TY - JOUR
T1 - Total scattering of disordered crystalline functional materials
AU - Shamoto, Shin Ichi
AU - Kodama, Katsuaki
AU - Iikubo, Satoshi
AU - Taguchi, Tomitsugu
N1 - Funding Information:
We would like to acknowledge T. Egami, S. Sinha, Th. Proffen, J.W. Richardson Jr., E. Maxy, J.-H. Chung, N. Yamada, K. Kawahara, T. Matsunaga, Y. Hasegawa, T. Kajitani, and Y. Ono for their discussion and help. This work was supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan. This work has benefited from the use of NPDF at the Lujan Center at Los Alamos Neutron Science Center and GPPD at the Intense Pulse Neutron Source at the Argonne National Laboratory. Los Alamos National Laboratory and Argonne National Laboratory are funded by DOE under Contract W-7405-ENG-36 and W-31-109-ENG-38, respectively. Upgrade of NPDF was funded by NSF through Grant DMR 00-76488.
PY - 2009/2/21
Y1 - 2009/2/21
N2 - There are disorders in some modern functional materials. As an example, the crystalline phase of an optical recording material has low thermal conductivity but high electrical conductivity, simultaneously. This contradiction is a challenge to material scientists in designing good functional materials, which should have at least two types of crystallographic sites. One site limits thermal conductivity while the other site carries electrons or holes with high mobility. This problem exists with not only optical recording materials but also thermoelectric materials. The periodic boundary condition gets lost in the disordered parts. This therefore, makes atomic pair distribution function (PDF) analysis with a wide range of real space suitable for investigating the form and size of crystalline parts as well as disordered parts in the material. Pulsed neutron powder diffraction is one of the best tools for use in this new type of emerging research, together with synchrotron X-ray powder diffraction and electron diffraction.
AB - There are disorders in some modern functional materials. As an example, the crystalline phase of an optical recording material has low thermal conductivity but high electrical conductivity, simultaneously. This contradiction is a challenge to material scientists in designing good functional materials, which should have at least two types of crystallographic sites. One site limits thermal conductivity while the other site carries electrons or holes with high mobility. This problem exists with not only optical recording materials but also thermoelectric materials. The periodic boundary condition gets lost in the disordered parts. This therefore, makes atomic pair distribution function (PDF) analysis with a wide range of real space suitable for investigating the form and size of crystalline parts as well as disordered parts in the material. Pulsed neutron powder diffraction is one of the best tools for use in this new type of emerging research, together with synchrotron X-ray powder diffraction and electron diffraction.
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U2 - 10.1016/j.nima.2008.11.035
DO - 10.1016/j.nima.2008.11.035
M3 - Article
AN - SCOPUS:59649088034
SN - 0168-9002
VL - 600
SP - 229
EP - 231
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1
ER -