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我国科学家首次观测到三维量子霍尔效应
source link: https://tech.sina.com.cn/d/i/2019-05-16/doc-ihvhiqax9050238.shtml
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新华社合肥5月15日电（记者徐海涛）霍尔效应描述了当磁场加载到金属和半导体上时，电力与磁力之间的一种相互关系。近140年来，国际科学界相继发现了霍尔效应和量子霍尔效应。近期，中国科学技术大学乔振华课题组与南方科技大学张立源课题组等合作，首次
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