Physical properties of SmMIn5 (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.gif" overflow="scroll"><mml:mi mathvariant="normal">M</mml:mi><mml:mo>=</mml:mo><mml:mi>Co</mml:mi></mml:math>, Rh, Ir)

Inada, Yuji; Hedo, Masato; Fujiwara, Takeshi; Sadamasa, T.; Uwatoko, Yoshiya

doi:10.1016/j.physb.2006.01.148

Cited by 9 publications

(8 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From published studies, we expect a superconducting transition in CeCoIn 5 3-5 and three successive phase transitions, one of which is AFM, for SmCoIn 5 . 11,12 Our data for the parent compounds are consistent with published studies; rare-earth substitution (Sm for Ce or Ce for Sm) away from the Ce-and Sm-based parent compounds suppresses these transitions to lower temperatures.…”

Section: B Electrical Resistivitysupporting

confidence: 90%

“…4. The highest transition temperature, T 1 , is the Néel temperature, T N , as reported by Inada et al 11 As we substitute Ce into SmCoIn 5 , we observe a continuous suppression of T 1 down to x = 0.175. The second temperature, T 2 , is also suppressed; however, it is not suppressed at the same rate as T 1 , which eventually leads to an overlap of both transition signatures.…”

Section: Specific Heatsupporting

confidence: 82%

“…Due to the broad features from magnetic ordering and the limited temperature range in which the Debye model is applicable, characterized by the calculated Debye temperature, it is difficult to extrapolate meaningful values of γ. We looked at two characteristic "γ" values as a general observation, one at 15 K and another at 2 K to compare to the value (γ = 53 mJ/mol K 2 ) from a study of SmCoIn 5 by Inada et al 11 To do this, we extracted values for C e /T at 2 K, where C e /T ≡ C/T − βT 2 is the electronic contribution to the specific heat divided by temperature; we performed a similar analysis above the magnetic ordering temperature by selecting C e /T at 15 K. The results for C e /T are plotted in Fig. 11, where we observe that values for C e /T at high and low T behave in opposite manners; at 2 K, the value of C e /T simply decreases with x for x ≥ 0.25 (concentrations where the AFM transition is clearly observed).…”

Section: A Electronic and Phonon Contributions To Specific Heatmentioning

confidence: 99%

“…[3][4][5][6] The compound CeCoIn 5 is a d-wave superconductor 7-10 that has provided an opportunity to study the effects of impurities, either magnetic or non-magnetic, on an unconventional superconductor. The compound SmCoIn 5 is iso-structural with CeCoIn 5 , but undergoes three successive phase transitions 11 and has not been found to exhibit superconductivity under ambient or applied pressure up to 8 GPa. 12 This is in contrast with the related compound PuCoIn 5 in which superconductivity was observed 13 ; PuCoIn 5 and SmCoIn 5 have the same crystal structure and Pu 3+…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Temperature versus Sm concentration phase diagram and quantum criticality in the correlated electron system Ce1−xSmxCoIn5

et al. 2018

View full text Add to dashboard Cite

We report electrical resistivity, magnetization, and specific heat measurements on the correlated electron system Ce1−xSmxCoIn5 (0 ≤ x ≤ 1). Superconductivity (SC) in the heavy fermion compound CeCoIn5, which is suppressed with increasing Sm concentration x, and antiferromagnetic (AFM) order of SmCoIn5, which is suppressed with decreasing x, converge near a quantum critical point at xQCP ≈ 0.15, with no indication of coexistence of SC and AFM in the vicinity of the QCP. Non-Fermi liquid (NFL) behavior is observed in the normal state electrical resistivity, ρ(T), and specific heat, C(T), in the vicinity of the QCP; e.g., the coefficient and the exponent of the powerlaw T-dependence of ρ(T) exhibit pronounced maxima and minima, respectively, at xQCP, while C(T)/T exhibits a logarithmic divergence in T at xQCP. A low-temperature upturn in ρ(T) develops in the range 0.70 ≤ x ≤ 0.85 which is reminiscent of a single impurity Kondo effect, suggesting that Sm substitution tunes the relative strength of competing Kondo and Ruderman-Kittel-Kasuya-Yosida (RKKY) energy scales. The suppression of SC with increasing x is probably associated with the exchange interaction between the Ce quasiparticles involved in the superconductivity and the magnetic moments of the Sm ions.

show abstract

Section: B Electrical Resistivitysupporting

confidence: 90%

Section: Specific Heatsupporting

confidence: 82%

Section: A Electronic and Phonon Contributions To Specific Heatmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Temperature versus Sm concentration phase diagram and quantum criticality in the correlated electron system Ce1−xSmxCoIn5

et al. 2018

View full text Add to dashboard Cite

show abstract

“…GdCoIn 5 is member of the extensively studied 115 family of compounds RTIn 5 (R = rare earth, T = Co, Rh, Ir). Different experiments 1 show a second-order phase transition to an antiferromagnetic state at T N = 30 K. Magnetic ground states are also observed in several other members of the 115 family [2][3][4][5] . In general, these magnetic states are influentiated by the crystal electric field (CEF) produced by the surrounding ions 6 .…”

Section: Introductionmentioning

confidence: 86%

Evidence of a small crystal field anisotropy in GdCoIn$_5$

Betancourth,

Correa,

García

2014

Preprint

View full text Add to dashboard Cite

We investigate the effects of an applied magnetic field on the magnetic properties of the antiferromagnet GdCoIn5. The prominent anisotropy observed in the susceptibility below TN is rapidly suppressed by a field of just a few Tesla. Further evidence of this low energy-scale is obtained from magnetoresistance and magnetostriction experiments. The lattice lenght, particulary, shows a sudden change below 2 Tesla when the magnetic field is applied perpendicular to the crystallographic ĉ-axis. The experimental results as a whole can be attributed to a small but non negligible higher-order crystalline electric field.

show abstract