TY - JOUR
T1 - Crystalline field effects in intermetallic compounds
AU - Davidov, D.
AU - Bucher, E.
AU - Rupp, L. W.
AU - Longinotti, L. D.
AU - Rettori, C.
PY - 1974
Y1 - 1974
N2 - Electron-spin resonance of the rare-earth ions Ce+3, Dy+3, Er+3, and Yb+3 has been observed in various cubic intermetallic compounds. Our experimental results indicate the ground states to be (a) Γ7 for Yb+3 in LaPd3 (Cu3Au structure), (b) Γ8(1) for Er+3 in LaSb, LuSb, LaBi, and LuBi (NaCl structure), (c) Γ7 for Ce+3 in LaSb, (d) Γ6 for Dy+3 in LaSb, (e) Γ6 for Yb+3 in LaSb, and (f) Γ6 for Er in LaB6 (CaB6 structure). These data represent the first observations of anisotropic resonance and hyperfine structure in intermetallic compounds as well as the first observation of EPR of Ce+3 in any metal. The observations are consistent with crystalline field parameters deduced from measurements of concentrated spin systems with the same structure, by means of other experimental techniques. Analysis of the crystalline field parameters in terms of the point-charge model, the virtual-bound-state model, and possible f-like contributions is given.
AB - Electron-spin resonance of the rare-earth ions Ce+3, Dy+3, Er+3, and Yb+3 has been observed in various cubic intermetallic compounds. Our experimental results indicate the ground states to be (a) Γ7 for Yb+3 in LaPd3 (Cu3Au structure), (b) Γ8(1) for Er+3 in LaSb, LuSb, LaBi, and LuBi (NaCl structure), (c) Γ7 for Ce+3 in LaSb, (d) Γ6 for Dy+3 in LaSb, (e) Γ6 for Yb+3 in LaSb, and (f) Γ6 for Er in LaB6 (CaB6 structure). These data represent the first observations of anisotropic resonance and hyperfine structure in intermetallic compounds as well as the first observation of EPR of Ce+3 in any metal. The observations are consistent with crystalline field parameters deduced from measurements of concentrated spin systems with the same structure, by means of other experimental techniques. Analysis of the crystalline field parameters in terms of the point-charge model, the virtual-bound-state model, and possible f-like contributions is given.
UR - http://www.scopus.com/inward/record.url?scp=33744693986&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.9.2879
DO - 10.1103/PhysRevB.9.2879
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AN - SCOPUS:33744693986
SN - 0163-1829
VL - 9
SP - 2879
EP - 2886
JO - Physical Review B
JF - Physical Review B
IS - 7
ER -