Itinerant ferromagnetism and geometrically suppressed metal-insulator transition in epitaxial thin films of Ca 2RuO 4

Ludi Miao; Punam Silwal; Xiaolan Zhou; Ilan Stern; Jin Peng; Wenyong Zhang; Leonard Spinu; Zhiqiang Mao; Dae Ho Kim

doi:10.1063/1.3680250

Itinerant ferromagnetism and geometrically suppressed metal-insulator transition in epitaxial thin films of Ca ₂RuO ₄

Ludi Miao, Punam Silwal, Xiaolan Zhou, Ilan Stern, Jin Peng, Wenyong Zhang, Leonard Spinu, Zhiqiang Mao, Dae Ho Kim

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

We have investigated the effect of epitaxial strain on the electrical and magnetic properties of high quality Ca ₂RuO ₄ films on LaAlO ₃ (001) substrates. The films exhibit low temperature itinerant ferromagnetic ground state and significantly suppressed metal-insulator transition due to epitaxial strain. An anomaly in the in-plane resistivity was also observed near the Néel temperature. Symmetry analysis of anisotropic magnetoresistance suggests a phase coexistence of ferromagnetic metal and antiferromagnetic insulator in ground state.

Original language	English (US)
Article number	052401
Journal	Applied Physics Letters
Volume	100
Issue number	5
DOIs	https://doi.org/10.1063/1.3680250
State	Published - Jan 30 2012

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.3680250

Cite this

@article{2e8241fcda584216bc2eb43c6b565674,

title = "Itinerant ferromagnetism and geometrically suppressed metal-insulator transition in epitaxial thin films of Ca 2RuO 4 ",

abstract = "We have investigated the effect of epitaxial strain on the electrical and magnetic properties of high quality Ca 2RuO 4 films on LaAlO 3 (001) substrates. The films exhibit low temperature itinerant ferromagnetic ground state and significantly suppressed metal-insulator transition due to epitaxial strain. An anomaly in the in-plane resistivity was also observed near the N{\'e}el temperature. Symmetry analysis of anisotropic magnetoresistance suggests a phase coexistence of ferromagnetic metal and antiferromagnetic insulator in ground state.",

author = "Ludi Miao and Punam Silwal and Xiaolan Zhou and Ilan Stern and Jin Peng and Wenyong Zhang and Leonard Spinu and Zhiqiang Mao and {Ho Kim}, Dae",

note = "Funding Information: This research is supported by DOD ARO under Grant No. W911NF0910530 and the LA-SiGMA program.",

year = "2012",

month = jan,

day = "30",

doi = "10.1063/1.3680250",

language = "English (US)",

volume = "100",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "5",

}

TY - JOUR

T1 - Itinerant ferromagnetism and geometrically suppressed metal-insulator transition in epitaxial thin films of Ca 2RuO 4

AU - Miao, Ludi

AU - Silwal, Punam

AU - Zhou, Xiaolan

AU - Stern, Ilan

AU - Peng, Jin

AU - Zhang, Wenyong

AU - Spinu, Leonard

AU - Mao, Zhiqiang

AU - Ho Kim, Dae

N1 - Funding Information: This research is supported by DOD ARO under Grant No. W911NF0910530 and the LA-SiGMA program.

PY - 2012/1/30

Y1 - 2012/1/30

N2 - We have investigated the effect of epitaxial strain on the electrical and magnetic properties of high quality Ca 2RuO 4 films on LaAlO 3 (001) substrates. The films exhibit low temperature itinerant ferromagnetic ground state and significantly suppressed metal-insulator transition due to epitaxial strain. An anomaly in the in-plane resistivity was also observed near the Néel temperature. Symmetry analysis of anisotropic magnetoresistance suggests a phase coexistence of ferromagnetic metal and antiferromagnetic insulator in ground state.

AB - We have investigated the effect of epitaxial strain on the electrical and magnetic properties of high quality Ca 2RuO 4 films on LaAlO 3 (001) substrates. The films exhibit low temperature itinerant ferromagnetic ground state and significantly suppressed metal-insulator transition due to epitaxial strain. An anomaly in the in-plane resistivity was also observed near the Néel temperature. Symmetry analysis of anisotropic magnetoresistance suggests a phase coexistence of ferromagnetic metal and antiferromagnetic insulator in ground state.

UR - http://www.scopus.com/inward/record.url?scp=84863011879&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863011879&partnerID=8YFLogxK

U2 - 10.1063/1.3680250

DO - 10.1063/1.3680250

M3 - Article

AN - SCOPUS:84863011879

SN - 0003-6951

VL - 100

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 5

M1 - 052401

ER -

Itinerant ferromagnetism and geometrically suppressed metal-insulator transition in epitaxial thin films of Ca ₂RuO ₄

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this