Infrared and optical properties of single-crystal YNi2B2C superconductor

被引：5

作者：

Kim, Jae Hoon ^{[1
]}

Paik, Hanhee ^{[1
]}

Mun, Mi-Ock ^{[1
]}

Cho, B.K. ^{[2
]}

Youn, S.J. ^{[3
]}

Kim, H.B. ^{[4
]}

Lee, Sung-Ik ^{[4
]}

机构：

[1] Department of Physics, Yonsei University, Seoul 120-749, Korea, Republic of

[2] Dept. of Mat. Sci. and Engineering, K-JIST, Kwangju 500-712, Korea, Republic of

[3] Department of Physics and Astronomy, Northwestern University, Evanston, IL 60201, United States

[4] Natl. Creative Res. Initiative C., Department of Physics, Pohang Univ. of Sci. and Technology, Pohang 790-784, Korea, Republic of

来源：

Physica C: Superconductivity and its Applications | 2000年 / 341-348卷

关键词：

Annealing - Band structure - Electronic structure - Ellipsometry - Fourier transform infrared spectroscopy - Optical properties - Permittivity;

D O I：

10.1016/S0921-4534(00)01050-9

中图分类号：

学科分类号：

摘要：

We have determined the optical conductivity and other key spectral functions of single-crystal YNi2B2C for the spectral range of 5 meV - 4.1 eV via infrared reflectivity measurements and spectroscopic ellipsometry. Polished crystals and polished-and-annealed crystals were compared to understand the effect of annealing on the optical response. The conductivity spectrum of YNi2B2C exhibits metallic electronic response with the screened plasma frequency of 3.76 eV. The free-electron response is not well described by the Drude model alone. A number of interband transitions also appear beyond 1 eV. Their energies and JDOS critical-point types are analyzed on the basis of selection rules and results of band-structure calculations.

引用

共 50 条

[1] Infrared and optical properties of single-crystal YNi2B2C superconductor
Kim, JH
Paik, H
Mun, MO
Cho, BK
Youn, SJ
Kim, HB
Lee, SI
PHYSICA C, 2000, 341 : 2233 - 2234
[2] MAGNETIC-PROPERTIES OF YNI2B2C SUPERCONDUCTOR
PROZOROV, R
YACOBY, ER
FELNER, I
YESHURUN, Y
PHYSICA C, 1994, 233 (3-4): : 367 - 372
[3] SUPERCONDUCTING STATE MAGNETIZATION AND CRITICAL FIELDS OF SINGLE-CRYSTAL YNI2B2C
MING, X
CANFIELD, PC
OSTENSON, JE
FINNEMORE, DK
CHO, BK
WANG, ZR
JOHNSTON, DC
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1994, 227 (3-4): : 321 - 326
[4] Superconducting state magnetization and critical fields of single-crystal YNi2B2C
Xu, Ming, 1600, Publ by Elsevier Science Publishers B.V., Amsterdam, Netherlands (227): : 3 - 4
[5] Single crystal growth of quaternary superconductor YNi2B2C by a floating zone method
Takeya, H
Hirano, T
Kadowaki, K
PHYSICA C, 1996, 256 (3-4): : 220 - 226
[6] SPECIFIC-HEAT OF SINGLE-CRYSTAL YNI2B2C AND TMNI2B2C SUPERCONDUCTORS
MOVSHOVICH, R
HUNDLEY, MF
THOMPSON, JD
CANFIELD, PC
CHO, BK
CHUBUKOV, AV
PHYSICA C, 1994, 227 (3-4): : 381 - 386
[7] Various vortex phase transitions in a weakly disordered superconductor YNi2B2C single crystal
Mun, MO
Lee, SI
Lee, WC
PHYSICA C, 1997, 282 : 2061 - 2062
[8] Normal state magnetic properties of superconducting single crystal YNi2B2C
Cho, BK
PHYSICA C, 2000, 341 : 2025 - 2026
[9] Boron isotope effect in single-crystal YNi2B2C and LuNi2B2C superconductors
Cheon, KO
Fisher, IR
Canfield, PC
PHYSICA C, 1999, 312 (1-2): : 35 - 39
[10] Boron isotope effect in single-crystal YNi2B2C and LuNi2B2C superconductors
Cheon, K.O.
Fisher, I.R.
Canfield, P.C.
Physica C: Superconductivity and its Applications, 1999, 312 (1-2): : 35 - 39

← 1 2 3 4 5 →