Doping-Induced Ferromagnetism and Possible Triplet Pairing in
d(4) Mott Insulators

J 2016

Doping-Induced Ferromagnetism and Possible Triplet Pairing in d(4) Mott Insulators

CHALOUPKA, Jiří a Giniyat KHALIULLIN

Základní údaje

Originální název

Doping-Induced Ferromagnetism and Possible Triplet Pairing in d(4) Mott Insulators

Název česky

Feromagnetismus vyvolaný dopováním a možné tripletní párování v d4 Mottově izolantu

Autoři

CHALOUPKA, Jiří (203 Česká republika, garant, domácí) a Giniyat KHALIULLIN (643 Rusko)

Vydání

Physical Review Letters, College PK, The American Physical Society, 2016, 0031-9007

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 8.462

Kód RIV

RIV/00216224:14740/16:00087778

Organizační jednotka

Středoevropský technologický institut

DOI

http://dx.doi.org/10.1103/PhysRevLett.116.017203

UT WoS

000367784300017

Klíčová slova česky

spinové modely; magnetismus; ruthenáty

Klíčová slova anglicky

spin models; magnetism; ruthenates

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 17. 3. 2017 13:49, Mgr. Eva Špillingová

Anotace

V originále

We study the effects of electron doping in Mott insulators containing 4d ions such as Ru4+, Os4+, Rh5+, and Ir5+ with J=0 singlet ground state. Depending on the strength of the spin-orbit coupling, the undoped systems are either nonmagnetic or host an unusual, excitonic magnetism arising from a condensation of the excited J=1 triplet states of t2g4. We find that the interaction between J excitons and doped carriers strongly supports ferromagnetism, converting both the nonmagnetic and antiferromagnetic phases of the parent insulator into a ferromagnetic metal, and further to a nonmagnetic metal. Close to the ferromagnetic phase, the low-energy spin response is dominated by intense paramagnon excitations that may act as mediators of a triplet pairing.

Návaznosti

ED1.1.00/02.0068, projekt VaV

Název: CEITEC - central european institute of technology

GJ15-14523Y, projekt VaV

Název: Mikroskopické modely magnetismu supravodivých pniktidů železa a vrstevnatých oxidů iridia

Citovat

CHALOUPKA, Jiří a Giniyat KHALIULLIN. Doping-Induced Ferromagnetism and Possible Triplet Pairing in d(4) Mott Insulators. Physical Review Letters. College PK: The American Physical Society, 2016, roč. 116, č. 1, s. nestránkováno, 5 s. ISSN 0031-9007. Dostupné z: https://dx.doi.org/10.1103/PhysRevLett.116.017203.

@article{1331273,
   author = {Chaloupka, Jiří and Khaliullin, Giniyat},
   article_location = {College PK},
   article_number = {1},
   doi = {http://dx.doi.org/10.1103/PhysRevLett.116.017203},
   keywords = {spin models; magnetism; ruthenates},
   language = {eng},
   issn = {0031-9007},
   journal = {Physical Review Letters},
   title = {Doping-Induced Ferromagnetism and Possible Triplet Pairing in d(4) Mott Insulators},
   url = {http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.017203},
   volume = {116},
   year = {2016}
}

TY  - JOUR
ID  - 1331273
AU  - Chaloupka, Jiří - Khaliullin, Giniyat
PY  - 2016
TI  - Doping-Induced Ferromagnetism and Possible Triplet Pairing in d(4) Mott Insulators
JF  - Physical Review Letters
VL  - 116
IS  - 1
SP  - nestránkováno
EP  - nestránkováno
PB  - The American Physical Society
SN  - 00319007
KW  - spin models
KW  - magnetism
KW  - ruthenates
UR  - http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.017203
L2  - http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.017203
N2  - We study the effects of electron doping in Mott insulators containing 4d ions such as Ru4+, Os4+, Rh5+, and Ir5+ with J=0 singlet ground state. Depending on the strength of the spin-orbit coupling, the undoped systems are either nonmagnetic or host an unusual, excitonic magnetism arising from a condensation of the excited J=1 triplet states of t2g4. We find that the interaction between J excitons and doped carriers strongly supports ferromagnetism, converting both the nonmagnetic and antiferromagnetic phases of the parent insulator into a ferromagnetic metal, and further to a nonmagnetic metal. Close to the ferromagnetic phase, the low-energy spin response is dominated by intense paramagnon excitations that may act as mediators of a triplet pairing.
ER  -

CHALOUPKA, Jiří a Giniyat KHALIULLIN. Doping-Induced Ferromagnetism and Possible Triplet Pairing in d(4) Mott Insulators. \textit{Physical Review Letters}. College PK: The American Physical Society, 2016, roč.~116, č.~1, s.~nestránkováno, 5 s. ISSN~0031-9007. Dostupné z: https://dx.doi.org/10.1103/PhysRevLett.116.017203.

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