Clarification of origin of the giant-magnetoresistance associated to magnetic field-induced structural transformation in Ni-based Heusler alloys

• Project/Area Number: 25289217
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Physical properties of metals/Metal-base materials
• Research Institution: Tohoku University
• Principal Investigator: Umetsu Rie 東北大学, 金属材料研究所, 准教授 (60422086)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2014: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000); Fiscal Year 2013: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
• Keywords: 電子・磁気物性 / 構造相変態 / 巨大磁気抵抗効果 / 電子状態 / 磁気モーメント

Outline of Final Research Achievements

Off-stoichiometric NiMn-based Heusler alloys indicate martensitic transformation from ferromagnetic parent phase to weak-(or non-)magnetic martensite phase under cooing. At the transformation, structural change and magnetic transition occur at the same time. Therefore, drastic change of the magnetization happens and applying a magnetic field induces inverse martensitic transformation. Unique phenomena, that is, giant magnetoresistance, superelasticity, magnetocaloric effect are also observed associated with the martensitic transformation. Such drastic changes of the various physical properties are considered to be due to the change of the electronic states between in the parent phase and in the martensite phase. In the present study, specimens of three kinds of alloy systems were fabricated in wide concentration region, and electronic specific heat coefficient and the Debye temperature were confirmed by low-temperature specific heat measurements.

Research Products

• [Journal Article] NiMn-based metamagnetic shape memory alloys (2016)
  • Author(s): R.Y. Umetsu, X. Xu, and R. Kainuma
  • Journal Title: Scripta Mater. (Invitation Only: Viewpoint) Volume: 116 Pages: 1-6
  • DOI: 10.1016/j.scriptamat.2016.01.006
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Drastic Change in the Density of States upon Martensitic Phase Transition of Ni2Mn1+xIn1-x (2015)
  • Author(s): S.Y. Zhu, M. Ye, K. Shirai, M. Taniguchi, S. Ueda, Y. Miura, M. Shirai, R.Y. Umetsu, R. Kainuma, T. Kanomata, and A. Kimura
  • Journal Title: J. Phys. Cond. Matter Volume: 27 Issue: 36 Pages: 362201-362201
  • DOI: 10.1088/0953-8984/27/36/362201
  • Peer Reviewed
• [Journal Article] Magnetic Phase Diagram of Heusler alloy system Ni2Mn1-xCrxGa (2015)
  • Author(s): Y. Adachi, R. Kouta, M. Fujio, T. Kanomata, R. Y. Umetsu, X. Xu and R. Kainuma
  • Journal Title: Physics Procedia Volume: 75 Pages: 1187-1191
  • DOI: 10.1016/j.phpro.2015.12.118
  • Peer Reviewed
• [Journal Article] The effect of pressure on the magnetic and structural transition temperatures of the shape memory alloys Ni50+x(Mn0.5Fe0.5)25Ga25-ｘ (2015)
  • Author(s): Y. Adachi, M. Kato, T. Kanomata, D. Kikuchi, X. Xu, R.Y. Umetsu, R. Kainuma and K.R.A. Ziebeck
  • Journal Title: Physica B Volume: 464 Pages: 83-87
  • DOI: 10.1016/j.physb.2015.02.012
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Magnetic Properties of Ni-based Heusler Alloys Showing Meta-Magnetic Shape Memory Effects (2015)
  • Author(s): 梅津理恵、許皛、伊東航、鹿又武、貝沼亮介
  • Journal Title: Materia Japan Volume: 54 Issue: 3 Pages: 98-104
  • DOI: 10.2320/materia.54.98
