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高压调控的磁性量子临界点和非常规超导电性

程金光

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高压调控的磁性量子临界点和非常规超导电性

程金光

Pressure-tuned magnetic quantum critical point and unconventional superconductivity

Cheng Jin-Guang
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  • 通过化学掺杂或者施加高压等调控手段抑制长程磁有序可以实现磁性量子临界点,在其附近往往伴随出现诸如非费米液体行为或者非常规超导电性等奇特物理现象.相比于化学掺杂,高压调控具有不引入晶格无序和精细调控等优点.利用能提供良好静水压环境的立方六面砧和活塞-圆筒高压低温测量装置,首先系统研究了具有双螺旋磁有序结构的CrAs和MnP单晶的高压电输运行为,分别在Pc0.8 GPa和8 GPa实现了它们的磁性量子临界点,并在Pc附近分别观察到Tc=2 K和1 K的超导电性,相继实现了铬基和锰基化合物超导体零的突破;然后,详细测量了FeSe单晶高压下的电阻率和交流磁化率,绘制了详尽的温度-压力相图,揭示了电子向列序、长程反铁磁序和超导相之间的相互竞争关系,特别是在接近磁有序消失的临界点Pc6 GPa附近观察到Tcmax=38.5 K的高温超导电性,表明临界反铁磁涨落对FeSe中的高温超导电性起重要作用.
    Magnetic quantum critical point (QCP) arises when a long-range magnetic order occurring at finite temperature can be suppressed to absolute zero temperature by using chemical substitutions or exerting high pressure. Exotic phenomena such as the non-Fermi-liquid behaviors or the unconventional superconductivity are frequently observed near the magnetic QCP. In comparison with chemical substitutions, the application of high pressure has some advantages in the sense that it introduces no chemical disorder and can approach the QCP in a very precise manner. In this article, our recent progress in exploring the unconventional superconductors in the vicinity of pressure-induced magnetic QCP is reviewed. By utilizing the piston-cylinder and cubic-anvil-cell apparatus that can maintain a relatively good hydrostatic pressure condition, we first investigated systematically the effect of pressure on the electrical transport properties of the helimagnetic CrAs and MnP. We discovered for the first time the emergence of superconductivity below Tc=2 K and 1 K near their pressure-induced magnetic QCPs at Pc0.8 GPa and 8 GPa for CrAs and MnP, respectively. They represent the first superconductor among the Cr- and Mn-based compounds, and thus open a new avenue to searching novel superconductors in the Cr- and Mn-based systems. Then, we constructed the most comprehensive temperature-pressure phase diagram of FeSe single crystal based on detailed measurements of high-pressure resistivity and alternating current magnetic susceptibility. We uncovered a dome-shaped magnetic phase superseding the nematic order, and observed the sudden enhancement of superconductivity with Tcmax=38.5 K accompanied with the suppression of magnetic order. Our results revealed explicitly the competing nature of nematic order, antiferromagnetic order, and superconductivity, and how the high-Tc superconductivity is achieved by suppressing the long-range antiferromagnetic order, suggesting the important role of antiferromagnetic spin fluctuations for the Cooper paring. These aforementioned results demonstrated that high pressure is an effective approach to exploring or investigating the anomalous phenomena of strongly correlated electronic systems by finely tuning the competing electronic orders.
      通信作者: 程金光, jgcheng@iphy.ac.cn
    • 基金项目: 国家自然科学基金(批准号:11574377)、国家重点基础研究发展计划(批准号:2014CB921500)和中国科学院先导B项目(批准号:XDB07020100)资助的课题.
      Corresponding author: Cheng Jin-Guang, jgcheng@iphy.ac.cn
    • Funds: Project supported by the National Natural Science Foundation of China (Grant No. 11574377), the National Basic Research Program of China (Grant No. 2014CB921500), and the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant No. XDB07020100).
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    Sun J P, Matsuura K, Ye G Z, Mizukami Y, Shimozawa M, Matsubayashi K, Yamashita M, Watashige T, Kasahara S, Matsuda Y, Yan J Q, Sales B C, Uwatoko Y, Cheng J G, Shibauchi T 2016 Nat. Commun. 7 12146

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    Matsubayashi K, Hisada A, Kawae T, Uwatoko Y 2012 Rev. High Pressure Sci. Technol. 22 206

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  • [1]

    Coleman P, Schofield A J 2005 Nature 433 226

    [2]

    Sachdev S, Keimer B 2011 Phys. Today 64 29

    [3]

    Mathur N D, Grosche F M, Julian S R, Walker I R, Freye D M, Haselwimmer R K W, Lonzarich G G 1998 Nature 394 39

    [4]

    Norman M R 2011 Science 332 196

    [5]

    Monthoux P, Pines D, Lonzarich G G 2007 Nature 450 1177

    [6]

    Gegenwart P, Si Q, Steglich F 2008 Nat. Phys. 4 186

    [7]

    Lohneysen H V, Rosch A, Vojta M, Wölfle P 2007 Rev. Mod. Phys. 79 1015

    [8]

    Yu W, Aczel A A, Williams T J, Bud'ko S L, Ni N, Canfield P C, Luke G M 2009 Phys. Rev. B 79 020511

