Abstract
We study and analyze the infrared properties of single crystal MgAl 2 O 4 , an important substrate for high-T c superconducting films, from 10 to 300 cm -1 and 4.2 to 350K. A number of infrared active modes between 20-150 cm -1 have been observed. Some of these modes such as 68, 72, 82, 103 cm -1 are consist with the earlier reports by inelastic neutron scattering method and characterized as transverse acoustic phonon modes. Our measurements also shows extra modes such as 35, 44, 56, 75, 82 cm -1 . The spectra in the far-infrared region has about 60% transmission at 4.2K and opaque above 180cm -1 . The transparent properties of single crystal MgAl 2 O 4 in far infrared region in liquid helium temperature is especially good for HTSC thin films substrate.
| Original language | English |
|---|---|
| Pages (from-to) | 1445-1446 |
| Number of pages | 2 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 235-240 |
| Issue number | PART 2 |
| DOIs | |
| Publication status | Published - 1994 Jan 1 |
Fingerprint
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Cite this
Infrared properties of single crystal MgAl 2 O 4 , a substrate for high-temperature superconducting films . / Yang, Tzuen-Rong; Horng, Herng-Er; Yang, Hong-Chang; Jang, L. J.; Kang, W. N.; Yom, S. S.
In: Physica C: Superconductivity and its applications, Vol. 235-240, No. PART 2, 01.01.1994, p. 1445-1446.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Infrared properties of single crystal MgAl 2 O 4 , a substrate for high-temperature superconducting films
AU - Yang, Tzuen-Rong
AU - Horng, Herng-Er
AU - Yang, Hong-Chang
AU - Jang, L. J.
AU - Kang, W. N.
AU - Yom, S. S.
PY - 1994/1/1
Y1 - 1994/1/1
N2 - We study and analyze the infrared properties of single crystal MgAl 2 O 4 , an important substrate for high-T c superconducting films, from 10 to 300 cm -1 and 4.2 to 350K. A number of infrared active modes between 20-150 cm -1 have been observed. Some of these modes such as 68, 72, 82, 103 cm -1 are consist with the earlier reports by inelastic neutron scattering method and characterized as transverse acoustic phonon modes. Our measurements also shows extra modes such as 35, 44, 56, 75, 82 cm -1 . The spectra in the far-infrared region has about 60% transmission at 4.2K and opaque above 180cm -1 . The transparent properties of single crystal MgAl 2 O 4 in far infrared region in liquid helium temperature is especially good for HTSC thin films substrate.
AB - We study and analyze the infrared properties of single crystal MgAl 2 O 4 , an important substrate for high-T c superconducting films, from 10 to 300 cm -1 and 4.2 to 350K. A number of infrared active modes between 20-150 cm -1 have been observed. Some of these modes such as 68, 72, 82, 103 cm -1 are consist with the earlier reports by inelastic neutron scattering method and characterized as transverse acoustic phonon modes. Our measurements also shows extra modes such as 35, 44, 56, 75, 82 cm -1 . The spectra in the far-infrared region has about 60% transmission at 4.2K and opaque above 180cm -1 . The transparent properties of single crystal MgAl 2 O 4 in far infrared region in liquid helium temperature is especially good for HTSC thin films substrate.
UR - http://www.scopus.com/inward/record.url?scp=0343513835&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0343513835&partnerID=8YFLogxK
U2 - 10.1016/0921-4534(94)91947-X
DO - 10.1016/0921-4534(94)91947-X
M3 - Article
AN - SCOPUS:0343513835
VL - 235-240
SP - 1445
EP - 1446
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 2
ER -