  • NAID: 130004735454
  • ISSN: 1340-2625, 1884-5843
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Magnetic Properties of the Ferromagnetic Shape Memory Alloys Ni50+xMn27－xGa23 in Magnetic Fields (2014)
  • Author(s): Takuo Sakon, Kohei Otsuka, Junpei Matsubayashi, Yuushi Watanabe, Hironori Nishihara, Kenta Sasaki, Satoshi Yamashita, Rie Y. Umetsu, Hiroyuki Nojiri, Takeshi Kanomata
  • Journal Title: Materials Volume: 7 Issue: 5 Pages: 3715-3734
  • DOI: 10.3390/ma7053715
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Magnetic Field-Induced Reverse Martensitic Transformation and Thermal Transformation Arrest Phenomenon of Ni41Co9Mn39Sb11 Alloy (2014)
  • Author(s): Rie Y Umetsu, Xiao Xu, Wataru Ito, Takumi Kihara, Kohki Takahashi, Masashi Tokunaga and Ryosuke Kainuma
  • Journal Title: metals Volume: 4 Issue: 4 Pages: 609-622
  • DOI: 10.3390/met4040609
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Phase diagram and magnetic moment of Ni50+xMn27-xGa23 ferromagnetic shape memory alloys (2014)
  • Author(s): R. Y. Umetsu, H. Ando, S.Yamashita, K. Endo, H. Nishihara, R. Kainuma, T. Kanomata, K. R. A.Ziebeck
  • Journal Title: JOURNAL OF ALLOYS AND COMPOUNDS Volume: 579 Pages: 521-528
  • DOI: 10.1016/j.jallcom.2013.06.125
  • Peer Reviewed
• [Journal Article] Site occupancy and magnetic moment of Fe in Ni2Mn0.3Fe0.7Ga alloy by neutron powder diffraction Study (2014)
  • Author(s): R. Y. Umetsu, D. Kikuchi, K. Koyama, K.Watanabe, Y.Yamaguchi, R. Kainuma, T. Kanomata
  • Journal Title: JOURNAL OF ALLOYS AND COMPOUNDS Volume: 580 Pages: 506-511
  • DOI: 10.1016/j.jallcom.2013.06.124
  • Peer Reviewed
• [Journal Article] Magnetic phase diagram of Ni2Mn1.44-xCuxSn0.56 shape memory alloys (2014)
  • Author(s): T. Kanomata, R. Y. Umetsu, K. Ohtsuki, T. Shoji, K. Endo, K. Fukushima, H. Nishihara, W. Ito, Y. Adachi, T. Miura, K. Oikawa, R. Kainuma, K. R. A. Ziebeck
  • Journal Title: JOURNAL OF ALLOYS AND COMPOUNDS Volume: 590 Pages: 221-226
  • DOI: 10.1016/j.jallcom.2013.12.045
  • Peer Reviewed
• [Journal Article] Magnetic phase diagram of ferromagnetic shape memory alloys Ni2MnGa1-xFex (2014)
  • Author(s): Y. Hayasaka, S. Aoto, H. Date, T. Kanomata, X. Xu, R.Y. Umetsu, M. Nagasako, T. Omori, R. Kainuma, T. Sakon, H. Nishihara, K. R. A. Ziebeck
  • Journal Title: J ALLOY COMPD Volume: 591 Pages: 280-285
  • DOI: 10.1016/j.jallcom.2013.12.035
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Structural and Magnetic Properties of Magnetic Shape Memory Alloy Ni₄₆Mn₄₁In₁₃ under Magnetic Fields (2014)
  • Author(s): K. Abematsu, R.Y. Umetsu, R. Kainuma, T. Kanomata, K. Watanabe, and K. Koyama
  • Journal Title: MATERIALS TRANSACTIONS Volume: 55 Issue: 3 Pages: 477-481
  • DOI: 10.2320/matertrans.M2013372
  • NAID: 130004455259
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Normal and inverse magnetocaloric effects in the ferromagnetic shape memory alloys (2014)
  • Author(s): M. Kataoka, T. Kanomata, R. Y. Umetsu, R. Kainuma
  • Journal Title: J MAGN MAGN MATER Volume: 361 Pages: 34-43
  • DOI: 10.1016/j.jmmm.2014.02.068
  • Peer Reviewed
• [Journal Article] Magnetoresistance and Transformation Hysteresis in the Ni₅₀Mn_34.4In_15.6 Metamagnetic Shape Memory Alloy (2013)
  • Author(s): R Y Umetsu, et al.