    [9]

    Matsubayashi K, Terai T, Zhou J S, Uwatoko Y 2014 Rhys. Rev. B 90 125126

    [10]

    Wang B S, Matsubayashi K, Cheng J G, Terashima T, Kihou K, Ishida S, Lee C H, Iyo A, Eisaki H, Uwatoko Y 2016 Phys. Rev. B 94 020502

    [11]

    Uwatoko Y 2002 Rev. High Pressure Sci. Technol. 12 306

    [12]

    Mori N, Takahashi H, Takeshita N 2004 High Pressure Res. 24 225

    [13]

    Cheng J G, Matsubayashi K, Nagasaki S, Hisada A, Hirayama T, Hedo M, Kagi H, Uwatoko Y 2014 Rev. Sci. Instrum. 85 093907

    [14]

    Mao H K, Bell P M 1981 Rev. Sci. Instrum. 52 615

    [15]

    Rotundu C R, Cuk T, Greene R L, Shen Z X, Hemley R J, Struzhkin V V 2013 Rev. Sci. Instrum. 84 063903

    [16]

    Wu W, Cheng J G, Matsubayashi K, Kong P P, Lin F K, Jin C Q, Wang N L, Uwatoko Y, Luo J L 2014 Nat. Commun. 5 5508

    [17]

    Cheng J G, Matsubayashi K, Wu W, Sun J P, Lin F K, Luo J L, Uwatoko Y 2015 Phys. Rev. Lett. 114 117001

    [18]

    Sun J P, Matsuura K, Ye G Z, Mizukami Y, Shimozawa M, Matsubayashi K, Yamashita M, Watashige T, Kasahara S, Matsuda Y, Yan J Q, Sales B C, Uwatoko Y, Cheng J G, Shibauchi T 2016 Nat. Commun. 7 12146

    [19]

    Mori N, Takahashi H, Miyane Y 1990 Kotai Butsuri 25 185

    [20]

    Uwatoko Y, Matsubayashi K, Aso N, Nishi M, Fujiwara T, Hedo M, Tabata S, Takagi K, Tado M, Kagi H 2008 Rev. High Pressure Sci. Technol. 18 230

    [21]

    Matsubayashi K, Hisada A, Kawae T, Uwatoko Y 2012 Rev. High Pressure Sci. Technol. 22 206

    [22]

    Boller H, Kallel A 1971 Solid State Commun. 9 1699

    [23]

    Selte K, Kjekshus A, Jamison W E, Andresen A, Engebretsen J E 1971 Acta Chem. Scand. 25 1703

    [24]

    Watanabe H, Kazama N, Yamaguichi Y, Ohashi M 1969 J. Appl. Phys. 40 1128

    [25]

    Wu W, Zhang X D, Yin Z H, Zheng P, Wang N L, Luo J L 2010 Sci. China:Phys. Mech. Astron. 53 1207

    [26]

    Zavadskii E A, Sibarova I A 1980 Sov. Phys. JETP 51 542

    [27]

    Kotegawa H, Nakahara S, Akamatsu R, Tou H, Sugawara H, Harima H 2015 Phys. Rev. Lett. 114 117002

    [28]

    Ito T, Ido H, Motizuki K 2007 J. Magn. Magn. Mater. 310 558

    [29]

    Bao J K, Liu J Y, Ma C W, Meng Z H, Tang Z T, Sun Y L, Zhai H F, Jiang H, Bai H, Feng C M, Xu Z A, Cao G H 2015 Phys. Rev. X 5 011013

    [30]

    Tang Z T, Bao J K, Liu Y, Sun Y L, Ablimit A, Zhai H F, Jiang H, Feng C M, Xu Z A, Cao G H 2015 Phys. Rev. B 91 020506

    [31]

    Tang Z T, Bao J K, Wang Z, Bai H, Jiang H, Liu Y, Zhai H F, Feng C M, Xu Z A, Cao G H 2015 Sci. China:Mater. 58 16

    [32]

    Huber E E J, Ridgley H D 1964 Phys. Rev. 135 A1033

    [33]

    Felcher G P 1966 J. Appl. Phys. 37 1056

    [34]

    Takase A, Kasuya T 1980 J. Phys. Soc. Jpn. 48 430

    [35]

    Banus M D 1972 J. Solid State Chem. 4 391

    [36]

    Matsuda M, Ye F, Dissanayake S E, Cheng J G, Chi S, Ma J, Zhou H D, Yan J Q, Kasamatsu S, Sugino O, Kato T, Matsubayashi K, Okada T, Uwatoko Y 2016 Phys. Rev. B 93 100405

    [37]

    Fan G Z, Zhao B, Wu W, Zheng P, Luo J L 2016 Sci. China:Phys. Mech. Astron. 59 657403

    [38]

    Khasanov R, Amato A, Bonfa P, Guguchia Z, Luetkens H, Morenzoni E, de Renzi R, Zhigadlo N D 2016 Phys. Rev. B 93 180509

    [39]

    Wang Y S, Feng Y J, Cheng J G, Wu W, Luo J L, Rosenbaum T F 2016 Nat. Commun. 7 13037

