Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning

Benjamin A. Frandsen; Lian Liu; Sky C. Cheung; Zurab Guguchia; Rustem Khasanov; Elvezio Morenzoni; Timothy J.S. Munsie; Alannah M. Hallas; Murray N. Wilson; Yipeng Cai; Graeme M. Luke; Bijuan Chen; Wenmin Li; Changqing Jin; Cui Ding; Shengli Guo; Fanlong Ning; Takashi U. Ito; Wataru Higemoto; Simon J.L. Billinge; Shoya Sakamoto; Atsushi Fujimori; Taito Murakami; Hiroshi Kageyama; Jose Antonio Alonso; Gabriel Kotliar; Masatoshi Imada; Yasutomo J. Uemura

doi:10.1038/ncomms12519

Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning

Benjamin A. Frandsen, Lian Liu, Sky C. Cheung, Zurab Guguchia, Rustem Khasanov, Elvezio Morenzoni, Timothy J.S. Munsie, Alannah M. Hallas, Murray N. Wilson, Yipeng Cai, Graeme M. Luke, Bijuan Chen, Wenmin Li, Changqing Jin, Cui Ding, Shengli Guo, Fanlong Ning, Takashi U. Ito, Wataru Higemoto, Simon J.L. BillingeShoya Sakamoto, Atsushi Fujimori, Taito Murakami, Hiroshi Kageyama, Jose Antonio Alonso, Gabriel Kotliar, Masatoshi Imada, Yasutomo J. Uemura^*

^*Corresponding author for this work

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

34 Citations (Scopus)

Abstract

RENiO₃ (RE=rare-earth element) and V₂O₃ are archetypal Mott insulator systems. When tuned by chemical substitution (RENiO₃) or pressure (V₂O₃), they exhibit a quantum phase transition (QPT) between an antiferromagnetic Mott insulating state and a paramagnetic metallic state. Because novel physics often appears near a Mott QPT, the details of this transition, such as whether it is first or second order, are important. Here, we demonstrate through muon spin relaxation/rotation (μSR) experiments that the QPT in RENiO₃ and V₂O₃ is first order: the magnetically ordered volume fraction decreases to zero at the QPT, resulting in a broad region of intrinsic phase separation, while the ordered magnetic moment retains its full value until it is suddenly destroyed at the QPT. These findings bring to light a surprising universality of the pressure-driven Mott transition, revealing the importance of phase separation and calling for further investigation into the nature of quantum fluctuations underlying the transition.

Original language	English
Article number	12519
Journal	Nature communications
Volume	7
DOIs	https://doi.org/10.1038/ncomms12519
Publication status	Published - 2016 Aug 17
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)

Access to Document

10.1038/ncomms12519

Cite this

Frandsen, B. A., Liu, L., Cheung, S. C., Guguchia, Z., Khasanov, R., Morenzoni, E., Munsie, T. J. S., Hallas, A. M., Wilson, M. N., Cai, Y., Luke, G. M., Chen, B., Li, W., Jin, C., Ding, C., Guo, S., Ning, F., Ito, T. U., Higemoto, W., ... Uemura, Y. J. (2016). Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning. Nature communications, 7, Article 12519. https://doi.org/10.1038/ncomms12519

Frandsen, BA, Liu, L, Cheung, SC, Guguchia, Z, Khasanov, R, Morenzoni, E, Munsie, TJS, Hallas, AM, Wilson, MN, Cai, Y, Luke, GM, Chen, B, Li, W, Jin, C, Ding, C, Guo, S, Ning, F, Ito, TU, Higemoto, W, Billinge, SJL, Sakamoto, S, Fujimori, A, Murakami, T, Kageyama, H, Alonso, JA, Kotliar, G, Imada, M & Uemura, YJ 2016, 'Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning', Nature communications, vol. 7, 12519. https://doi.org/10.1038/ncomms12519

