Pressure dependence of the magnetization of MII(N(CN)2)2

mechanism for the long range magnetic ordering

Christopher J. Nuttall, Taishi Takenobu, Yoshihiro Iwasa, Mohamedally Kurmoo

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The ac-susceptibilities of the isostructural metal-organic magnets, MII(N(CN)2)2(M = Ni (1), Co (2) and Fe (3)) have been studied as a function of temperature and pressure. Large variation in behaviors has been observed; the transition temperature initially increases in all three compounds and at higher pressures that for (1) saturates, for (2) decreases and for (3) increases continuously. These behaviors are due to the competition between antiferromagnetic (t2g ↔ eg) and ferromagnetic (t2g ↔ t2g and eg ↔ eg) interactions to the most dominant exchange pathway, M...N≡C-N...M. A mechanism for the magnetic ordering is proposed.

Original languageEnglish
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume343
Publication statusPublished - 2000
Externally publishedYes

Fingerprint

pressure dependence
Magnetization
magnetization
Superconducting transition temperature
Magnets
magnets
Metals
transition temperature
magnetic permeability
metals
interactions
Temperature
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Pressure dependence of the magnetization of MII(N(CN)2)2 : mechanism for the long range magnetic ordering. / Nuttall, Christopher J.; Takenobu, Taishi; Iwasa, Yoshihiro; Kurmoo, Mohamedally.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 343, 2000.

Research output: Contribution to journalArticle

@article{665f864fae7744879d9ad86b76f3e545,
title = "Pressure dependence of the magnetization of MII(N(CN)2)2: mechanism for the long range magnetic ordering",
abstract = "The ac-susceptibilities of the isostructural metal-organic magnets, MII(N(CN)2)2(M = Ni (1), Co (2) and Fe (3)) have been studied as a function of temperature and pressure. Large variation in behaviors has been observed; the transition temperature initially increases in all three compounds and at higher pressures that for (1) saturates, for (2) decreases and for (3) increases continuously. These behaviors are due to the competition between antiferromagnetic (t2g ↔ eg) and ferromagnetic (t2g ↔ t2g and eg ↔ eg) interactions to the most dominant exchange pathway, M...N≡C-N...M. A mechanism for the magnetic ordering is proposed.",
author = "Nuttall, {Christopher J.} and Taishi Takenobu and Yoshihiro Iwasa and Mohamedally Kurmoo",
year = "2000",
language = "English",
volume = "343",
journal = "Molecular Crystals and Liquid Crystals",
issn = "1542-1406",
publisher = "Taylor and Francis Ltd.",

}

TY - JOUR

T1 - Pressure dependence of the magnetization of MII(N(CN)2)2

T2 - mechanism for the long range magnetic ordering

AU - Nuttall, Christopher J.

AU - Takenobu, Taishi

AU - Iwasa, Yoshihiro

AU - Kurmoo, Mohamedally

PY - 2000

Y1 - 2000

N2 - The ac-susceptibilities of the isostructural metal-organic magnets, MII(N(CN)2)2(M = Ni (1), Co (2) and Fe (3)) have been studied as a function of temperature and pressure. Large variation in behaviors has been observed; the transition temperature initially increases in all three compounds and at higher pressures that for (1) saturates, for (2) decreases and for (3) increases continuously. These behaviors are due to the competition between antiferromagnetic (t2g ↔ eg) and ferromagnetic (t2g ↔ t2g and eg ↔ eg) interactions to the most dominant exchange pathway, M...N≡C-N...M. A mechanism for the magnetic ordering is proposed.

AB - The ac-susceptibilities of the isostructural metal-organic magnets, MII(N(CN)2)2(M = Ni (1), Co (2) and Fe (3)) have been studied as a function of temperature and pressure. Large variation in behaviors has been observed; the transition temperature initially increases in all three compounds and at higher pressures that for (1) saturates, for (2) decreases and for (3) increases continuously. These behaviors are due to the competition between antiferromagnetic (t2g ↔ eg) and ferromagnetic (t2g ↔ t2g and eg ↔ eg) interactions to the most dominant exchange pathway, M...N≡C-N...M. A mechanism for the magnetic ordering is proposed.

UR - http://www.scopus.com/inward/record.url?scp=0033652119&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033652119&partnerID=8YFLogxK

M3 - Article

VL - 343

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

ER -