Origin of PSD Behavior II: Hysteresis Measurements and Domain Observations of Small Single Particles
Origin of PSD Behavior II: Hysteresis Measurements and Domain Observations of Small Single Particles
批准号:
9204762
负责人:
Susan Halgedahl
金额:
$19.71万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1992
资助国家:
美国
项目状态:
已结题
起止时间:
1992-09-15 至 1997-02-28
中文摘要
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英文摘要
Rock magnetic studies have entered a new phase of high- sensitivity analysis, in which it is possible to unravel the physics of magnetism at the level of single magnetic grains. The PI will do a suite of experiments to study magnetic domain behavior and hysteresis loops of single particles, using the magneto- optical Kerr effect and an alternating force magnetometer. The two primary goals of this work are: 1: To determine whether the behavior of a large assemblage of particles is well-represented by he behavior of an average grain making up the assemblage. 2. To extract microphysical data that are critical to understanding the hysteresis behavior of single particles.
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Micromagnetic Experiments on Small Single Particles: Defects, Nucleation, and Wall-Pinning
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批准号:0125993
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项目类别:Standard Grant
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资助金额:$19.57万
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财政年份:2002
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负责人:Susan Halgedahl
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依托单位:
Local Energy Minimum Domain States in Magnetite, Titanomagnetite, and Hematite
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批准号:9725844
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项目类别:Standard Grant
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资助金额:$18.8万
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财政年份:1998
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负责人:Susan Halgedahl
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依托单位:
Experiments to Investigate the Demagnetization Response of Small Single Particles
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批准号:9418405
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项目类别:Continuing Grant
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资助金额:$19.89万
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财政年份:1996
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负责人:Susan Halgedahl
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依托单位:
Equipment for Rockmagnetic and Paleomagnetic Research: Squid Magnetometer and Shielded Room
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批准号:9204551
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项目类别:Standard Grant
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资助金额:$9.63万
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财政年份:1992
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负责人:Susan Halgedahl
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依托单位:
Viscosity Mechanisms in Magnetite, II: Physical Origin of Anomalously High Unblocking Temperatures
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批准号:9296033
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项目类别:Continuing Grant
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资助金额:$7.55万
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财政年份:1991
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负责人:Susan Halgedahl
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依托单位:
Experimental Studies of Transdomain Remanence
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批准号:9121015
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项目类别:Standard Grant
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资助金额:$14.45万
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财政年份:1991
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负责人:Susan Halgedahl
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依托单位:
Collaborative Research: Origin of PSD Behavior: Magnetic Measurements and Domain Observations of Single Particles
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批准号:9296034
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项目类别:Continuing Grant
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资助金额:$4.15万
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财政年份:1991
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负责人:Susan Halgedahl
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依托单位:
Viscosity Mechanisms in Magnetite, II: Physical Origin of Anomalously High Unblocking Temperatures
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批准号:8917450
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项目类别:Continuing Grant
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资助金额:$5.8万
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财政年份:1990
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负责人:Susan Halgedahl
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依托单位:
Collaborative Research: Origin of PSD Behavior: Magnetic Measurements and Domain Observations of Single Particles
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批准号:8817088
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1989
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负责人:Susan Halgedahl
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依托单位:
Magnetic Domain Studies of Fine Particle Behavior, II: PSD Particles at High Resolution
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批准号:8708544
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1987
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负责人:Susan Halgedahl
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依托单位:
Collaborative Research: The Effects of Residual Stress on the Domain Structure in Natural and Synthetic Titanomagnetites
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批准号:8610489
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1986
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负责人:Susan Halgedahl
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依托单位:
Viscosity Mechanisms in Magnetite
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批准号:8519331
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:1986
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负责人:Susan Halgedahl
-
依托单位:
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