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 and Giniyat KHALIULLIN

Basic information

Original name

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

Name in Czech

Feromagnetismus vyvolaný dopováním a možné tripletní párování v d4 Mottově izolantu

Authors

CHALOUPKA, Jiří (203 Czech Republic, guarantor, belonging to the institution) and Giniyat KHALIULLIN (643 Russian Federation)

Edition

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

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10302 Condensed matter physics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 8.462

RIV identification code

RIV/00216224:14740/16:00087778

Organization unit

Central European Institute of Technology

DOI

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

UT WoS

000367784300017

Keywords (in Czech)

spinové modely; magnetismus; ruthenáty

Keywords in English

spin models; magnetism; ruthenates

Abstract

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.

Links

ED1.1.00/02.0068, research and development project

Name: CEITEC - central european institute of technology

GJ15-14523Y, research and development project

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

Citovat

CHALOUPKA, Jiří and Giniyat KHALIULLIN. Doping-Induced Ferromagnetism and Possible Triplet Pairing in d(4) Mott Insulators. Physical Review Letters. College PK: The American Physical Society, 2016, vol. 116, No 1, p. nestránkováno, 5 pp. ISSN 0031-9007. Available from: 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 and 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, vol.~116, No~1, p.~nestránkováno, 5 pp. ISSN~0031-9007. Available from: https://dx.doi.org/10.1103/PhysRevLett.116.017203.

Detailed Information on Publication Record