Transverse laser induced thermoelectric voltage effect in tilted La0.5Sr0.5CoO3 thin films

被引：23

作者：

Wang, Y. ^{[1
]}

Yu, L. ^{[1
,2
]}

Zhang, P. X. ^{[1
,2
]}

机构：

[1] Kunming Univ Sci & Technol, Inst Adv Mat Photoelectrons, Kunming 650051, Peoples R China

[2] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

来源：

OPTICS AND LASER TECHNOLOGY | 2011年 / 43卷 / 08期

关键词：

Tilted La0.5Sr0.5CoO3 thin films; Laser induced thermoelectric voltage effect; Transverse Seebeck effect; STATE YBA2CU3O7-DELTA FILMS; DEVICES; SRTIO3;

D O I：

10.1016/j.optlastec.2011.04.021

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The transverse laser induced thermoelectric voltage effect has been investigated in tilted La0.5Sr0.5CoO3 thin films grown on vicinal cut LaAlO3 (1 0 0) substrates when films are irradiated by pulse laser at room temperature. The detected voltage signals are demonstrated to originate from the transverse Seebeck effect as the linear dependence of voltage on tilted angle in the range of small tilted angle. The Seebeck coefficient anisotropy Delta S of 0.03 mu V/K at room temperature is calculated and its distorted cubic structure is thought to be responsible for this. Films grown on a series of substrates with different tilted angles show the optimum angle of 19.8 degrees for the maximum voltage. Film thickness dependence of voltage has also been studied. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.

引用

页码：1462 / 1465

页数：4

共 21 条

[1] SYMMETRY-FORBIDDEN LASER-INDUCED VOLTAGES IN YBA2CU3O7 [J].

CHANG, CL ;

KLEINHAMMES, A ;

MOULTON, WG ;

TESTARDI, LR .

PHYSICAL REVIEW B, 1990, 41 (16) :11564-11567

[2] Anisotropy of thermoelectric properties in La2/3Ca1/3MnO3 thin films studied by laser-induced transient voltages [J].

Habermeier, HU ;

Li, XH ;

Zhang, PX ;

Leibold, B .

SOLID STATE COMMUNICATIONS, 1999, 110 (09) :473-478

[3] THERMOELECTRIC EFFECT IN NORMAL-STATE YBA2CU3O7-DELTA FILMS [J].

LENGFELLNER, H ;

ZEUNER, S ;

PRETTL, W ;

RENK, KF .

EUROPHYSICS LETTERS, 1994, 25 (05) :375-378

[4] GIANT VOLTAGES UPON SURFACE HEATING IN NORMAL YBA2CU3O7-DELTA FILMS SUGGESTING AN ATOMIC LAYER THERMOPILE [J].

LENGFELLNER, H ;

KREMB, G ;

SCHNELLBOGL, A ;

BETZ, J ;

RENK, KF ;

PRETTL, W .

APPLIED PHYSICS LETTERS, 1992, 60 (04) :501-503

[5] Crystal structure and metal-insulator transition of La1-xSrxCoO3 [J].

Mineshige, A ;

Inaba, M ;

Yao, TS ;

Ogumi, Z ;

Kikuchi, K ;

Kawase, M .

JOURNAL OF SOLID STATE CHEMISTRY, 1996, 121 (02) :423-429

[6] Transverse thermoelectric devices [J].

Reitmaier, C. ;

Walther, F. ;

Lengfellner, H. .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2010, 99 (04) :717-722

[7] Thermal properties of La0.5Sr0.5Co1-xNixO3-δ ceramics using photopyroelectric technique [J].

Sebastian, MT ;

Menon, CP ;

Philip, J ;

Schwartz, RW .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (05) :3206-3211

[8] Gigantic transverse voltage induced via off-diagonal thermoelectric effect in CaxCoO2 thin films [J].

Takahashi, Kouhei ;

Kanno, Tsutomu ;

Sakai, Akihiro ;

Adachi, Hideaki ;

Yamada, Yuka .

APPLIED PHYSICS LETTERS, 2010, 97 (02)

[9] The off-diagonal thermoelectric effect in inclinedly oriented thin films of layered cobaltite CaxCoO2 [J].

Takahashi, Kouhei ;

Sakai, Akihiro ;

Adachi, Hideaki ;

Kanno, Tsutomu .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2010, 43 (16)

[10] Tailoring of inclined crystal orientation in layered cobaltite thin films for the development of off-diagonal thermoelectric effect [J].

Takahashi, Kouhei ;

Sakai, Akihiro ;

Kanno, Tsutomu ;

Adachi, Hideaki .

APPLIED PHYSICS LETTERS, 2009, 95 (05)

← 1 2 3 →