Determination of Atomic Short-Range Order Structure and Magnetic Properties of Spin-Glass Systems: Gold-Iron and Nickel-Manganese
Determination of Atomic Short-Range Order Structure and Magnetic Properties of Spin-Glass Systems: Gold-Iron and Nickel-Manganese
批准号:
8721796
负责人:
Haydn Chen
金额:
$24.42万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1988
资助国家:
美国
项目状态:
已结题
起止时间:
1988-05-01 至 1991-10-31
中文摘要
这项研究探索了自旋玻璃的原子结构。系统地应用时效和形变处理来改变所选合金系统中的局部原子排列,如金-铁、铜-锰和镍-锰。测量了磁性,并与原子结构进行了关联,这是由X射线散射和透射电子显微镜得出的。对所选择的合金系统进行了比较,以阐明其磁性行为。
英文摘要
This research explores the atomic structure of spin glasses. Aging and deformation treatments are systematically applied to vary the local atomic arrangements in the selected alloy systems, gold-iron, copper-manganese, and nickel-manganese. Magnetic properties are measured and correlated with atomic structure, which is derived from x-ray scattering and transmission electron microscopy. Comparisons are made between the selected alloy systems to clarify the magnetic behavior.
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Acquisition of an X-Ray CCD Detector System for Materials Research at Advanced Photon Source
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批准号:9802643
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项目类别:Standard Grant
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资助金额:$20.0万
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财政年份:1998
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负责人:Haydn Chen
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依托单位:
Determination of Atomic Short-Range Order Structure in the Spin-Glass System Gold-Iron System (Materials Research)
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批准号:8419801
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项目类别:Continuing Grant
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资助金额:$23.78万
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财政年份:1985
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负责人:Haydn Chen
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依托单位:
Acquisition of X-Ray Research Equipment
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批准号:8007430
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项目类别:Standard Grant
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资助金额:$2.15万
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财政年份:1980
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负责人:Haydn Chen
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依托单位:
Research Initiation-The Extended X-Ray Absorption Fine Structure (Exafs) Study of Point Defect Arrangements in Wustite and Magnesio-Wustite
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批准号:7908203
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项目类别:Standard Grant
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资助金额:$4.14万
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财政年份:1979
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负责人:Haydn Chen
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依托单位:
海外基金