Record Nr.

UNINA9910452298303321

Autore

Fong C. Y (Ching-yao)

Titolo

Half-metallic materials and their properties [[electronic resource] /] / C.Y. Fong, J.E. Pask & L.H. Yang

Pubbl/distr/stampa


London, UK, : Imperial College Press
Singapore, : Dist. by World Scientific, 2013

ISBN

1-299-46215-4

1-908977-13-2

Descrizione fisica

1 online resource (304 p.)

Collana

Materials for engineering ; ; v. 2

Altri autori (Persone)

PaskJ. E

YangL. H

Disciplina

620

620.16

Soggetti

Metallic composites

Metals

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Acknowledgments; Preface; Contents; 1. Introduction; 1.1 Background; 1.2 Classes of Half-metals; 1.3 Half-metallic Devices; 2. Methods of Studying Half-metals; 2.1 Introduction; 2.2 Molecular BeamEpitaxy (MBE); 2.2.1. Schematic setup; 2.2.2. Issues concerning growth; 2.2.2.1. Substrate for Heusler alloys; 2.2.2.2. Substrate for HMs with ZB structure; 2.2.2.3. Temperature; 2.3 Characterization of Samples; 2.3.1. Reflection high-energy electron diffraction (RHEED); 2.3.1.1. Basic information; 2.3.1.2. What is measured; 2.3.2. X-ray reflectometry (XRR); 2.3.2.1. Basic information

2.3.2.2. Schematic setup2.3.2.3. What is measured; 2.3.3. Scanning tunneling microscopy (STM); 2.3.3.1. Basic information; 2.3.3.2. What is measured; 2.3.4. Auger electron spectroscopy (AES); 2.3.4.1. Basic processes; 2.3.4.2. Simplified experimental setup; 2.3.4.3. What is measured; 2.3.4.4. Remarks; 2.4 Methods of Determining Physical Properties; 2.4.1. Magnetic properties; 2.4.1.1. SQUID-based magnetometer; 2.4.1.2. Magneto-optical Kerr effect (MOKE); 2.4.1.3. X-ray magnetic circular dichroism (XMCD); 2.4.2. Transport properties;

2.4.2.1. Magnetic tunnel junctions (MTJs)

2.4.2.2. Resistivity2.4.2.3. Hall conductivity; 2.4.3. Half-metallic properties; 2.4.3.1. Spin-polarized angle-resolved photoemission spectroscopy (ARPES); 2.4.3.2. Ferromagnet-superconductor tunneling; 2.4.3.3. Andreev reflection; 2.4.3.4. Curie temperature TC; 2.5 TheoreticalMethods; 2.5.1. Density functional theory (DFT); 2.5.1.1. Hohenberg-Kohn theorem I; 2.5.1.2. Hohenberg-Kohn theorem II; 2.5.2. Kohn-Sham equations; 2.5.2.1. Local density approximation (LDA); 2.5.2.2. Spin-polarized Kohn-Sham equations; 2.5.2.3. Generalized gradient approximation (GGA)

2.5.3. Methods of calculating electronic properties2.5.3.1. Linearized augmented plane wave (LAPW) method; 2.5.3.2. Korringa-Kohn-Rostoker (KKR) method; 2.5.3.3. Pseudopotential method; 2.5.3.4. LDA+U; 2.5.4. Methods of calculating Curie temperature TC; 2.5.4.1. Determination of the dominant excitation; 2.5.4.2. Basic idea; 2.5.4.3. Comments on practical calculations; 3. Heusler Alloys; 3.1 Introduction; 3.2 Half-Heusler and Full-Heusler Alloys; 3.3 Methods of Growing Heusler Alloys; 3.3.1. Bulk Heusler alloys; 3.3.1.1. Arc-melting method; 3.3.1.2. Tri-arc Czochralski method

3.3.2. Thin films3.3.2.1. MBE method; 3.3.2.2. Radio frequency magnetron sputtering method; 3.3.2.3. Pulsed laser deposition (PLD); 3.4 Characterization of Heusler Alloys; 3.4.1. Bulk Heusler alloys; 3.4.2. Thin films; 3.4.2.1. Auger electron spectroscopy (AES); 3.4.2.2. Low-energy electron diffraction (LEED); 3.5 Physical Properties of Bulk Heusler Alloys; 3.5.1. Magnetic moments and the Slater-Pauling rule; 3.5.2. Insulating gap in half-metallic Heusler alloys; 3.5.2.1. Half-Heusler alloys; 3.5.2.2. Full-Heusler alloys; 3.5.3. Polarization at EF; 3.5.4. Magnetic moments

3.5.5. Curie temperature TC

Sommario/riassunto

This volume provides a detailed treatment of half-metallic materials and their properties from both an experimental and theoretical point of view. It discusses the methods used to understand and predict the properties of half-metals and the gamut of other materials amenable to these techniques. It also offers an expansive bibliography to facilitate further and deeper research. This book provides the precise definitions of all key terminology used in the vast and varied literature.This is the first comprehensive monograph on the subject and will serve as a starting point for graduate students a