The low temperature heat capacity and electrical resistivity of ReO3

King, Christopher N.; Kirsch, H.C.; Geballe, T. H.

doi:10.1016/0038-1098(71)90510-2

Cited by 43 publications

(21 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The calculated ⌰ D amounts to 353 K. This value remains in a good agreement with ⌰ D = 327 K determined from the specific-heat capacity experiments 10 and electrical-conductivity measurements.…”

Section: Resultssupporting

confidence: 72%

See 1 more Smart Citation

Lattice dynamics of rhenium trioxide from the quasiharmonic approximation

Wdowik

Parliński

Chatterji³

et al. 2010

Phys. Rev. B

View full text Add to dashboard Cite

The quasiharmonic theory is applied to study the lattice dynamics and thermal properties of rhenium trioxide, a material exhibiting the negative thermal-expansion phenomenon. Phonons are calculated at several external pressures. The pressure dependence of the M, R, and zone-center phonon modes is analyzed. Relying on the Grüneisen formalism an influence of temperature on the M phonon mode is investigated. The calculated free energy of the system provides predictions for the temperature dependence of such quantities as equilibrium volume and crystal thermal expansivity. The mean-squared vibrations of rhenium-trioxide atoms are investigated versus temperature and pressure. Results of the calculations indicate a softening of the M and R phonons with pressure and a large negative Grüneisen constants for these modes. A decrease in the crystal volume is observed up to 170 K. The thermal-expansion coefficient shows a minimum in the vicinity of 100 K which corresponds to a minimum of the anisotropy in the oxygen thermal vibrations perpendicular to the Re-O bond and along the bond. Anisotropy in the oxygen Debye-Waller factors follows from the anisotropy of the force constants at the oxygen site. Inelastic neutron-scattering measurements performed at room temperature are reported together with the generalized phonon densities of states. A comparison between present calculations and the experimental data as well as other theoretical studies is provided.

show abstract

Section: Resultssupporting

confidence: 72%

“…Rhenium trioxide, ReO 3 , is unique among such compounds since it is a metal with remarkably low electrical resistivity 10,11 being comparable to that of cooper or silver. The metallic conductivity of ReO 3 is assigned to delocalization of 5d electrons of Re atom.…”

Section: Introductionmentioning

confidence: 99%

Lattice dynamics of rhenium trioxide from the quasiharmonic approximation

Wdowik

Parliński

Chatterji³

et al. 2010

Phys. Rev. B

View full text Add to dashboard Cite

show abstract

“…A T 2 temperature dependence at extremely low temperatures is evidence of electron-electron scattering, but at higher temperatures may be an indication of the importance of optical in addition to acoustic phonon scattering. A superlinear dependence of resistivity on temperature has been observed in certain metal oxides and has been attributed to optical phonon scattering [36,37]. It is interesting to note that in our sample of Sb 2 Te 3 , if one excludes the temperature independent contribution (a = 73 ± 5 cm −1 ), the room temperature scattering rate (223 ± 5 cm −1 ) is about the same as that measured in Bi 2.002 Te 2.998 (22 meV or 177 cm −1 at 300 K) [31].…”

Section: Resultsmentioning

confidence: 99%

Infrared spectroscopy of Cr- and V-dopedSb2Te3: Dilute magnetic semiconductors

et al. 2014

View full text Add to dashboard Cite

Temperature dependent optical reflectance measurements on well characterized samples of nonintentionally doped, Cr-doped, and V-doped Sb 2 Te 3 show that both the parent compound and the Cr-doped version are narrow-gap semiconductors (E g ≈ 0.25 eV) with a conventional Drude free carrier absorption. The carrier density increases slightly with decreasing temperature while the scattering rate increases quadratically with temperature, which is a sign of the importance of optical phonon scattering. Vanadium doping introduces a change in the temperature dependence of the scattering rate as well as higher electrical resistivity than Cr-doped Sb 2 Te 3 . An analysis of the literature values of the saturation magnetization of Sb 2−x V x Te 3 for H c suggests V is in a mixed valence state V 3+ /V 4+ .

show abstract

“…But there are some materials of which resistivity shows nonlinear T dependence at a relatively high temperature because of the e-ph scattering by high energy optic phonons. For example, MgB 2 shows ϰ T 2 behavior in T c Ͻ T Շ 240 K, 4,5 and ReO 3 exhibits an unusual curvature in the resistivity in 120 K Շ T Շ 220 K. 23 When analyzing nonlinear T dependence of resistivity in these materials, it is a common approach to assume the optic phonons as Einstein-like. 6,23,24 In this method, the Boltzmann equation is a starting point:…”

Section: Discussionmentioning

confidence: 99%

Nonlinear temperature dependence of resistivity in single crystal Ag5Pb2O6

Yonezawa

Maeno

2004

Phys. Rev. B

View full text Add to dashboard Cite

We measured electrical resistivity, specific heat and magnetic susceptibility of single crystals of highly conductive oxide Ag 5 Pb 2 O 6 , which has a layered structure containing a Kagome lattice. Both the out-of-plane and in-plane resistivity show T 2 dependence in an unusually wide range of temperatures up to room temperature. This behavior cannot be accounted for either by electron correlation or by electron-phonon scattering with high frequency optic phonons. In addition, a phase transition with a large diamagnetic signal was found in the ac susceptibility, which strongly suggests the existence of a superconducting phase below 48 mK.

show abstract

The low temperature heat capacity and electrical resistivity of ReO3

Cited by 43 publications

References 7 publications

Lattice dynamics of rhenium trioxide from the quasiharmonic approximation

Lattice dynamics of rhenium trioxide from the quasiharmonic approximation

Infrared spectroscopy of Cr- and V-dopedSb2Te3: Dilute magnetic semiconductors

Nonlinear temperature dependence of resistivity in single crystal Ag5Pb2O6

Contact Info

Product

Resources

About