X-ray and neutron scattering

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Synthesis, characterization and properties of alkali and earth-alkalisulfonates

Acta Crystallographica Section A: Foundations and advances International Union of Crystallography (IUCr) 62:a1 (2006) s211-s211

Authors:

H Pöllmann, S Stöber, Ch Wagner, K Merzweiler
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Erratum: Resonant soft x-ray scattering investigation of orbital and magnetic ordering in La0.5 Sr1.5 MnO4 (Physical Review B - Condensed Matter and Materials Phsics (2006) 71, (245102))

Physical Review B - Condensed Matter and Materials Physics 74:4 (2006)

Authors:

SB Wilkins, N Stojić, TAW Beale, N Binggeli, CWM Castleton, P Bencok, D Prabhakaran, AT Boothroyd, PD Hatton, M Altarelli
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Synthesis and Evaluation of a Low Pressure Drop Structured Catalyst for Use in the Reactive Distillation Process

Industrial & Engineering Chemistry Research American Chemical Society (ACS) 45:15 (2006) 5268-5273

Authors:

Stuart M Holmes, Andrew Boothroyd, Colin S Cundy, Arthur A Garforth, Christina Keilert, Gwyn A Mali, David MT Newsham, Graeme Torkington
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Resonant soft x-ray scattering investigation of orbital and magnetic ordering in La0.5Sr1.5MnO4 (vol 71, art no 245102, 2005)

PHYS REV B 74:4 (2006) 049902

Authors:

SB Wilkins, N Stojic, TAW Beale, N Binggeli, CWM Castleton, P Bencok, D Prabhakaran, AT Boothroyd, PD Hatton, M Altarelli
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Effect of uniaxial pressure on charge transport in the layered manganite La1.25 Sr1.75 Mn2 O7

Physical Review B - Condensed Matter and Materials Physics 73:21 (2006)

Authors:

S Arumugam, K Mydeen, N Manivannan, MK Vanji, D Prabhakaran, AT Boothroyd, RK Sharma, P Mandal

Abstract:

The effect of uniaxial pressure on resistivity along the ab plane (ρab) and c axis (ρc) in single crystals of bilayer manganite La1.25 Sr1.75 Mn2 O7 has been investigated. A prominent finding is the asymmetric role of pressure on charge transport phenomenon. With increasing pressure along the c axis, ρab decreases and the metal-insulator (MI) transition temperature shifts towards higher temperature at the rate of 46 K GPa. In contrary to this, ρc increases and the MI transition temperature decreases with increasing pressure along the ab plane. The resistivity ratio ρc ρab is quite large, increases with pressure, and shows a peak at around the MI transition. We believe that the unusual behavior of transport properties is related to the Mn-O-Mn linkage between MnO2 layers and the spin reorientation from the c axis to the basal plane and vice versa with pressure. © 2006 The American Physical Society.
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