Comprehensive magnetic phase diagrams of the polar metal C a3(R u0.95 F e0.05)2 O7

Shiming Lei, Shalinee Chikara, Danilo Puggioni, Jin Peng, Mengze Zhu, Mingqiang Gu, Weiwei Zhao, Yu Wang, Yakun Yuan, Hirofumi Akamatsu, Moses H.W. Chan, Xianglin Ke, Zhiqiang Mao, James M. Rondinelli, Marcelo Jaime, John Singleton, Franziska Weickert, Vivien S. Zapf, Venkatraman Gopalan

Research output: Contribution to journalArticle

Abstract

Polar metals exist as a rather unique class of materials as they combine two seemingly mutually exclusive properties (polar order and metallicity) in one system. So far only a few polar metals have been unambiguously identified; the magnetic ones are exceptionally rare. Here we investigate a 5% Fe-doped polar metal Ca3Ru2O7, via electrical transport, magnetization, microstrain, and optical second-harmonic generation measurements. We report the full magnetic phase diagrams (in the field-temperature space) for magnetic field Ha and Hb, which exhibit distinct field-dependent magnetizations behavior. In particular, for Ha we found a ferromagnetic incommensurate spin structure, which is absent in the pure Ca3Ru2O7. We propose a microscopic spin model to understand this behavior, highlighting the role of Fe doping in tipping the delicate balance of the underlying exchange-interaction energy in this system.

Original languageEnglish (US)
Article number224411
JournalPhysical Review B
Volume99
Issue number22
DOIs
StatePublished - Jun 10 2019

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Phase diagrams
Metals
phase diagrams
Magnetization
space temperature
metals
magnetization
Exchange interactions
Harmonic generation
metallicity
harmonic generations
Temperature distribution
temperature distribution
Doping (additives)
Magnetic fields
magnetic fields
interactions
energy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Lei, Shiming ; Chikara, Shalinee ; Puggioni, Danilo ; Peng, Jin ; Zhu, Mengze ; Gu, Mingqiang ; Zhao, Weiwei ; Wang, Yu ; Yuan, Yakun ; Akamatsu, Hirofumi ; Chan, Moses H.W. ; Ke, Xianglin ; Mao, Zhiqiang ; Rondinelli, James M. ; Jaime, Marcelo ; Singleton, John ; Weickert, Franziska ; Zapf, Vivien S. ; Gopalan, Venkatraman. / Comprehensive magnetic phase diagrams of the polar metal C a3(R u0.95 F e0.05)2 O7. In: Physical Review B. 2019 ; Vol. 99, No. 22.
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abstract = "Polar metals exist as a rather unique class of materials as they combine two seemingly mutually exclusive properties (polar order and metallicity) in one system. So far only a few polar metals have been unambiguously identified; the magnetic ones are exceptionally rare. Here we investigate a 5{\%} Fe-doped polar metal Ca3Ru2O7, via electrical transport, magnetization, microstrain, and optical second-harmonic generation measurements. We report the full magnetic phase diagrams (in the field-temperature space) for magnetic field Ha and Hb, which exhibit distinct field-dependent magnetizations behavior. In particular, for Ha we found a ferromagnetic incommensurate spin structure, which is absent in the pure Ca3Ru2O7. We propose a microscopic spin model to understand this behavior, highlighting the role of Fe doping in tipping the delicate balance of the underlying exchange-interaction energy in this system.",
author = "Shiming Lei and Shalinee Chikara and Danilo Puggioni and Jin Peng and Mengze Zhu and Mingqiang Gu and Weiwei Zhao and Yu Wang and Yakun Yuan and Hirofumi Akamatsu and Chan, {Moses H.W.} and Xianglin Ke and Zhiqiang Mao and Rondinelli, {James M.} and Marcelo Jaime and John Singleton and Franziska Weickert and Zapf, {Vivien S.} and Venkatraman Gopalan",
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Lei, S, Chikara, S, Puggioni, D, Peng, J, Zhu, M, Gu, M, Zhao, W, Wang, Y, Yuan, Y, Akamatsu, H, Chan, MHW, Ke, X, Mao, Z, Rondinelli, JM, Jaime, M, Singleton, J, Weickert, F, Zapf, VS & Gopalan, V 2019, 'Comprehensive magnetic phase diagrams of the polar metal C a3(R u0.95 F e0.05)2 O7', Physical Review B, vol. 99, no. 22, 224411. https://doi.org/10.1103/PhysRevB.99.224411

Comprehensive magnetic phase diagrams of the polar metal C a3(R u0.95 F e0.05)2 O7. / Lei, Shiming; Chikara, Shalinee; Puggioni, Danilo; Peng, Jin; Zhu, Mengze; Gu, Mingqiang; Zhao, Weiwei; Wang, Yu; Yuan, Yakun; Akamatsu, Hirofumi; Chan, Moses H.W.; Ke, Xianglin; Mao, Zhiqiang; Rondinelli, James M.; Jaime, Marcelo; Singleton, John; Weickert, Franziska; Zapf, Vivien S.; Gopalan, Venkatraman.

In: Physical Review B, Vol. 99, No. 22, 224411, 10.06.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Comprehensive magnetic phase diagrams of the polar metal C a3(R u0.95 F e0.05)2 O7

AU - Lei, Shiming

AU - Chikara, Shalinee

AU - Puggioni, Danilo

AU - Peng, Jin

AU - Zhu, Mengze

AU - Gu, Mingqiang

AU - Zhao, Weiwei

AU - Wang, Yu

AU - Yuan, Yakun

AU - Akamatsu, Hirofumi

AU - Chan, Moses H.W.

AU - Ke, Xianglin

AU - Mao, Zhiqiang

AU - Rondinelli, James M.

AU - Jaime, Marcelo

AU - Singleton, John

AU - Weickert, Franziska

AU - Zapf, Vivien S.

AU - Gopalan, Venkatraman

PY - 2019/6/10

Y1 - 2019/6/10

N2 - Polar metals exist as a rather unique class of materials as they combine two seemingly mutually exclusive properties (polar order and metallicity) in one system. So far only a few polar metals have been unambiguously identified; the magnetic ones are exceptionally rare. Here we investigate a 5% Fe-doped polar metal Ca3Ru2O7, via electrical transport, magnetization, microstrain, and optical second-harmonic generation measurements. We report the full magnetic phase diagrams (in the field-temperature space) for magnetic field Ha and Hb, which exhibit distinct field-dependent magnetizations behavior. In particular, for Ha we found a ferromagnetic incommensurate spin structure, which is absent in the pure Ca3Ru2O7. We propose a microscopic spin model to understand this behavior, highlighting the role of Fe doping in tipping the delicate balance of the underlying exchange-interaction energy in this system.

AB - Polar metals exist as a rather unique class of materials as they combine two seemingly mutually exclusive properties (polar order and metallicity) in one system. So far only a few polar metals have been unambiguously identified; the magnetic ones are exceptionally rare. Here we investigate a 5% Fe-doped polar metal Ca3Ru2O7, via electrical transport, magnetization, microstrain, and optical second-harmonic generation measurements. We report the full magnetic phase diagrams (in the field-temperature space) for magnetic field Ha and Hb, which exhibit distinct field-dependent magnetizations behavior. In particular, for Ha we found a ferromagnetic incommensurate spin structure, which is absent in the pure Ca3Ru2O7. We propose a microscopic spin model to understand this behavior, highlighting the role of Fe doping in tipping the delicate balance of the underlying exchange-interaction energy in this system.

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