Precision X-ray Diffraction Studies in High Pulsed Magnetic Fields at the Advanced Photon Source

Magnetic fields obtained by discharging a large capacitor bank through Helmholtz coils can be produced in excess of 25 T for relatively short periods of time, ~ 1 msec and longer. When combined with modern facilities for diffraction at modern neutron and synchrotron x-ray sources, one can study the structure and phase diagrams of new materials under extremes of magnetic field. I will present two such studies, each focussing on a new magnetic material which exhibit exotic low temperature states. I will show time-resolved neutron Laue diffraction on the multiferroic magnet MnWO4 [1], and time-resolved synchrotron x-ray studies of large magneto-elastic effects in the geometrically-frustarted pyrochlore magnet Tb2Ti2O7 [2], both in magnetic fields up to ~ 30 T. Such studies of new materials in extreme sample environments can be very revealing as to the nature of their exotic low temperature states.

Download Full-text

X-ray diffraction and absorption study under strong pulsed magnetic fields

Acta Crystallographica Section A Foundations of Crystallography ◽

10.1107/s0108767305080359 ◽

2005 ◽

Vol 61 (a1) ◽

pp. c471-c471

Author(s):

T. Inami ◽

K. Ohwada ◽

Y. H. Matsuda ◽

H. Nojiri ◽

Y. Murakami ◽

...

Keyword(s):

Magnetic Fields ◽

Absorption Study ◽

Pulsed Magnetic Fields ◽

X Ray Diffraction ◽

X Ray

Download Full-text

Magnetoelastics of a Spin Liquid: X-Ray Diffraction Studies ofTb2Ti2O7in Pulsed Magnetic Fields

Physical Review Letters ◽

10.1103/physrevlett.105.077203 ◽

2010 ◽

Vol 105 (7) ◽

Cited By ~ 40

Author(s):

J. P. C. Ruff ◽

Z. Islam ◽

J. P. Clancy ◽

K. A. Ross ◽

H. Nojiri ◽

...

Keyword(s):

Magnetic Fields ◽

Spin Liquid ◽

Pulsed Magnetic Fields ◽

X Ray Diffraction ◽

X Ray

Download Full-text

Susceptibility Anisotropy in an Iron Arsenide Superconductor Revealed by X-Ray Diffraction in Pulsed Magnetic Fields

Physical Review Letters ◽

10.1103/physrevlett.109.027004 ◽

2012 ◽

Vol 109 (2) ◽

Cited By ~ 19

Author(s):

J. P. C. Ruff ◽

J.-H. Chu ◽

H.-H. Kuo ◽

R. K. Das ◽

H. Nojiri ◽

...

Keyword(s):

Magnetic Fields ◽

Pulsed Magnetic Fields ◽

X Ray Diffraction ◽

X Ray ◽

Iron Arsenide Superconductor

Download Full-text

Modeling of magneto-conductivity of bismuth selenide: a topological insulator

SN Applied Sciences ◽

10.1007/s42452-021-04397-8 ◽

2021 ◽

Vol 3 (4) ◽

Author(s):

Yogesh Kumar ◽

Rabia Sultana ◽

Prince Sharma ◽

V. P. S. Awana

Keyword(s):

Magnetic Field ◽

Magnetic Fields ◽

Single Crystal ◽

Single Crystals ◽

X Ray Diffraction ◽

Field Range ◽

X Ray ◽

Bulk Carriers ◽

Different Temperatures

AbstractWe report the magneto-conductivity analysis of Bi2Se3 single crystal at different temperatures in a magnetic field range of ± 14 T. The single crystals are grown by the self-flux method and characterized through X-ray diffraction, Scanning Electron Microscopy, and Raman Spectroscopy. The single crystals show magnetoresistance (MR%) of around 380% at a magnetic field of 14 T and a temperature of 5 K. The Hikami–Larkin–Nagaoka (HLN) equation has been used to fit the magneto-conductivity (MC) data. However, the HLN fitted curve deviates at higher magnetic fields above 1 T, suggesting that the role of surface-driven conductivity suppresses with an increasing magnetic field. This article proposes a speculative model comprising of surface-driven HLN and added quantum diffusive and bulk carriers-driven classical terms. The model successfully explains the MC of the Bi2Se3 single crystal at various temperatures (5–200 K) and applied magnetic fields (up to 14 T).

Download Full-text

Single shot x-ray diffractometry in SACLA with pulsed magnetic fields up to 16 T

Physical Review Research ◽

10.1103/physrevresearch.2.043175 ◽

2020 ◽

Vol 2 (4) ◽

Author(s):

Akihiko Ikeda ◽

Yasuhiro H. Matsuda ◽

Xuguang Zhou ◽

Takeshi Yajima ◽

Yuya Kubota ◽

...

Keyword(s):

Magnetic Fields ◽

Single Shot ◽

Pulsed Magnetic Fields ◽

X Ray

Download Full-text

Effect of Magnetic Field on Solidification Behavior of a MnCu Damping Alloy

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.279.35 ◽

2018 ◽

Vol 279 ◽

pp. 35-43 ◽

Cited By ~ 1

Author(s):

Ze Chao Jiang ◽

Fan Yang ◽

Jian Lan ◽

Qing Chao Tian ◽

Wei Dong Xuan ◽

...

Keyword(s):

Magnetic Field ◽

Magnetic Fields ◽

Deflection Angle ◽

Primary Dendrite ◽

Metallographic Analysis ◽

Coupling Mechanism ◽

Solidification Behavior ◽

X Ray Diffraction ◽

X Ray ◽

Variation Tendency

Preparation of Mn-Cu based damping alloy ingots coupled with strong magnetic fields shows many interesting phenomena on the solidification microstructure and the crystal lattice. In this study, modified M2052 ingots were prepared under different magnetic fields to investigate the bulk solidification behavior by using optical microscopy, scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction. Metallographic analysis reveals that the deflection angle of the primary dendrite arm increases with the increase of magnetic field strength. The distribution of chemical composition characterized by X-ray Fluorescence discloses that Mn is enriched while Cu is depleted along the circumferential surface side, and the variation tendency changes from almost a level to a sloping line under applied magnetic field. High magnetic field have altered the orientation of the γ-Mn dendrites from (200) to (111), and the coupling mechanism of alloy solidification with strong magnetic field is discussed based on the experimental results.

Download Full-text