Angle-resolved photoemission study of USb2 the 5f band struc(14)

Single crystal antiferromagnetic USb2 was studied at 15K by angle-resolved photoemission with an overall energy resolution of 24 meV. The measurements unambiguously show the dispersion of extremely narrow bands situated near the Fermi level. The peak at th

Figure captions

Fig.1. Comparison of the Fermi edge of Platinum with near – E F features of USb2. The dashed lines are the fitted data to the open circles (after a Shirley background has been removed). The FWHM values are defined mainly by instrumental resolution.

The natural line width is extremely narrow; the width calculated for hν = 34 eV is below 10 meV.

Fig.2. a) High-resolution angle-resolved photoemission spectra of USb2 within 800 meV of E F taken at hν = 34 eV,

b) The same valence band spectra of USb2 within the first 0.08 eV of E F.

Fig.3. High-resolution angle-resolved photoemission spectra of USb2 within 800 meV of

E F taken at hν = 43 eV.

Fig.4. High-resolution angle-resolved photoemission spectra of USb2 within 800 meV of

E F taken at hν = 60 eV.

Fig.5. Normal emission spectra of USb2 taken in a controlled surface termination experiment.

Fig.6. Normal emission spectra of USb2 within 70 meV of E F.

Fig.7. Normal emission spectra taken at Fano resonance (108 eV) and antiresonance (102 eV) at 15K.

14

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说教育文库Angle-resolved photoemission study of USb2 the 5f band struc(14)在线全文阅读。