Ivan Božović

Prof. Dr. Ivan Božović

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Research Focus & Metrics

Academic Career Length

32Years (1995-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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3 December 2018 in Nature Nanotechnology
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Journal Article
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RWRongting Wu
Rongting Wu
IDIlya K. Drozdov
Ilya K. Drozdov
SEStephen Eltinge
Stephen Eltinge
PZPercy Zahl
Percy Zahl
SISohrab Ismail-Beigi
Sohrab Ismail-Beigi
AGAdrian Gozar
Adrian Gozar

30 October 2009 in Science
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Journal Article
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GLG. Logvenov
G. Logvenov
AGA. Gozar
A. Gozar
IBIvan Božović
Ivan Božović
Superconductivity Sliced Thin: Since the initial characterization of high-temperature cuprate superconductors, an intriguing challenge has been determining the minimum number of copper oxide planes needed to support the superconducting state. The observation of superconductivity at interfaces of metallic oxides and insulators provides a route to addressing this question. Logvenov et al. (p. 699 ) describe a method for layer-by-layer synthesis of alternating oxides of metal and insulators based on La and Cu. Layers three unit cells thick supported superconductivity with a transition temperature of 32 kelvin. When selected layers were then doped with Zn atoms to suppress superconductivity, the interface superconductivity was shown to arise from a single copper-oxide plane.

3 August 2018 in Science
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Journal Article
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PGP. Giraldo-Gallo
P. Giraldo-Gallo
JGJ. A. Galvis
J. A. Galvis
ZSZ. Stegen
Z. Stegen
KMK. A. Modic
K. A. Modic
Fedor BalakirevFedor Balakirev
Fedor Balakirev
ASA. Shekhter
A. Shekhter
Cranking up the field: Cuprate superconductors have many unusual properties even in the “normal” (nonsuperconducting) regions of their phase diagram. In the so-called “strange metal” phase, these materials have resistivity that scales linearly with temperature, in contrast to the usual quadratic dependence of ordinary metals. Giraldo-Gallo et al. now find that at very high magnetic fields—up to 80 tesla—the resistivity of the thin films of a lanthanum-based cuprate scales linearly with magnetic field as well, again in contrast to the expected quadratic law. This dual linear dependence presents a challenge for theories of the normal state of the cuprates. Science , this issue p. 479

4 October 2004 in Physical Review Letters
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Journal Article
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IBIvan Božović
Ivan Božović
GLG. Logvenov
G. Logvenov
MVM. A. J. Verhoeven
M. A. J. Verhoeven
PCP. Caputo
P. Caputo
EGE. Goldobin
E. Goldobin
MBM. R. Beasley
M. R. Beasley
Using an advanced molecular beam epitaxy system, we have reproducibly synthesized atomically smooth films of high-temperature superconductors and uniform trilayer junctions with virtually perfect interfaces. We found that supercurrent runs through very thick barriers. We can rule out pinholes and microshorts; this “giant proximity effect” (GPE) is intrinsic. It defies the conventional explanation; it might originate in resonant tunneling through pair states in an almost-superconducting barrier. GPE may also be significant for superconducting electronics, since thick barriers are easier to fabricate.

20 March 2023 in Nature Nanotechnology
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Journal Article
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ICI. Charaev
I. Charaev
DBD. A. Bandurin
D. A. Bandurin
ABAnthony Bollinger
Anthony Bollinger
IPI. Y. Phinney
I. Y. Phinney
IDI. Drozdov
I. Drozdov
KBK. K. Berggren
K. K. Berggren

21 August 2019 in Nature
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Journal Article
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PZPanpan Zhou
Panpan Zhou
LCLiyang Chen
Liyang Chen
YLYue Liu
Yue Liu
ISIlya Sochnikov
Ilya Sochnikov
ABAnthony T. Bollinger
Anthony T. Bollinger
DNDouglas Natelson
Douglas Natelson