期刊
PHYSICAL REVIEW B
卷 85, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.85.081107
关键词
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资金
- DOE [DE-FG02-08ER46492]
- NSF [DMR-1105339, DMR-0906655]
- I2CAM via NSF [DMR-0844115]
- Direct For Mathematical & Physical Scien [844115] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0906655] Funding Source: National Science Foundation
- Division Of Materials Research [844115] Funding Source: National Science Foundation
We study the T = 0 Kondo physics of a spin-1/2 impurity in a noncentrosymmetric metal with spin-orbit interaction. Within a simple variational approach we compute ground-state properties of the system for an arbitrary form of spin-orbit coupling consistent with the crystal symmetry. This coupling produces an unscreened impurity magnetic moment and can lead to a significant change of the Kondo energy. We discuss implications of this finding both for dilute impurities and for heavy-fermion materials without inversion symmetry.
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