Magnetic Field Sensing Properties of Diluted Magnetic Semiconductor Based Nanocomposites

被引：5

作者：

Perrone, A. ^{[1
]}

Savchuk, A. I. ^{[2
]}

De Rosa, H. ^{[3
]}

Stolyarchuk, I. D. ^{[2
]}

Makoviy, V. V. ^{[2
]}

Smolinsky, M. M. ^{[2
]}

Savchuk, O. A. ^{[2
]}

机构：

[1] Univ Salento, Natl Inst Nucl Phys, Dept Math & Phys E De Giorgi, I-73100 Lecce, Italy

[2] Chernivtsi Natl Univ, Dept Phys Semicond & Nanostruct, UA-58012 Chernovtsy, Ukraine

[3] Univ Buenos Aires, Dpto Ingn Mecan & Naval, Lab Metalog, Fac Ingn, RA-1063 Buenos Aires, DF, Argentina

来源：

SENSOR LETTERS | 2013年 / 11卷 / 01期

关键词：

Diluted Magnetic Semiconductor; Cd1-xMnxTe; Cd1-xMnxS; Nanoparticles; Optical Density; Faraday Rotation; Magnetic Sensor;

D O I：

10.1166/sl.2013.2783

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Pulsed laser deposition has been applied for the fabrication of Cd1-xMnxTe nanoparticle in SiO2 matrix composite material. In addition, colloid chemistry methods have been used to prepare Cd1-xMnxS nanoparticle in polyvinylalcohol matrix composite films. Transmission electron microscopy and atomic force microscopy analyses confirmed the nanocrystallinity of both kinds of nanocomposites and allowed an estimate of the average diameter of diluted magnetic semiconductor nanoparticles embedded into SiO2 and polymer matrices. Optical spectra reveal a blue shift in the absorption edge and the exciton structure due to confinement effects in the studied samples. Faraday rotation spectra of the Cd1-xMnx Te/SiO2 composite demonstrate peculiarities, which are associated with both confinement effects and sp-d exchange interactions. In contrast, no enhancement of the Faraday rotation was observed in Cd1-xMnxS/polyvinylalcohol composites. The results obtained suggest that diluted magnetic semiconductor based nanocomposites are promising materials for Faraday effect based magnetic sensors for pulsed high magnetic fields measurements.

引用

页码：145 / 148

页数：4

共 13 条

[1] NEW ASPECTS OF GIANT EXCITON FARADAY-ROTATION IN CD1-XMNXTE SEMIMAGNETIC COMPOUND - FUNDAMENTALS AND APPLICATIONS [J].

AKSIONOV, DA ;

KONOV, VI ;

NIKITIN, PI ;

PROKHOROV, AM ;

SAVCHUK, AI ;

SAVITSKI, AV ;

ULYANITSKI, KS .

SENSORS AND ACTUATORS A-PHYSICAL, 1990, 23 (1-3) :875-878

[2] MAGNETIC-FIELD FIBEROPTIC SENSORS BASED ON FARADAY-EFFECT [J].

BARYBIN, SN ;

GRIGORENKO, AN ;

KONOV, VI ;

NIKITIN, PI .

SENSORS AND ACTUATORS A-PHYSICAL, 1991, 27 (1-3) :767-774

[3]

Chrisey D. B., 1994, Pulsed Laser Deposition of Thin Films

[4] DILUTED MAGNETIC SEMICONDUCTORS [J].

FURDYNA, JK .

JOURNAL OF APPLIED PHYSICS, 1988, 64 (04) :R29-R64

[5] Pulsed high magnetic field sensor using polymethyl methacrylate [J].

Hwang, Eul Ha ;

Kim, Byoung Yoon .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2006, 17 (07) :2015-2021

[6]

MILLER JC, 1991, LASER ABLATION

[7] THE FARADAY-EFFECT IN SEMIMAGNETIC SEMICONDUCTORS [J].

NIKITIN, PI ;

SAVCHUK, AI .

USPEKHI FIZICHESKIKH NAUK, 1990, 160 (11) :167-196

[8]

NIKITIN PI, 1993, SENSOR MATER, V4, P205

[9] State-of-the-art reactive pulsed laser deposition of nitrides [J].

Perrone, A .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2002, 41 (4A) :2163-2170

[10] Evolution of CdS:Mn nanoparticle properties caused by pH of colloid solution and ultrasound irradiation [J].

Savchuk, A. I. ;

Rudko, G. Yu. ;

Fediv, V. I. ;

Voloshchuk, A. G. ;

Gule, E. G. ;

Ivanchak, S. A. ;

Makoviy, V. V. .

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 7 NO 6, 2010, 7 (06) :1510-1512

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