Cu-NMR studies of the heavy-fermion compound CeCu6 under high magnetic fields

Autor:	Hitoshi Sugawara, Keisuke Kuroda, Hideki Tou, Kyohei Morita, Hisashi Kotegawa
Rok vydání:	2013
Předmět:	Physics Condensed matter physics Field (physics) Chemical shift Density of states General Physics and Astronomy Resonance Field dependence Condensed Matter::Strongly Correlated Electrons Knight shift Atmospheric temperature range Magnetic field
Zdroj:	Journal of the Korean Physical Society. 62:1862-1865
ISSN:	1976-8524 0374-4884
DOI:	10.3938/jkps.62.1862
Popis:	We report a Cu NMR Knight shift K in a prototypical heavy-fermion system CeCu6 in the temperature range of 1.5 K–100 K at applied magnetic fields up to 15 T. With increasing magnetic field, the 63Cu NMR Knight shift for H‖[001] is suppressed drastically. The suppression of K with increasing field is consistent with the field dependence of the susceptibility. In order to explain this behavior, we adopted the Kondo resonance level model, where the thermodynamics at low temperatures are proportional to the density of states at the energy µH. The resonant model was found to correctly predict the suppression of the Knight shift with increasing magnetic field.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7d0f6830a658e33ef6fd1b94db10d2e9 https://doi.org/10.3938/jkps.62.1862 Zobrazit plný text záznamu Full text from SpringerLink