de Haas-van Alphen Effect and Fermi Surfaces of Magnetic Dense-Kondo Compound CeNi_2Al_5

概要

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Tl?e exper'iaaaents of de Ha;rs-vatt All)11(11211 (c1HvA) effect l121X'6 been carr'ried otut at teuaajceratttresdoxvtu to 40 uaal{ in a uauagraetic dezuse-Kotado cottajootrt?d CeNi3A[5 xvit1? ara irucouaaunetustrr?tte 11121:netic strtrcttrre. A cotaaplex jclaase diagr;ttua of the uttagzuetic tz'?tnsition field xrersus ternper;tttrr'eis coraapleted. R4aza3' ])]2ll1C11PS of' Blue dHxxA f'reqtrencies oloserved in tlae higlaer-field regiota,s, II,III atad IV. ltaxxe beetu trttderstood better ].oy tJae brataclaes predicted frona tlae tlxeor'etic?rl Feruxristtrf'arces of'utontaaaguaetic r'e['eretace-satrajole LaNizAI5 rather tlaatta the theoreticstJ Ol46S in CeNi3Al5xvitln 4.f electrotts treated srs itiruerstnt. B.1'2ll4Cl'18S ol,?serx'ed ira flue lowest field regiota I are raotcJe?'tr1y stuaal)zzed xvi{l? tire tlteoretical jcrediction ira LaXi3Al5 or CeNizAl5. Tl?e electron?s xxxitl?he;rvy' cyclotron l112lSS atr'e obserx'ed in flue region I'N.7; 12.4m0ira rj brancla, ll.2mg iru< brsttucJu atad9.6 m(j itu 0 braracl?. Soraae jcairs of' part;tlle[ lorattaches ztre olrserxxed dtze to the spitu-splittitag relattedto Clue raa;tgraetistn, and tlae exclaatage energ5x AE is olotaitaed; AH : 12.9 utaeV ira 73 br'stzacla ?tzad7,8taaeV ira 6 bratach. The relatiorxs lretxx'eeta tlte Ferutai sturfarces ;xttd the rna"relic strtrcttrre ar'ediscttssed.
社団法人日本物理学会の論文
1999-08-15