TY - JOUR
T1 - Metamagnetic transitions and electronic structures of CeRu2 ( Si1 - x Gex )2
AU - Sugi, M.
AU - Fujiwara, T.
AU - Isshiki, T.
AU - Kimura, N.
AU - Komatsubara, T.
AU - Aoki, H.
N1 - Funding Information:
This work was supported by Grand-in-Aid for Scientific Research from JSPS and partially by Mext Japan through 21st Century COE Program “Exploring New Science by Bridging Particle-Matter Hierarchy”. We thank Mr. M. Suzuki and Mr. M. Kikuchi for their technical support.
PY - 2006/5/1
Y1 - 2006/5/1
N2 - We have studied the magnetic properties and the dHvA effect of CeRu2 ( Si1 - x Gex )2. It is found that the pseudometamagnetic transitions (PMMT) of lower Ge concentration samples are likely to join to the first-order metamagnetic transitions of higher Ge concentration samples, indicating that the PMMT of CeRu2Si2 is a phenomenon closely related with the end point of the first-order metamagnetic transition. The dHvA frequencies change continuously with increasing Ge concentration or increasing unit cell volume across the quantum critical point. It is likely that the electronic states above the pseudometamagnetic and first-order metamagnetic transitions are connected without a phase transition.
AB - We have studied the magnetic properties and the dHvA effect of CeRu2 ( Si1 - x Gex )2. It is found that the pseudometamagnetic transitions (PMMT) of lower Ge concentration samples are likely to join to the first-order metamagnetic transitions of higher Ge concentration samples, indicating that the PMMT of CeRu2Si2 is a phenomenon closely related with the end point of the first-order metamagnetic transition. The dHvA frequencies change continuously with increasing Ge concentration or increasing unit cell volume across the quantum critical point. It is likely that the electronic states above the pseudometamagnetic and first-order metamagnetic transitions are connected without a phase transition.
KW - CeRuSi
KW - DHvA
KW - Metamagnetic transition
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U2 - 10.1016/j.physb.2006.01.297
DO - 10.1016/j.physb.2006.01.297
M3 - Article
AN - SCOPUS:33747680371
SN - 0921-4526
VL - 378-380
SP - 810
EP - 811
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - SPEC. ISS.
ER -