Infrared study of valence transition compound YbInCu4 using cleaved surfaces

Details Infrared study of valence transition compound YbInCu4 using cleaved surfaces Infrared study of valence transition compound YbInCu4 using cleaved surfaces

2006-09-07

arxiv.org/abs/cond-mat/0609157v3

Phys. Rev. B 75, 041101(R) (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures, Fig.1(a) corrected

Scientific paper

10.1103/PhysRevB.75.041101

Optical reflectivity R(w) of YbInCu4 single crystals has been measured across its first-order valence transition at T_v ~ 42 K, using both polished and cleaved surfaces. R(w) measured on cleaved surfaces Rc(w) was found much lower than that on polished surface Rp(w) over the entire infrared region. Upon cooling through T_v, Rc(w) showed a rapid change over a temperature range of less than 2 K, and showed only minor changes with further cooling. In contrast, Rp(w) showed much more gradual and continuous changes across T_v, similarly to previously reported data on polished surfaces. The present result on cleaved surfaces demonstrates that the microscopic electronic structures of YbInCu4 observed with infrared spectroscopy indeed undergo a sudden change upon the valence transition. The gradual temperature-evolution of Rp(w) is most likely due to the compositional and/or Yb-In site disorders caused by polishing.

Affiliated with

Also associated with

No associations

Rating

Infrared study of valence transition compound YbInCu4 using cleaved surfaces does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Infrared study of valence transition compound YbInCu4 using cleaved surfaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared study of valence transition compound YbInCu4 using cleaved surfaces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-317483