@article{58cdfd0bab2946ceb83583d296a5b23b,

title = "Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning",

abstract = "RENiO3 (RE=rare-earth element) and V2O3 are archetypal Mott insulator systems. When tuned by chemical substitution (RENiO3) or pressure (V2O3), they exhibit a quantum phase transition (QPT) between an antiferromagnetic Mott insulating state and a paramagnetic metallic state. Because novel physics often appears near a Mott QPT, the details of this transition, such as whether it is first or second order, are important. Here, we demonstrate through muon spin relaxation/rotation (μSR) experiments that the QPT in RENiO3 and V2O3 is first order: the magnetically ordered volume fraction decreases to zero at the QPT, resulting in a broad region of intrinsic phase separation, while the ordered magnetic moment retains its full value until it is suddenly destroyed at the QPT. These findings bring to light a surprising universality of the pressure-driven Mott transition, revealing the importance of phase separation and calling for further investigation into the nature of quantum fluctuations underlying the transition.",

author = "Frandsen, {Benjamin A.} and Lian Liu and Cheung, {Sky C.} and Zurab Guguchia and Rustem Khasanov and Elvezio Morenzoni and Munsie, {Timothy J.S.} and Hallas, {Alannah M.} and Wilson, {Murray N.} and Yipeng Cai and Luke, {Graeme M.} and Bijuan Chen and Wenmin Li and Changqing Jin and Cui Ding and Shengli Guo and Fanlong Ning and Ito, {Takashi U.} and Wataru Higemoto and Billinge, {Simon J.L.} and Shoya Sakamoto and Atsushi Fujimori and Taito Murakami and Hiroshi Kageyama and Alonso, {Jose Antonio} and Gabriel Kotliar and Masatoshi Imada and Uemura, {Yasutomo J.}",

year = "2016",

month = aug,

day = "17",

doi = "10.1038/ncomms12519",

language = "English",

volume = "7",

journal = "Nature communications",

issn = "2041-1723",

publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning

AU - Frandsen, Benjamin A.

AU - Liu, Lian

AU - Cheung, Sky C.

AU - Guguchia, Zurab

AU - Khasanov, Rustem

AU - Morenzoni, Elvezio

AU - Munsie, Timothy J.S.

AU - Hallas, Alannah M.

AU - Wilson, Murray N.

AU - Cai, Yipeng

AU - Luke, Graeme M.

AU - Chen, Bijuan

AU - Li, Wenmin

AU - Jin, Changqing

AU - Ding, Cui

AU - Guo, Shengli

AU - Ning, Fanlong

AU - Ito, Takashi U.

AU - Higemoto, Wataru

AU - Billinge, Simon J.L.

AU - Sakamoto, Shoya

AU - Fujimori, Atsushi

AU - Murakami, Taito

AU - Kageyama, Hiroshi

AU - Alonso, Jose Antonio

AU - Kotliar, Gabriel

AU - Imada, Masatoshi

AU - Uemura, Yasutomo J.

PY - 2016/8/17

Y1 - 2016/8/17

N2 - RENiO3 (RE=rare-earth element) and V2O3 are archetypal Mott insulator systems. When tuned by chemical substitution (RENiO3) or pressure (V2O3), they exhibit a quantum phase transition (QPT) between an antiferromagnetic Mott insulating state and a paramagnetic metallic state. Because novel physics often appears near a Mott QPT, the details of this transition, such as whether it is first or second order, are important. Here, we demonstrate through muon spin relaxation/rotation (μSR) experiments that the QPT in RENiO3 and V2O3 is first order: the magnetically ordered volume fraction decreases to zero at the QPT, resulting in a broad region of intrinsic phase separation, while the ordered magnetic moment retains its full value until it is suddenly destroyed at the QPT. These findings bring to light a surprising universality of the pressure-driven Mott transition, revealing the importance of phase separation and calling for further investigation into the nature of quantum fluctuations underlying the transition.

AB - RENiO3 (RE=rare-earth element) and V2O3 are archetypal Mott insulator systems. When tuned by chemical substitution (RENiO3) or pressure (V2O3), they exhibit a quantum phase transition (QPT) between an antiferromagnetic Mott insulating state and a paramagnetic metallic state. Because novel physics often appears near a Mott QPT, the details of this transition, such as whether it is first or second order, are important. Here, we demonstrate through muon spin relaxation/rotation (μSR) experiments that the QPT in RENiO3 and V2O3 is first order: the magnetically ordered volume fraction decreases to zero at the QPT, resulting in a broad region of intrinsic phase separation, while the ordered magnetic moment retains its full value until it is suddenly destroyed at the QPT. These findings bring to light a surprising universality of the pressure-driven Mott transition, revealing the importance of phase separation and calling for further investigation into the nature of quantum fluctuations underlying the transition.

UR - http://www.scopus.com/inward/record.url?scp=84983411817&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983411817&partnerID=8YFLogxK

U2 - 10.1038/ncomms12519

DO - 10.1038/ncomms12519

M3 - Article

AN - SCOPUS:84983411817

SN - 2041-1723

VL - 7

JO - Nature communications

JF - Nature communications

M1 - 12519

ER -

Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this