Thermoelectric power of the YbT2Zn20 (T = Fe, Ru, Os, Ir, Rh, and Co) heavy fermions
| Title | Thermoelectric power of the YbT2Zn20 (T = Fe, Ru, Os, Ir, Rh, and Co) heavy fermions |
| Publication Type | Journal Article |
| Year of Publication | 2012 |
| Authors | Mun ED, Jia S, Bud'ko SL, Canfield PC |
| Journal Title | Physical Review B |
| Volume | 86 |
| Pages | 115110 |
| Date Published | 09 |
| Type of Article | Article |
| ISBN Number | 1098-0121 |
| Accession Number | WOS:000308528200002 |
| Keywords | CE, DEGENERACY, KADOWAKI-WOODS RELATION, PHYSICAL-PROPERTIES, resistivity, seebeck coefficient, systems, thermopower, transport-properties, zero-temperature limit |
| Abstract | The thermoelectric power, S(T), of the heavy fermions YbT2Zn20 (T = Fe, Ru, Os, Ir, Rh, and Co) has been measured to shed further light on their strong electronic correlations. A large, negative, local minimum in S(T) with approximately -70 mu V/K is found for all compounds. From the observed local minimum, the energy scales associated with both the Kondo temperature and the crystalline electric field splitting are deduced and compared to previous specific heat measurements. At low temperatures, a highly enhanced S(T)/T value is observed for all members, although S(T) does show a deviation from a purely linear temperature dependence, S(T) = alpha T, for T not equal Fe members. In the zero-temperature limit, estimated by a simple linear extrapolation, the enhanced S(T)/T value strongly correlates with the electronic specific heat coefficient, C(T)/T |
| URL | <Go to ISI>://WOS:000308528200002 |
| DOI | 10.1103/PhysRevB.86.115110 |
| Alternate Journal | Phys. Rev. B |
