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arXiv 1102.4896cond-mat.str-elcond-mat.quant-gascond-mat.supr-conhep-th
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重费米子与量子相变

Heavy Fermions and Quantum Phase Transitions

Qimiao Si, Frank Steglich

摘要:

量子相变出现在多体系统中,由于竞争的相互作用,促进竞争的基态。近年来,在反铁磁重费米子化合物中发现了连续的量子相变或量子临界点。对各种效应之间相互作用的研究揭示了新的量子临界点,并揭示了大量新的量子相。与此同时,量子临界性为重费米子金属的电子、磁性和超导性质提供了新的见解。我们回顾了这些发展,讨论了开放的问题,并概述了未来的研究方向。

英文摘要:

Quantum phase transitions arise in many-body systems due to competing interactions that promote rivaling ground states. Recent years have seen the identification of continuous quantum phase transitions, or quantum critical points, in a host of antiferromagnetic heavy-fermion compounds. Studies of the interplay between the various effects have revealed new classes of quantum critical points, and are uncovering a plethora of new quantum phases. At the same time, quantum criticality has provided fresh insights into the electronic, magnetic, and superconducting properties of the heavy-fermion metals. We review these developments, discuss the open issues, and outline some directions for future research.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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