SPring-8, the large synchrotron radiation facility

Inquiry number

SOL-0000000885

Beamline

BL02B1 (Single Crystal Structure Analysis)

Scientific keywords

A. Sample category	inorganic material
B. Sample category (detail)	magnetic material, insulator, ceramics, solid-state crystal, crystal
C. Technique	X-ray diffraction, X-ray elastic scattering
D. Technique (detail)	single crystal, diffuse scattering, wide angle scattering
E. Particular condition	polarization (linear), room temperature
F. Photon energy	X-ray (4-40 keV)
G. Target information	dislocation, strain, structural change, phase transition

Industrial keywords

level 1---Application area	electric component, storage device, cell (battery), Chemical product, industrial material
level 2---Target	condenser, HD,MO, rechargeable battery, and solar cell
level 3---Target (detail)	capacitance insulator, magnetic layer, magnetic head
level 4---Obtainable information	crystal structure, valence
level 5---Technique	diffraction, X-ray diffraction

Classification

A80.14 magnetic materials, A80.30 inorganic material, M10.10 single crystal diffraction

Body text

X-ray diffuse scattering is an efficient technique to study a degree of disorder in charge density. Using this technique, one can measure the misarrangement of atoms in a crystal. This nondestructive technique can be implemented under a large variety of sample environment such as temperature, pressure and external field. The figure shows the contour plot of diffuse scattering intensities around (10,4,0) in Pr_0.6Ca_0.4MnO₃. These data reveal details about precursors of charge and orbital ordering between Mn ions: first valence disproportionation occurs among Mn ions, and then correlation between them develops toward the critical temperature.

[ S. Shimomura, T. Tonegawa, K. Tajima, N. Wakabayashi, N. Ikeda, T. Shobu, Y. Noda, Y. Tomioka and Y. Tokura, Physical Review B 62, 3875-3878 (2000), Fig. 5,
©2000 American Physical Society ]

Source of the figure

Original paper/Journal article

Journal title

Phys. Rev. B 62, 3875 (2000)

Figure No.

5

Technique

A single crystal diffraction experiment is a powerful technique to study the structure of materials in an atomic scale.  The technique is applicable to any crystalline material and provides knowledge about atomic scale structural information.

Source of the figure

No figure

Required time for experimental setup

4 hour(s)

Instruments

Instrument	Purpose	Performance
4-circle diffractometer	diffraction intensity measurement

References

Document name
S. Shimomura et. al., Phys. Rev. B 62, 3875 (2000).

Related experimental techniques

neutron diffraction, electron diffraction

Questionnaire

This solution is an application of a main instrument of the beamline.

Ease of measurement

Middle

Ease of analysis

With a great skill

How many shifts were needed for taking whole data in the figure?

Less than one shift