Specific heat in high magnetic fields and non-Fermi-liquid behavior in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">Ce</mml:mi><mml:mi>M</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">In</mml:mi></mml:mrow><mml:mrow><mml:mn>5</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo>(</mml:mo><mml:mi>M</mml:mi><mml:mo>=</mml:mo><mml:mi mathvariant="normal"

Kim, J. S.; Alwood, J.; Stewart, G. R.; Sarrao, J. L.; Thompson, J. D.

doi:10.1103/physrevb.64.134524

Cited by 92 publications

(71 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…High quality single-crystals of CeCoIn 5 were grown by a self-flux method in excess indium as in the study by Petrovic et al 1 and Paglione et al 26 The microwave measurements were carried out on a mm-sized platelet with naturally formed, mirror-like a-b plane faces. This sample was the same as that used in the study by Ö zcan et al 19 The width of the (003) X-ray rocking curve was 0.014°, indicating high crystallinity.…”

Section: Methodsmentioning

confidence: 99%

“…At intermediate frequencies, much information can be obtained on the scattering dynamics of the thermally excited quasiparticles 14 . This is of particular interest in CeCoIn 5 because normal-state transport measurements reveal strong inelastic scattering and non-Fermi-liquid behaviour 25,26 . In the cuprates, where similarly strong scattering is observed in the normal state 27 , electrodynamic measurements show a rapid collapse in quasiparticle scattering on cooling through T c [28][29][30] , indicating that the charge carriers couple to a spectrum of fluctuations of electronic origin, in contrast to the phonons of a conventional metal.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Nodal quasiparticle dynamics in the heavy fermion superconductor CeCoIn5 revealed by precision microwave spectroscopy

et al. 2013

Self Cite

View full text Add to dashboard Cite

CeCoIn 5 is a heavy fermion superconductor with strong similarities to the high-T c cuprates, including quasi-two-dimensionality, proximity to antiferromagnetism and probable d-wave pairing arising from a non-Fermi-liquid normal state. Experiments allowing detailed comparisons of their electronic properties are of particular interest, but in most cases are difficult to realize, due to their very different transition temperatures. Here we use low-temperature microwave spectroscopy to study the charge dynamics of the CeCoIn 5 superconducting state. The similarities to cuprates, in particular to ultra-clean YBa 2 Cu 3 O y , are striking: the frequency and temperature dependence of the quasiparticle conductivity are instantly recognizable, a consequence of rapid suppression of quasiparticle scattering below T c ; and penetration-depth data, when properly treated, reveal a clean, linear temperature dependence of the quasiparticle contribution to superfluid density. The measurements also expose key differences, including prominent multiband effects and a temperature-dependent renormalization of the quasiparticle mass.

show abstract

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Nodal quasiparticle dynamics in the heavy fermion superconductor CeCoIn5 revealed by precision microwave spectroscopy

et al. 2013

Self Cite

View full text Add to dashboard Cite

show abstract

“…At the same field, non-Fermi liquid (NFL) behavior has been reported from the results of a logarithmic temperature dependence of C/T up to about 10 K [6]. This result that a field tuned quantum critical point (QCP) happens coincidentally at the upper critical field indicates that CeCoIn 5 is close to antiferromagnetic criticality.…”

mentioning

confidence: 50%

“…The unusual properties of CeCoIn 5 have been investigated by various experiments such as specific heat [2,[4][5][6], magnetic susceptibility [5,7], resistivity [3,8], thermal conductivity [4], NMR T 1 measurement [9,10], and de Haas-van Alphen (dHvA) [8,11]. These results suggest an unconventional superconductivity in this complex compound.…”

mentioning

confidence: 99%

Effect of Disorder Induced by Heavy-Ion Irradiation on CeCoIn5 Superconductivity

Kim

Bedorf²,

Stewart

2009

J Low Temp Phys

Self Cite

View full text Add to dashboard Cite

We present a study of the effect of heavy-ion irradiation on a thinned single crystal of the unconventional heavy fermion superconductor CeCoIn 5 . Magnetic susceptibility and low-temperature specific heat results show that the superconducting transition temperature (T c ) changed only 4% with irradiation of 1 × 10 12 ions/cm 2 , Energy = 1 GeV, while the specific heat jump at T c , C, divided by C n , where C n is the normal state specific heat just above T c , was reduced to 3.6 from C/C n = 4.5 for unirradiated CeCoIn 5 . The increase of low-temperature magnetic susceptibility and the saturation in magnetization suggest that the defects induced by heavy-ion irradiation are magnetic in nature, as was seen in the case of neutron irradiation on the heavy fermion superconductors, UBe 13 and UPt 3 . The non-Fermi liquid behavior of the irradiated sample, based on the temperature dependence of the low temperature magnetic susceptibility, is significantly altered.

show abstract

“…When T 0 is suppressed by application of a magnetic field the NFL resistivity can be observed down to 60 mK. Specific heat measurements in zero field show that C/T can be fitted as γ − AT for 0.4 K < T < 2.5 K [153]. In a magnetic field of 6 T applied perpendicular to the basal plane, this changes to γ 0 − AT 1/2 for 0.6 < T < 6 K which compares well to NFL theory for 3D antiferromagnetic fluctuations [38,41].…”

Section: Cein 3 and Cemin (M = Co Ir Rh)mentioning

confidence: 90%

Non-Fermi Liquid Regimes and Superconductivity in the Low Temperature Phase Diagrams of Strongly Correlated d- and f-Electron Materials

et al. 2010

View full text Add to dashboard Cite

Standard models for simple metals and insulators often fail for systems based on elements with unstable d-or f -electron shells, where strong electronic correlations can generate new and unexpected states of matter. Such a scenario can often be induced when a magnetic phase transition is tuned to absolute zero temperature by an external control parameter such as chemical composition, pressure or magnetic field. At the resulting quantum critical point (QCP), emergent phenomena, such as unconventional superconductivity and novel magnetic phases are frequently observed. The temperature and energy dependences of the physical properties are also found to deviate from expectations for a simple Fermi liquid. This "non-Fermi-liquid" (NFL) behavior is commonly manifested as weak power laws and logarithmic divergences in the physical properties at low temperatures and is often found in a V-shaped region near a QCP, which has become the "classic" QCP phase diagram. However, there is also a growing number of materials where the NFL behavior either occurs far away from the QCP, within an ordered phase, or may not be associated with any putative QCP. Thus, after nearly 20 years of research, it remains unknown whether NFL physics is universal, or if a multitude of unique subclasses exist. In this article, we review research that has primarily been carried out in our laboratory on systems that exhibit NFL behavior that does not conform to the "classic" QCP scenario.

show abstract

Specific heat in high magnetic fields and non-Fermi-liquid behavior inCeMIn5(M=

Cited by 92 publications

References 27 publications

Nodal quasiparticle dynamics in the heavy fermion superconductor CeCoIn5 revealed by precision microwave spectroscopy

Nodal quasiparticle dynamics in the heavy fermion superconductor CeCoIn5 revealed by precision microwave spectroscopy

Effect of Disorder Induced by Heavy-Ion Irradiation on CeCoIn5 Superconductivity

Non-Fermi Liquid Regimes and Superconductivity in the Low Temperature Phase Diagrams of Strongly Correlated d- and f-Electron Materials

Contact Info

Product

Resources

About