Anisotropy of conducting p states and 11B nuclear spin-lattice relaxation in Mg1-xAlxB2

K. D. Belashchenko, V. P. Antropov, Sergey Rashkeev

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We calculated the nuclear-spin-lattice relaxation rate in the Mg1-xAlxB2 system and found that the orbital relaxation mechanism dominates over the dipolar and Fermi-contact mechanisms in MgB2, whereas in AlB2 due to a smaller density of states and strong anisotropy of boron p orbitals the relaxation is completely determined by Fermi-contact interaction. The results for MgB2 are compared with existing experimental data. To validate the theory, nuclear resonance experiments for the studied diboride alloy system are needed.

Original languageEnglish
Article number132506
Pages (from-to)1325061-1325063
Number of pages3
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number13
Publication statusPublished - 1 Oct 2001
Externally publishedYes

Fingerprint

Boron
Spin-lattice relaxation
spin-lattice relaxation
nuclear spin
electric contacts
Anisotropy
conduction
orbitals
anisotropy
boron
Experiments
interactions

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Anisotropy of conducting p states and 11B nuclear spin-lattice relaxation in Mg1-xAlxB2 . / Belashchenko, K. D.; Antropov, V. P.; Rashkeev, Sergey.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 64, No. 13, 132506, 01.10.2001, p. 1325061-1325063.

Research output: Contribution to journalArticle

@article{7956333831654f1cb742cdb989fdab1a,
title = "Anisotropy of conducting p states and 11B nuclear spin-lattice relaxation in Mg1-xAlxB2",
abstract = "We calculated the nuclear-spin-lattice relaxation rate in the Mg1-xAlxB2 system and found that the orbital relaxation mechanism dominates over the dipolar and Fermi-contact mechanisms in MgB2, whereas in AlB2 due to a smaller density of states and strong anisotropy of boron p orbitals the relaxation is completely determined by Fermi-contact interaction. The results for MgB2 are compared with existing experimental data. To validate the theory, nuclear resonance experiments for the studied diboride alloy system are needed.",
author = "Belashchenko, {K. D.} and Antropov, {V. P.} and Sergey Rashkeev",
year = "2001",
month = "10",
day = "1",
language = "English",
volume = "64",
pages = "1325061--1325063",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics Publising LLC",
number = "13",

}

TY - JOUR

T1 - Anisotropy of conducting p states and 11B nuclear spin-lattice relaxation in Mg1-xAlxB2

AU - Belashchenko, K. D.

AU - Antropov, V. P.

AU - Rashkeev, Sergey

PY - 2001/10/1

Y1 - 2001/10/1

N2 - We calculated the nuclear-spin-lattice relaxation rate in the Mg1-xAlxB2 system and found that the orbital relaxation mechanism dominates over the dipolar and Fermi-contact mechanisms in MgB2, whereas in AlB2 due to a smaller density of states and strong anisotropy of boron p orbitals the relaxation is completely determined by Fermi-contact interaction. The results for MgB2 are compared with existing experimental data. To validate the theory, nuclear resonance experiments for the studied diboride alloy system are needed.

AB - We calculated the nuclear-spin-lattice relaxation rate in the Mg1-xAlxB2 system and found that the orbital relaxation mechanism dominates over the dipolar and Fermi-contact mechanisms in MgB2, whereas in AlB2 due to a smaller density of states and strong anisotropy of boron p orbitals the relaxation is completely determined by Fermi-contact interaction. The results for MgB2 are compared with existing experimental data. To validate the theory, nuclear resonance experiments for the studied diboride alloy system are needed.

UR - http://www.scopus.com/inward/record.url?scp=84988770671&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84988770671&partnerID=8YFLogxK

M3 - Article

VL - 64

SP - 1325061

EP - 1325063

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 13

M1 - 132506

ER -