, R., Flyn, C.
The magnetic structure of Er | Y superlattices has been determined by neutron diffraction and squid magnetometry on single crystal samples grown on sapphire substrates by molecular-beam-epitaxy...
MAGNETIC STRUCTURE AND MAGNETOSTRICTION OF EPITAXIAL Er FILMS (1988)
Borchers, J., Nieuwenhuys, G., Salamon, M., Flynn, C., Du, R., Erwin, R., ...
The magnetism of epitaxial Er films up to 1 µm thick differs from bulk Er in that no ferromagnetic transition is observed. Above a critical field that depends on temperature and film thickness the...
NEUTRON SCATTERING STUDY OF THE MAGNETIC CORRELATIONS OF IRON RICH Fe-Zr GLASSES (1988)
Fernandez-Baca, J., Rhyne, J., Erwin, R., Fish, G.
Small angle neutron scattering (SANS) and polarized-beam spin rotation measurements show that amorphous Fe90Zr10 does not exhibit conventional long range ferromagnetic order below Tc. The SANS...
STRUCTURE OF Er | Y SUPERLATTICES (1988)
Erwin, R., Rhyne, J., Borchers, J., Salamon, M., Du, R., Flyn, C.
The magnetic structure of Er | Y superlattices has been determined by neutron diffraction and squid magnetometry on single crystal samples grown on sapphire substrates by molecular-beam-epitaxy...
MAGNETIC STRUCTURE AND MAGNETOSTRICTION OF EPITAXIAL Er FILMS (1988)
Borchers, J., Nieuwenhuys, G., Salamon, M., Flynn, C., Du, R., Erwin, R., ...
The magnetism of epitaxial Er films up to 1 µm thick differs from bulk Er in that no ferromagnetic transition is observed. Above a critical field that depends on temperature and film thickness the...
NEUTRON SCATTERING STUDY OF THE MAGNETIC CORRELATIONS OF IRON RICH Fe-Zr GLASSES (1988)
Fernandez-Baca, J., Rhyne, J., Erwin, R., Fish, G.
Small angle neutron scattering (SANS) and polarized-beam spin rotation measurements show that amorphous Fe90Zr10 does not exhibit conventional long range ferromagnetic order below Tc. The SANS...
STRUCTURE OF Er | Y SUPERLATTICES (1988)
Erwin, R., Rhyne, J., Borchers, J., Salamon, M., Du, R., Flyn, C.
The magnetic structure of Er | Y superlattices has been determined by neutron diffraction and squid magnetometry on single crystal samples grown on sapphire substrates by molecular-beam-epitaxy...
Evans, G A, Howard, O M, Erwin, R, Farrar, W L
The haematopoietic protein, p95vav, has been shown to be a tyrosine kinase substrate and to have tyrosine kinase-modulated guanine-nucleotide-releasing-factor activity. This implies a function in the...
Evans, G A, Howard, O M, Erwin, R, Farrar, W L
The haematopoietic protein, p95vav, has been shown to be a tyrosine kinase substrate and to have tyrosine kinase-modulated guanine-nucleotide-releasing-factor activity. This implies a function in the...