Pressure suppression of unconventional charge-density-wave state in PrRu4P12 studied by optical conductivity

被引：4

作者：

Okamura, H. ^{[1
]}

Ohta, N. ^{[1
]}

Takigawa, A. ^{[1
]}

Matsutori, I. ^{[1
]}

Shoji, K. ^{[1
]}

Miyata, K. ^{[1
]}

Matsunami, M. ^{[1
]}

Nanba, T. ^{[1
]}

Sugawara, H. ^{[1
]}

Sekine, C. ^{[2
]}

Shirotani, I. ^{[2
]}

Sato, H. ^{[3
]}

Moriwaki, T. ^{[4
,5
]}

Ikemoto, Y. ^{[4
,5
]}

Liu, Z. ^{[6
]}

Carr, G. L. ^{[7
]}

机构：

[1] Kobe Univ, Grad Sch Sci, Dept Phys, Kobe, Hyogo 6578501, Japan

[2] Muroran Inst Technol, Dept Elect & Elect Engn, Muroran, Hokkaido 0508585, Japan

[3] Tokyo Metropolitan Univ, Grad Sch Sci, Hachioji, Tokyo 1920397, Japan

[4] Japan Synchrotron Radiat Res Inst, Sayo 6795198, Japan

[5] SPring 8, Sayo 6795198, Japan

[6] Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA

[7] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 20期

关键词：

METAL-INSULATOR-TRANSITION; F HYBRIDIZATION; FERMI-SURFACE; SKUTTERUDITE; SPECTROSCOPY; DYNAMICS; BL43IR;

D O I：

10.1103/PhysRevB.85.205116

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Optical conductivity [sigma(omega)] of PrRu4P12 has been studied under high pressure to 14 GPa, at low temperatures to 8 K, and at photon energies 12 meV-1.1 eV. The energy gap in sigma(omega) at ambient pressure, caused by a metal-insulator transition due to an unconventional charge-density-wave formation at 63 K, is gradually filled in with increasing pressure to 10 GPa. At 14 GPa and below 30 K, sigma(omega) exhibits a pronounced Drude-type component due to free carriers. This indicates that the initial insulating ground state at zero pressure has been turned into a metallic one at 14 GPa. This is consistent with a previous resistivity study under pressure, where the resistivity rapidly decreased with cooling below 30 K at 14 GPa. The evolution of electronic structure with pressure is discussed in terms of the hybridization between the 4f and conduction electrons.

引用

页数：7

共 50 条

[41] Thermal and optical conductivity in the Holstein model at half filling and finite temperature in the Luttinger-liquid and charge-density-wave regime
Jansen, David
Heidrich-Meisner, Fabian
PHYSICAL REVIEW B, 2023, 108 (08)
[42] Revealing multiple charge-density-wave orders in TbTe3 by optical conductivity and ultrafast pump-probe experiments
Chen, R. Y.
Hu, B. F.
Dong, T.
Wang, N. L.
PHYSICAL REVIEW B, 2014, 89 (07):
[43] Polarized optical reflectance and electronic structure of the charge-density-wave materials η- and γ-Mo4O11
Zhu, Z
Chowdhary, S
Long, VC
Musfeldt, JL
Koo, HJ
Whangbo, MH
Wei, X
Negishi, H
Inoue, M
Sarrao, J
Fisk, Z
PHYSICAL REVIEW B, 2000, 61 (15) : 10057 - 10065
[44] The charge-density-wave transition in Lu5Ir4Si10 under uniaxial pressure
Giffhorn, M
Becker, B
Menovsky, AA
Mydosh, JA
Nieuwenhuys, GJ
Ramakrishnan, S
Schubert, S
Eichler, A
HIGH PRESSURE RESEARCH, 2000, 18 (1-6) : 159 - 163
[45] PRESSURE-INDUCED CONTINUOUS PHASE-TRANSITION OF CHARGE-DENSITY-WAVE STATE IN A LINEAR-CHAIN COMPLEX
KURODA, N
SAKAI, M
NISHINA, Y
SASAKI, K
PHYSICAL REVIEW LETTERS, 1992, 68 (20) : 3056 - 3059
[46] Pressure Suppression of Spin-Density-Wave Gap in the Optical Conductivity of SrFe2As2
Okamura, Hidekazu
Shoji, Ko
Miyata, Kazuaki
Sugawara, Hitoshi
Moriwaki, Taro
Ikemoto, Yuka
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2013, 82 (07)
[47] Evidence of charge-density-wave fluctuations in the low frequency optical conductivity of K0.3MoO3 and (TaSe4)2I
Schwartz, A.
Dressel, M.
Gruner, G.
Gorshunov, B.P.
Volkov, A.A.
Kozlov, G.V.
Thieme, S.
Degiorgi, L.
Ferroelectrics, 1996, 176 (1 -4 pt 1): : 309 - 319
[48] Giant Nernst effect in the incommensurate charge density wave state of P4W12O44
Kolincio, Kamil K.
Daou, Ramzy
Perez, Olivier
Guerin, Laurent
Fertey, Pierre
Pautrat, Alain
PHYSICAL REVIEW B, 2016, 94 (24)
[49] HIGH-PRESSURE STUDY OF A CHARGE-DENSITY-WAVE COMPOUND (NBSE4)10/3I
PETRAVIC, M
FORRO, L
COOPER, JR
LEVY, F
PHYSICAL REVIEW B, 1989, 40 (11) : 8064 - 8067
[50] Diagonal charge-density-wave state in the insulating spin-glass phase of La2-xSrxCuO4
Sushkov, O. P.
PHYSICAL REVIEW B, 2008, 77 (19):

← 1 2 3 4 5 →