    [40]

    Yanase A, Hasegawa A 1980 J. Phys. C 13 1989

    [41]

    Davis J C, Lee D H 2013 Proc. Natl. Acad. Sci. USA 110 17623

    [42]

    McQueen T M, Williams A J, Stephens P W, Tao J, Zhu Y, Ksenofontov V, Casper F, Felser C, Cava R J 2009 Phys. Rev. Lett. 103 057002

    [43]

    Imai T, Ahilan K, Ning F L, McQueen T M, Cava R J 2009 Phys. Rev. Lett. 102 177005

    [44]

    Glasbrenner J K, Mazin I I, Jeschke H O, Hirschfeld P J, Fernandes R M, Valenti R 2015 Nat. Phys. 11 953

    [45]

    Hsu F C, Luo J Y, Yeh K W, Chen T K, Huang T W, Wu P M, Lee Y C, Huang Y L, Chu Y Y, Yan D C, Wu M K 2008 Proc. Natl. Acad. Sci. USA 105 14262

    [46]

    Guo J G, Jin S F, Wang G, Wang S C, Zhu K X, Zhou T T, He M, Chen X L 2010 Phys. Rev. B 82 180520

    [47]

    Burrard-Lucas M, Free D G, Sedlmaier S J, Wright J D, Cassidy S J, Hara Y, Corkett A J, Lancaster T, Baker P J, Blundell S J, Clarke S J 2012 Nat. Mater. 12 15

    [48]

    Medvedev S, McQueen T M, Troyan I A, Palasyuk T, Eremets M I, Cava R J, Naghavi S, Casper F, Ksenofontov V, Wortmann G, Felser C 2009 Nat. Mater. 8 630

    [49]

    Lei B, Cui J H, Xiang Z J, Shang C, Wang N Z, Ye G J, Luo X G, Wu T, Sun Z, Chen X H 2016 Phys. Rev. Lett. 116 077002

    [50]

    Wang Q Y, Li Z, Zhang W H, Zhang Z C, Zhang J S, Li W, Ding H, Ou Y B, Deng P, Chang K, Wen J, Song C L, He K, Jia J F, Ji S H, Wang Y Y, Wang L L, Chen X, Ma X C, Xue Q K 2012 Chin. Phys. Lett. 29 037402

    [51]

    Ge J F, Liu Z L, Liu C H, Gao C L, Qian D, Xue Q K, Liu Y, Jia J F 2014 Nat. Mater. 14 285

    [52]

    Liu X, Zhao L, He S L, He J F, Liu D F, Mou D X, Shen B, Hu Y, Huang J W, Zhou X J 2015 J. Phys.:Condens. Mater. 27 183201

    [53]

    Bendele M, Amato A, Conder K, Elender M, Keller H, Klauss H H, Luetkens H, Pomjakushina E, Raselli A, Khasanov R 2010 Phys. Rev. Lett. 104 087003

    [54]

    Bendele M, Ichsanow A, Pashkeich Yu, Keller L, Strassle T, Gusev A, Pomjakushina E, Conder K, Khasanov R, Keller H 2012 Phys. Rev. B 85 064517

    [55]

    Terashiam T, Kikugawa N, Kasahara S, Watashige T, Shibauchi T, Matsuda Y, Wolf T, Bohmer A E, Hardy F, Meingast C, Lohneysen H V, Uji S 2015 J. Phys. Soc. Jpn. 84 063701

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出版历程
  • 收稿日期:  2016-11-02
  • 修回日期:  2016-11-19
  • 刊出日期:  2017-02-05

高压调控的磁性量子临界点和非常规超导电性

  • 1. 中国科学院物理研究所, 极端条件物理重点实验室, 北京 100190
  • 通信作者: 程金光, jgcheng@iphy.ac.cn
    基金项目: 国家自然科学基金(批准号:11574377)、国家重点基础研究发展计划(批准号:2014CB921500)和中国科学院先导B项目(批准号:XDB07020100)资助的课题.

摘要: 通过化学掺杂或者施加高压等调控手段抑制长程磁有序可以实现磁性量子临界点,在其附近往往伴随出现诸如非费米液体行为或者非常规超导电性等奇特物理现象.相比于化学掺杂,高压调控具有不引入晶格无序和精细调控等优点.利用能提供良好静水压环境的立方六面砧和活塞-圆筒高压低温测量装置,首先系统研究了具有双螺旋磁有序结构的CrAs和MnP单晶的高压电输运行为,分别在Pc0.8 GPa和8 GPa实现了它们的磁性量子临界点,并在Pc附近分别观察到Tc=2 K和1 K的超导电性,相继实现了铬基和锰基化合物超导体零的突破;然后,详细测量了FeSe单晶高压下的电阻率和交流磁化率,绘制了详尽的温度-压力相图,揭示了电子向列序、长程反铁磁序和超导相之间的相互竞争关系,特别是在接近磁有序消失的临界点Pc6 GPa附近观察到Tcmax=38.5 K的高温超导电性,表明临界反铁磁涨落对FeSe中的高温超导电性起重要作用.

English Abstract

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