Erbium (Z=68)
152Er 153Er 154Er 155Er 156Er 157Er 158Er 159Er 160Er 161Er 162Er 163Er 164Er 165Er 166Er 167Er 168Er 169Er 170Er 171Er
Recommended† magnetic dipole moments
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Method Recommended Tables
170Er 79 1.89 ns 2+ 0.633(13) ME INDC(NDS)-0816
260 (135 ps) 4+ +1.09(15) IMPAC INDC(NDS)-0816


Recommended† electric quadrupole moments
Isotope Energy [keV] t1/2 Spin/Parity Q [b] Method Recommended Tables
170Er 79 1.89 ns 2+ -1.9(2) CER INDC(NDS)-0833
260 - 4+ -2.2(10) CER INDC(NDS)-0833
934 1.81 ps 2+ 2.0(3) CER INDC(NDS)-0833


Compiled‡ magnetic dipole and electric quadrupole moments from published articles
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Q [b] Ref. Std Method NSR keyword doi
170Er 79. 1.90 ns 2+ 0.633(13) [166Er 81] ME 1969WI04 10.1103/PhysRev.177.1786
-1.9(2) CER 1973LU02
2013STZZ		 10.1103/PhysRevC.8.391
260. ~135 ps 4+ +1.09(15) [166Er 265.] IMPAC 1968DE28
-2.2(10) CER 1970MCZQ
2013STZZ
934. 1.7 ps 2+ 2.0(3) CER 1983HU01
2013STZZ		 10.1103/PhysRevC.27.550

† Recommended magnetic moments are for the bare nucleus with published results corrected consistently for diamagnetism (including error estimate).
  Where appropriate published results are also adjusted to the most recent adopted half-life for the state.
  Recommended quadrupole moments are adjusted using the best electric field gradient calculation for the system concerned.
  For details see the Reports referenced.

‡ In this listing published results are given without adjustment or correction.