  • Journal Title: MATERIALS TRANSACTIONS Volume: 54 Issue: 3 Pages: 291-296
  • DOI: 10.2320/matertrans.M2012365
  • NAID: 10031155952
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed
• [Journal Article] Mössbauer spectroscopy studies on magnetic properties for 57Fe-substituted Ni-Mn-Sn metamagnetic shape memory alloys (2013)
  • Author(s): R.Y. Umetsu, K. Fukushima, K. Sano, T. Kanomata, Y. Taniguchi, Y. Amako, and R. Kainuma
  • Journal Title: Metals Volume: 3 Issue: 2 Pages: 225-236
  • DOI: 10.3390/met3020225
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Repulsive magneto-structural interaction in the ferromagnetic shape memory alloys Ni2Mn1+xIn1-x (2013)
  • Author(s): M.Kataoka, R. Y.Umetsu, W.Ito, T.Kanomata, R.Kainuma
  • Journal Title: J. Mag. Mag. Mater. Volume: 327 Pages: 125-131
  • DOI: 10.1016/j.jmmm.2012.09.023
  • Peer Reviewed
• [Journal Article] Optical Microscopic Study on NiCoMnAl Metamagnetic Shape Memory Alloy by <i>In Situ</i> Observation under a Pulsed High Magnetic Field (2013)
  • Author(s): X Xu, et al.
  • Journal Title: MATERIALS TRANSACTIONS Volume: 54 Issue: 3 Pages: 357-362
  • DOI: 10.2320/matertrans.MBW201202
  • NAID: 10031155963
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed
• [Journal Article] Magnetic Moment of Cu-Modified Ni2MnGa Magnetic Shape Memory Alloys (2013)
  • Author(s): T. Kanomata, K. Endo, N. Kudo, R.Y. Umetsu, H. Nishihara, M. Kataoka, M. Nagasako, R. Kainuma and K.R.A. Ziebeck
  • Journal Title: Ｍetals Volume: 3 Issue: 1 Pages: 114-122
  • DOI: 10.3390/met3010114
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Magnetic properties and phase diagram of Ni50Mn50-xGax ferromagnetic shape memory alloys (2013)
  • Author(s): X. Xu, Xiao, M. Nagasako, W. Ito, R. Y. Umetsu, K. Kanomata, R. Kainuma
  • Journal Title: ACTA MATERIALIA Volume: 6 Issue: 18 Pages: 6712-6723
  • DOI: 10.1016/j.actamat.2013.07.033
  • Peer Reviewed
• [Journal Article] Stress-induced Transformation at Low Temperatures in Ni_<45>Co_5Mn_<36>In_<14> Metamagnetic Shape Memory Alloy (2013)
  • Author(s): K. Niitsu, X. Xu, R. Y. Umetsu and R. Kainuma
  • Journal Title: Applied Physics Leteers Volume: 103 Issue: 24 Pages: 242406-242406
  • DOI: 10.1063/1.4840336
  • Peer Reviewed
• [Presentation] Temperature dependence of the electrical resistivity on the Heusler alloy system Ni2MnGa1-yFey (2016)
  • Author(s): Y. Adachi, Y. Ogi, N. Kobayashi, Y. Hayasaka, T. Kanomata, R.Y. Umetsu, X. Xu and R. Kainuma
  • Organizer: The Fifth International Confenrence on Ferromagnetic Shape Memory Alloys
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2016-09-05
  • Int'l Joint Research
