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SUMMARY:Magnetic ground state  of YbCo$_2$Zn$_{20}$ probed by muon spin re
 laxation
DTSTART;VALUE=DATE-TIME:20220901T164000Z
DTEND;VALUE=DATE-TIME:20220901T170000Z
DTSTAMP;VALUE=DATE-TIME:20220826T122213Z
UID:indico-contribution-3762@indico.stfc.ac.uk
DESCRIPTION:Speakers: Wataru Higemoto (Japan Atomic Energy Agency/Tokyo In
 stitute of Technology)\nIn intermetallic Ce- and Yb-compounds\, the hybrid
 ization between the 4$f$ and itinerant conduction electrons induces the ma
 gnetic instability and charge configurations\, and  the ground state prope
 rties of heavy fermion located in the vicinity of a magnetic quantum criti
 cal point (QCP) is one of important issue for strongly correlated electron
  systems. The cubic compound YbCo$_2$Zn$_{20}$ has huge electronic specifi
 c heat coefficient $\\gamma$=7900mJ/molK$^2$ [2] and its ground state coul
 d be located in the vicinity of the QCP or a long-range ordered phase. Ind
 eed\, a magnetic long-range order was observed under pressure above 1-2 GP
 a[2].\nTo investigate magnetic ground state\, we have carried out muon spi
 n relaxation measurements and confirm non-magnetic ground state with fluct
 uating tiny magnetic moment. Detail of the magnetic state will be reported
  in the presentation.\n\n[1]M. S.Torikachvili\, S.Jia\, E. D.Mun\, S. T.Ha
 nnahs\, R. C.Black\, W. K.Neils\, D.Martien\, S. L.Bud’ko\, and P. C.Can
 field\, Proc. Natl. Acad. Sci. U.S.A. 104\, 9960 (2007). \n[2]Y.Saiga\, K.
 Matsubayashi\, T.Fujiwara\, M.Kosaka\, S.Katano\, M.Hedo\, T.Matsumoto\, a
 nd Y.Uwatoko\, J. Phys. Soc. Jpn. 77\, 053710 (2008).\n\nhttps://indico.st
 fc.ac.uk/event/53/contributions/3762/
LOCATION:Science and Technology Campus\, University of Parma
URL:https://indico.stfc.ac.uk/event/53/contributions/3762/
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