Search for spontaneous magnetization in Sr2RuO4

Tsuyoshi Tamegai; Kohei Yamazaki; Masashi Tokunaga; Zhiqiang Mao; Yoshiteru Maeno

doi:10.1016/S0921-4534(02)02520-0

Search for spontaneous magnetization in Sr₂RuO₄

Tsuyoshi Tamegai, Kohei Yamazaki, Masashi Tokunaga, Zhiqiang Mao, Yoshiteru Maeno

Research output: Contribution to journal › Conference article › peer-review

15 Scopus citations

Abstract

A micro-Hall probe is used to search for spontaneous magnetic field at the edge of chiral domains in the time-reversal-symmetry-breaking state in Sr₂RuO₄. We did not detect any additional magnetic signal larger than 20 mG at low fields, which is much smaller than the theoretical estimate for an isolated chiral domain. This fact suggests that either the spontaneous magnetization is absent or the chiral domains are smaller than the size of Hall probe, 5 μm. In the latter case, magnetic history dependent measurements of the vortex pinning force strongly suggest that the chiral domains can be easily flipped by magnetic fields.

Original language	English (US)
Pages (from-to)	499-500
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	388-389
DOIs	https://doi.org/10.1016/S0921-4534(02)02520-0
State	Published - May 2003
Event	proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: Aug 20 2002 → Aug 27 2002

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(02)02520-0

Cite this

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title = "Search for spontaneous magnetization in Sr2RuO4",

abstract = "A micro-Hall probe is used to search for spontaneous magnetic field at the edge of chiral domains in the time-reversal-symmetry-breaking state in Sr2RuO4. We did not detect any additional magnetic signal larger than 20 mG at low fields, which is much smaller than the theoretical estimate for an isolated chiral domain. This fact suggests that either the spontaneous magnetization is absent or the chiral domains are smaller than the size of Hall probe, 5 μm. In the latter case, magnetic history dependent measurements of the vortex pinning force strongly suggest that the chiral domains can be easily flipped by magnetic fields.",

author = "Tsuyoshi Tamegai and Kohei Yamazaki and Masashi Tokunaga and Zhiqiang Mao and Yoshiteru Maeno",

note = "Funding Information: We thank Z. Hiroi for supplying us Cd 2 Re 2 O 7 single crystals. This work is supported by Grant-in-Aid for Scientific Research from Ministry of Education, Culture, Sports, Science and Technology.; proceedings of the 23rd international conference on low temper ; Conference date: 20-08-2002 Through 27-08-2002",

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doi = "10.1016/S0921-4534(02)02520-0",

language = "English (US)",

volume = "388-389",

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journal = "Physica C: Superconductivity and its applications",

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TY - JOUR

T1 - Search for spontaneous magnetization in Sr2RuO4

AU - Tamegai, Tsuyoshi

AU - Yamazaki, Kohei

AU - Tokunaga, Masashi

AU - Mao, Zhiqiang

AU - Maeno, Yoshiteru

N1 - Funding Information: We thank Z. Hiroi for supplying us Cd 2 Re 2 O 7 single crystals. This work is supported by Grant-in-Aid for Scientific Research from Ministry of Education, Culture, Sports, Science and Technology.

PY - 2003/5

Y1 - 2003/5

N2 - A micro-Hall probe is used to search for spontaneous magnetic field at the edge of chiral domains in the time-reversal-symmetry-breaking state in Sr2RuO4. We did not detect any additional magnetic signal larger than 20 mG at low fields, which is much smaller than the theoretical estimate for an isolated chiral domain. This fact suggests that either the spontaneous magnetization is absent or the chiral domains are smaller than the size of Hall probe, 5 μm. In the latter case, magnetic history dependent measurements of the vortex pinning force strongly suggest that the chiral domains can be easily flipped by magnetic fields.

AB - A micro-Hall probe is used to search for spontaneous magnetic field at the edge of chiral domains in the time-reversal-symmetry-breaking state in Sr2RuO4. We did not detect any additional magnetic signal larger than 20 mG at low fields, which is much smaller than the theoretical estimate for an isolated chiral domain. This fact suggests that either the spontaneous magnetization is absent or the chiral domains are smaller than the size of Hall probe, 5 μm. In the latter case, magnetic history dependent measurements of the vortex pinning force strongly suggest that the chiral domains can be easily flipped by magnetic fields.

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U2 - 10.1016/S0921-4534(02)02520-0

DO - 10.1016/S0921-4534(02)02520-0

M3 - Conference article

AN - SCOPUS:0038781726

SN - 0921-4534

VL - 388-389

SP - 499

EP - 500

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

T2 - proceedings of the 23rd international conference on low temper

Y2 - 20 August 2002 through 27 August 2002

ER -

Search for spontaneous magnetization in Sr₂RuO₄

Abstract

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