• [Presentation] Evidence of Change of the Density of States During Transformation in Ni-Mn-X (X = In, Sn and Sb) Alloys (2016)
  • Author(s): R.Y. Umetsu, X. Xu, W. Ito, T. Kanomata and R. Kainuma
  • Organizer: The Fifth International Confenrence on Ferromagnetic Shape Memory Alloys
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2016-09-05
  • Int'l Joint Research
• [Presentation] Phase Diagrams and Physical Properties of Ferromagnetic Shape Memory Heusler Alloys (2016)
  • Author(s): R. Y. Umetsu
  • Organizer: CIMTEC 2016, 7th Forum on New Materials
  • Place of Presentation: Perugia, Italy
  • Year and Date: 2016-06-05
  • Int'l Joint Research / Invited
• [Presentation] Ni2MnGaのプレマルテンサイト変態温度のFe, Cr置換効果 (2016)
  • Author(s): 安達義也，小木雄貴，鹿又 武，梅津理恵，パーマナンド シャルマ，湯葢邦夫，古原 忠，許 皛，貝沼亮介
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大学泉キャンパス、仙台市
  • Year and Date: 2016-03-19
• [Presentation] Magnetic properties of NiMn-based Heusler alloys with metamagnetic shape memory effects (2016)
  • Author(s): R. Y. Umetsu
  • Organizer: BIT’s 2nd Annual World Congress of Smart Materials, WCSM 2016
  • Place of Presentation: Singapore
  • Year and Date: 2016-03-04
  • Int'l Joint Research / Invited
• [Presentation] ホイスラー型Ni基強磁性形状記憶材料（基調講演） (2015)
  • Author(s): 貝沼亮介、許皛、梅津理恵
  • Organizer: 平成27年度日本金属学会秋期講演大会
  • Place of Presentation: 九州大学伊都キャンパス、福岡市
  • Year and Date: 2015-09-16
  • Invited
• [Presentation] Ni2MnGaのマルテンサイト変態温度に対するPt置換効果 (2015)
  • Author(s): 三井好古，梅津理恵，安達義也，鹿又武
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学 （東京）
  • Year and Date: 2015-03-21
• [Presentation] Mn2-xNi1+xGaの磁気特性と圧力効果 (2015)
  • Author(s): 吉峰裕貴，三井好古，廣井政彦，松林和幸，上床美也，梅津理恵，小山佳一
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学 （東京）
  • Year and Date: 2015-03-21
• [Presentation] Ni2Mn1-xCrxGaのマルテンサイト変態の圧力効果 (2015)
  • Author(s): 安達義也，藤尾貢寛，鹿又武，梅津理恵，許皛，貝沼亮介
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学 （東京）
  • Year and Date: 2015-03-21
• [Presentation] Ni-Mn-Snメタ磁性形状記憶合金の母相とマルテンサイト相における低温比熱測定 (2015)
  • Author(s): 梅津理恵，伊東航，許皛，鹿又武，貝沼亮介
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学 （東京）
  • Year and Date: 2015-03-21
• [Presentation] 形状記憶合金の極低温域における超弾性 (2015)
  • Author(s): 貝沼亮介、新津甲大、許皛、梅津理恵、大森俊洋
  • Organizer: 日本金属学会2015年春期講演大会
  • Place of Presentation: 東京大学 （東京）
  • Year and Date: 2015-03-18 – 2015-03-20
  • Invited
• [Presentation] Ni50-xCoxMn31.5Ga18.5の高圧効果 (2015)
  • Author(s): 安達義也、池田大地、松田有矢、鹿又武、松林和幸、上床美也、梅津理恵、許皛、貝沼亮介、片岡光生
  • Organizer: 日本金属学会2015年春期講演大会
  • Place of Presentation: 東京大学 （東京）
  • Year and Date: 2015-03-18
• [Presentation] Ni50-xCoxMn31.5Ga18.5の磁場効果 (2014)
  • Author(s): 池田大地, 安達義也, 加藤宏朗, 鹿又武, 許皛, 貝沼亮介, 梅津理恵, シャルマ パーナンド, 牧野彰宏, 片岡光生
  • Organizer: 日本金属学会2014年秋期講演大会（第155回）
