Experimental evidence for the p-d hybridization in the Cd-Ca quasicrystal:: Origin of the pseudogap -: art. no. 146402

被引：19

作者：

Tamura, R ^{[1
]}

Takeuchi, T

Aoki, C

Takeuchi, S

Kiss, T

Yokoya, T

Shin, S

机构：

[1] Tokyo Univ Sci, Dept Mat Sci & Technol, Chiba 2788510, Japan

[2] Nagoya Univ, Res Ctr Adv Waste & Emiss Management, Nagoya, Aichi 4648603, Japan

[3] Univ Tokyo, ISSP, Chiba 2778581, Japan

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.92.146402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ca 2p-3d resonant photoemission spectroscopy of a Cd6Ca crystalline approximant unambiguously demonstrates that the low-lying unoccupied 3d levels of calcium are lowered below the Fermi energy by the formation of the approximant, as suggested from electronic structure calculations [Y Ishii and T Fujiwara, Phys. Rev. Lett. 87, 206408 (2001)]. Moreover, the Ca 3d partial density of states (DOS) obtained near the Fermi energy is in reasonable agreement with theoretical Ca 3d DOS. These results verify the unconventional Picture that the origin of the pseudogap in the Cd-based quasicrystals is due to hybridization of the Ca 3d band with the Cd 5p band.

引用

页码：146402 / 1

页数：4

共 24 条

[1] Evidence for three nucleon force effects in p-d elastic scattering -: art. no. 024005
Kievsky, A
Wood, MH
Brune, CR
Fisher, BM
Karwowski, HJ
Leonard, DS
Ludwig, EJ
Rosati, S
Viviani, M
PHYSICAL REVIEW C, 2001, 63 (02): : 5
[2] Polarization observables in p-d scattering below 30 MeV -: art. no. 024002
Kievsky, A
Viviani, M
Rosati, S
PHYSICAL REVIEW C, 2001, 64 (02): : 240021 - 2400218
[3] Bond-length dependence of charge-transfer excitations and stretch phonon modes in perovskite ruthenates:: Evidence of strong p-d hybridization effects -: art. no. 085103
Lee, JS
Lee, YS
Noh, TW
Nakatsuji, S
Fukazawa, H
Perry, RS
Maeno, Y
Yoshida, Y
Ikeda, SI
Yu, JJ
Eom, CB
PHYSICAL REVIEW B, 2004, 70 (08) : 085103 - 1
[4] p-d scattering with a nonlocal nucleon-nucleon potential below the breakup threshold -: art. no. 044003
Doleschall, P
Papp, Z
PHYSICAL REVIEW C, 2005, 72 (04):
[5] Tuning of the average p-d exchange in (Ga,Mn)As by modification of the Mn electronic structure -: art. no. 233201
Hartmann, T
Ye, S
Klar, PJ
Heimbrodt, W
Lampalzer, M
Stolz, W
Kurz, T
Loidl, A
von Nidda, HAK
Wolverson, D
Davies, JJ
Overhof, H
PHYSICAL REVIEW B, 2004, 70 (23) : 1 - 4
[6] Direct experimental evidence of hybridization of Pb states with O 2p states in ferroelectric perovskite oxides -: art. no. 012103
Jan, JC
Tsai, HM
Pao, CW
Chiou, JW
Asokan, CK
Kumar, KPK
Pong, WF
Tang, YH
Tsai, MH
Kuo, SY
Hsieh, WF
APPLIED PHYSICS LETTERS, 2005, 87 (01)
[7] Effect of the s,p-d exchange interaction on the excitons in Zn1-xCoxO epilayers -: art. no. 035214
Pacuski, W
Ferrand, D
Cibert, J
Deparis, C
Gaj, JA
Kossacki, P
Morhain, C
PHYSICAL REVIEW B, 2006, 73 (03)
[8] Xenon melting curve to 80 GPa and 5p-d hybridization -: art. no. 257801
Ross, M
Boehler, R
Söderlind, P
PHYSICAL REVIEW LETTERS, 2005, 95 (25)
[9] Effects of covalency, p-d coupling, and epitaxial strain on the band offsets of II-VI semiconductors -: art. no. 165336
Segev, D
Wei, SH
PHYSICAL REVIEW B, 2003, 68 (16)
[10] Local properties and density of states in the two-dimensional p-d model of high-Tc superconductors -: art. no. 214515
Fiorentino, V
Mancini, F
Zasinas, E
Barabanov, AF
PHYSICAL REVIEW B, 2001, 64 (21)

← 1 2 3 →