Anomalous pseudogap formation in a nonsuperconducting crystal of Nd1.85Ce0.15CuO4+γ:: Implication of charge ordering

被引：45

作者：

Onose, Y ^{[1
]}

Taguchi, Y ^{[1
]}

Ishikawa, T ^{[1
]}

Shinomori, S ^{[1
]}

Ishizaka, K ^{[1
]}

Tokura, Y ^{[1
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.82.5120

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Temperature variation of optical conductivity and Raman spectra has been investigated comparatively for oxygenated antiferromagnetic and reduced superconducting crystals of Nd1.85Ce0.15CuO4+y. While the spectra of the reduced crystal change little with temperature, in the spectra of oxygenated crystal a conspicuous pseudogap structure evolves around 0.3 eV and activated infrared and Raman Cu-O phonon modes grow in intensity, with decreasing temperature from 340 K. The origin is proposed to be charge ordering instability induced by a minute amount of interstitial apical oxygen, which seems to be also responsible for the absence of superconductivity in an oxygenated (or as-grown) crystal.

引用

页码：5120 / 5123

页数：4

共 25 条

[11] CU-63,CU-65-NMR STUDY OF OXIDIZED AND REDUCED ND2-XCEXCUO4 [J].

KAMBE, S ;

YASUOKA, H ;

TAKAGI, H ;

UCHIDA, S ;

TOKURA, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1991, 60 (02) :400-403

[12] Optical spectroscopy of the charge-ordering transition in La1.67Sr0.33NiO4 [J].

Katsufuji, T ;

Tanabe, T ;

Ishikawa, T ;

Fukuda, Y ;

Arima, T ;

Tokura, Y .

PHYSICAL REVIEW B, 1996, 54 (20) :14230-14233

[13] FERMI-SURFACE AND ELECTRONIC-STRUCTURE OF ND2-XCEXCUO4-DELTA [J].

KING, DM ;

SHEN, ZX ;

DESSAU, DS ;

WELLS, BO ;

SPICER, WE ;

ARKO, AJ ;

MARSHALL, DS ;

DICARLO, J ;

LOESER, AG ;

PARK, CH ;

RATNER, ER ;

PENG, JL ;

LI, ZY ;

GREENE, RL .

PHYSICAL REVIEW LETTERS, 1993, 70 (20) :3159-3162

[14] Are stripes a universal feature of high-Tc superconductors? [J].

Levi, BG .

PHYSICS TODAY, 1998, 51 (06) :19-22

[15] STUDIES OF STATIC MAGNETIC ORDER IN ELECTRON-SUPERCONDUCTORS AND THEIR PARENT COMPOUNDS [J].

LUKE, GM ;

STERNLIEB, BJ ;

UEMURA, YJ ;

BREWER, JH ;

KADONO, R ;

KIEFL, RF ;

KREITZMAN, SR ;

RISEMAN, TM ;

GOPALAKRISHNAN, J ;

SLEIGHT, AW ;

SUBRAMANIAN, MA ;

UCHIDA, S ;

TAKAGI, H ;

TOKURA, Y .

NATURE, 1989, 338 (6210) :49-51

[16]

MASSIDDA S, 1989, PHYSICA C, V157, P157

[17] MAGNETIC ORDER, SPIN CORRELATIONS, AND SUPERCONDUCTIVITY IN SINGLE-CRYSTAL ND1.85CE0.15CUO4+DELTA [J].

MATSUDA, M ;

ENDOH, Y ;

YAMADA, K ;

KOJIMA, H ;

TANAKA, I ;

BIRGENEAU, RJ ;

KASTNER, MA ;

SHIRANE, G .

PHYSICAL REVIEW B, 1992, 45 (21) :12548-12555

[18] Charge ordering and disordering transitions in Pr1-xCaxMnO3 (x=0.4) as investigated by optical spectroscopy [J].

Okimoto, Y ;

Tomioka, Y ;

Onose, Y ;

Otsuka, Y ;

Tokura, Y .

PHYSICAL REVIEW B, 1998, 57 (16) :R9377-R9380

[19] ON THE PHENOMENOLOGY OF THE INFRARED PROPERTIES OF THE COPPER-OXIDE SUPERCONDUCTORS [J].

ROMERO, DB ;

PORTER, CD ;

TANNER, DB ;

FORRO, L ;

MANDRUS, D ;

MIHALY, L ;

CARR, GL ;

WILLIAMS, GP .

SOLID STATE COMMUNICATIONS, 1992, 82 (03) :183-187

[20] Single-crystal neutron-diffraction structures of reduced and oxygenated Nd2-xCexCuOy [J].

Schultz, AJ ;

Jorgensen, JD ;

Peng, JL ;

Greene, RL .

PHYSICAL REVIEW B, 1996, 53 (09) :5157-5159

← 1 2 3 →