  • Place of Presentation: 名古屋大学 （愛知県、名古屋市）
  • Year and Date: 2014-09-24
• [Presentation] Magnetic properties and electronic state for metamagnetic shape memory alloys Ni-Mn-Z (Z = Sn and In (2014)
  • Author(s): Ｒ．Ｙ． Ｕｍｅｔｓｕ
  • Organizer: International Material Research Congress, IMRC 2014
  • Place of Presentation: Cancun (Mexico)
  • Year and Date: 2014-08-17 – 2014-08-21
  • Invited
• [Presentation] Magnetic field effects on the martensitic transition of Ni50-xCoxMn31.5Ga18.5 Heusler alloys (2014)
  • Author(s): D. Ikeda, Y. Adachi, K. Koike, H. Kato, T. Satake, Y. Mizuno, T. Kanomata, R.Y. Umetsu, X. Xu, R. Kainuma, M. Kataoka
  • Organizer: 6th International Workshop on Materials Analysis and Processing in Magnetic Fields, MAP6
  • Place of Presentation: Southern Beach Hotel & Resort OKINAWA (Naha city, Okinawa, Japan)
  • Year and Date: 2014-07-08 – 2014-07-11
• [Presentation] Magnetic properties and electronic state of Ni-Mn-Sn metamagnetic shape memory alloys (2014)
  • Author(s): Ｒ．Ｙ． Ｕｍｅｔｓｕ
  • Organizer: Moscow International Symposium on Magnetism", MISM-2014
  • Place of Presentation: Moscow （Russia）
  • Year and Date: 2014-06-01
  • Invited
• [Presentation] Ni2Mn1-xCrxGaの磁気相図 (2014)
  • Author(s): 安達義也，幸田竜二，早坂祐樹，鹿又武，梅津理恵，三井好古，許 皛，長迫実，貝沼亮介
  • Organizer: 日本物理学会 第69回年次大会
  • Place of Presentation: 東海大学 （神奈川県、平塚市）
  • Year and Date: 2014-03-27 – 2014-03-30
• [Presentation] Ni50-xCoxMn31.5Ga18.5の磁気相図 (2014)
  • Author(s): 池田 大地, 安達 義也, 鹿又 武, 三井 好古, 梅津理恵, シャルマ パーマナンド, 牧野 彰宏, 許 キョウ, 貝沼 亮介, 片岡 光生
  • Organizer: 日本金属学会春期大会
  • Place of Presentation: 東京工業大学 （東京）
  • Year and Date: 2014-03-21 – 2014-03-23
• [Presentation] Magnetic properties of metamagnetic shape memory alloys of Ni50Mn50-xSnx in Mn-rich region (2013)
  • Author(s): R.Y. Umetsu, A. Sheikh, W. Ito, B. Ouladdiaf, K.R.A. Ziebeck, T. Kanomata and R. Kainuma
  • Organizer: THERMEC 2013
  • Place of Presentation: Las Vegas, Nevada (USA)
  • Year and Date: 2013-12-05
  • Invited
• [Presentation] Ni-Co-Mn-In合金のマルテンサイト変態における磁場ヒステリシスの磁場掃引速度依存性の調査 (2013)
  • Author(s): 許皛, 木原工, 徳永将史, 松尾晶, 伊東航, 梅津理恵, 貝沼亮介
  • Organizer: 日本金属学会秋期大会
  • Place of Presentation: 金沢大学 （石川県、金沢市）
  • Year and Date: 2013-09-17
• [Presentation] Magnetic properties of the ground state in Ni-Mn-Sn metamagnetic shape memory alloys (2013)
  • Author(s): R.Y. Umetsu, A. Sheikh, W. Ito, B. Ouladdiaf, K.R.A. Ziebeck, T. Kanomata and R. Kainuma
  • Organizer: The fourth ICFSMA 2013
  • Place of Presentation: Boise, Idaho (USA)
  • Year and Date: 2013-06-06
  • Invited
• [Remarks]
  • URL: http://adox-system.sakura.ne.jp/bmg_member/?p=15
• [Remarks]
  • URL: http://adox-system.sakura.ne.jp/bmg_member/?p=15